Program of the Sessions Evanston, Illinois, October 23–24, 2004

11:00AM Determination of the dimension of a variety and Saturday, October 23 (6) some applications. Wenyuan Wu*andGreg Reid,Department of Meeting Registration Applied Mathematics, University of Western Ontario (1001-14-94) 7:00 AM –4:00PM Lobby, Technological Institute

AMS Exhibit and Book Sale Special Session on Iterated Function Systems and Analysis on Fractals, I 7:00 AM –4:00PM Room L 150, Technological Institute 8:30 AM –10:50AM Room L 160, Technological Institute Special Session on Solving Polynomial Systems, I Organizers: Ka-Sing Lau,Chinese University of Hong Kong 8:00 AM – 11:20 AM Room G 43, Donald P. Jacobs Center Stephen S.-T. Yau,University of Illinois Organizers: Anton Leykin,University of Illinois at at Chicago Chicago 8:30AM Orthogonal families of exponentials. Jan Verschelde,University of Illinois at (7) Steen Pedersen,WrightState University Chicago (1001-28-361) 8:00AM Homotopies to Compute Intersections of Solution 9:00AM Variable coefficient Iterated Function Systems (1) Components of Polynomial Systems.
(8) associated with multiresolution analysis. Andrew J Sommese,UniversityofNotreDame Palle E. T. Jorgensen,UniversityofIowa (1001-65-91) (1001-46-05) 8:30AM Solving Polynomial Systems by Intersecting 9:30AM Refinable functions with arbitrary dilations. (2) Subsystems Using Diagonal Homotopies. (9) Yang Wang*, Georgia Institute of Technology, and Preliminary report. De-jun Feng,Tsinghua University (1001-28-07) Andrew J Sommese,UniversityofNotreDame,Jan 10:00AM The 3x+1 Semigroup. Preliminary report. Verschelde,University of Illinois at Chicago, and
(10) David Applegate,At&TLabs-Research, and Jeffrey Charles W Wampler*, General Motors R&D Center CLagarias*, University of Michigan (1001-11-352) (1001-65-104) 10:30AM On the Connectedness and Disklikeness of 9:00AM Advantages of Parsing Polynomials into
(11) Self-affine Tiles. Preliminary report. (3) Straight-line Programs. Preliminary report. Ka-Sing Lau*, Department of Mathematics, The Daniel J Bates,UniversityofNotreDame Chinese University of Hong Kong, and King Shun (1001-68-243) Leung,Department of Mathematics, Hong Kong 9:30AM Break Inst.of Education (1001-26-54) 10:00AM Is the attained solution isolated? Preliminary report. (4) Tien-Yien Li,Department of Mathematics, Michigan State University, E.Lansing,MI (1001-65-201) Special Session on Nonlinear Waves, I

10:30AM Newton’s Method with Deflation for Isolated 8:30 AM – 11:20 AM Room L R2, Technological Institute (5) Singularities of Polynomial Systems. Anton Leykin, Jan Verschelde and Ailing Zhao*, Organizers: Jerry L. Bona,University of Illinois at University of Illinois at Chicago (1001-65-235) Chicago

The time limit for each contributed paper in the sessions is ten minutes. found in Volume 25, Issue 4 of Abstracts of papers presented to the In the Special Sessions the time limit varies from session to session and American Mathematical Society,ordered according to the numbers in within sessions. To maintain the schedule, time limits will be strictly parentheses following the listings. The middle two digits, e.g., 897-20- enforced. 1136, refer to the Mathematical Reviews subject classification assigned For papers with morethanone author, an asterisk follows the name of by the individual author. Groups of papers for each subject are listed the author who plans to present the paper at the meeting. chronologically in the Abstracts.The last one to four digits, e.g., 897-20- Papers flagged with a solid triangle (
) have been designated by the 1136,refer to the receipt number of the abstract; abstracts are further author as being of possible interest to undergraduate students. sorted by the receipt number within each classification. Abstracts of papers presented in the sessions at this meeting will be

Appendix–32 NOTICES OF THE AMS VOLUME 51, NUMBER 9 Evanston, IL, Saturday, October 23 –ProgramoftheSessions

Shuming Sun,VirginiaPolytechnic 8:30AM Endo-trivial modules for finite groups of Lie type Institute and State University (22) (joint work with J. Carlson and D. Nakano). Bingyu Zhang,UniversityofCincinnati Nadia Paola Mazza,UniversityofGeorgia, Athens, GA (1001-20-89) 8:30AM Collapse dynamics in Yang-Mills, nonlinear
(12) Schroedinger and Keller-Segel equations. 9:00AM Ideal Structure of Iterated Smash Tensor Power of
Preliminary report. (23) the Restricted Enveloping Algebra of sl2. IMSigal,UniversityofNotreDameandUniversity Preliminary report. of Toronto (1001-35-368) Stefan Catoiu,DePaul University (1001-16-386) 9:00AM Eventual Periodicity for dispersive wave equations 9:30AM Algebras related to branching rules. Preliminary (13) in a quarter plane. (24) report. Jiahong Wu,OklahomaState University Jeb F. Willenbring,UniversityofWisconsin - (1001-35-152) Milwaukee (1001-22-272) 9:30AM Comparison of Quarter-plane and Two-point 10:00AM FCR factors of Enveloping algebras. (14) Boundary Value Problems: The BBM-equation. (25) Ian M Musson*, Department of Mathematical Preliminary report. Sciences, University of Wisconsin-Milwaukee, and Hongqiu Chen*, Univerity of Memphis and Jeb F. Willenbring,Department of Mathematical University of Illinois at Chicago, Jerry L Bona, Sciences, University ofWisconsin- (1001-16-389) University of Illinois at Chicago, Shuming Sun, 10:30AM Fixed Subrings of Noetherian Graded Regular Rings. Virginia Polytechnic Institute and State University, (26) Ellen E. Kirkman*andJames J. Kuzmanovich, and Bingyu Zhang,UniversityofCincinnati Wake Forest University (1001-16-262) (1001-35-327) 10:00AM Beyond -3/4 for the Korteweg-de Vries Equation. Special Session on Mathematical Techniques in (15) Preliminary report. Musical Analysis, I Jerry L. Bona,University of Illinois at Chicago, Shuming Sun,VirginiaTech, and Bing-Yu Zhang*, 8:30 AM – 11:20 AM Auditorium, Technological Institute University of Cincinnati (1001-35-158) 10:30AM The initial-boundary value problem for the Organizers: Judith Baxter,University of Illinois at (16) one-dimensional nonlinear Schrodinger¨ equation. Chicago Justin Holmer,UniversityofCalifornia, Berkeley Richard Cohn,UniversityofChicago (1001-35-309) Robert Peck,Louisiana State University 11:00AM Spectra of Positive and Negative Energies in the 8:30AM Musical Properties of Quasi-Periodic Sequences. (17) Linearized NLS Problem. (27) Norman A Carey*, Eastman School of Music, and Vitali G Vougalter,UniversityofNotreDame David L Clampitt,Yale University (1001-11-178) Department of Mathematics (1001-35-408) 9:30AM Some remarks about well-formedness. (28) Domenico Vicinanza*andVittorio Cafagna, Special Session on Mathematical Problems in Musica Inaudita - DMI - University of Salerno (1001-20-206) Robotics, I 10:30AM Rubber Band Geometry: navigating within and
8:30 AM –10:45AM Room A 110, Technological Institute (29) between microtonal universes. Preliminary report. Stephen G. Soderberg,Library of Congress Organizer: Robert W. Ghrist,University of Illinois (1001-51-355) at Urbana-Champaign 8:30AM Mathematical and Computational Models in (18) Robotics and Structural Biology. Special Session on Hopf Algebras at the Crossroads Gregory S. Chirikjian,Johns Hopkins University of Algebra, Category Theory, and Topology, I (1001-43-128) 8:30 AM – 11:20 AM Room G 45, Donald P. Jacobs Center 9:00AM Regulation of Walking Speed in Bipedal Locomotion.
(19) Preliminary report. Organizers: Louis H. Kauffman,Universityof MarkWSpong,University of Illinois at Illinois at Chicago Urbana-Champaign (1001-93-52) David E. Radford,University of Illinois 9:30AM Topological Localization and Mapping in the at Chicago
(20) Horizontal Plane via Successive Visual Registration. Fernando J. O. Souza,Universityof Preliminary report. Iowa Daniel Koditschek*andGabriel Lopes,University 8:30AM Groups of grouplikes of a semisimple Hopf algebra of Michigan (1001-93-374) (30) and its dual. Preliminary report. 10:00AM Computer Vision Challenges: 3D Photography and Yevgenia Kashina,DePaulUniversity
(21) Object Recognition. (1001-16-399) Jean A Ponce,University of Illinois at 9:00AM Application of the Fadeev-Reshetikhin-Taxhtajan Urbana-Champaign (1001-68-290) (31) construction to produce new finite-dimensional quasitriangular Hopf algebras which are not equivalent via cocycle twisting. Preliminary report. Special Session on Algebraic Representations and Jacob Towber,Mathematics Department, DePaul Deformations, I Univrsity, Chicago, Illinois (1001-08-342)

8:30 AM –10:50AM Room LG 52, Technological Institute 9:30AM Differential Algebra Structures on Families of Trees. (32) Robert L. Grossman,Uinv. of Illinois at Chicago, Organizers: Stephen R. Doty,Loyola University of and Richard G. Larson*, Univ. of Illinois at Chicago Chicago (1001-16-274) Anthony Giaquinto,Loyola University 10:00AM Anoteonanti-Yetter-Drinfeld modules. of Chicago (33) Mihai D Staic,SUNY at Buffalo (1001-16-222)

OCTOBER 2004 NOTICES OF THE AMS Appendix–33 Program of the Sessions – Evanston, IL, Saturday, October 23 (cont’d.)

10:30AM Yetter-Drinfeld modules, flatness, and Hopf-cyclic Special Session on Computability Theory and (34) cohomology. Applications, I Masoud Khalkhali,MathematicsDepartment, University of Western Ontario, London ON, Canada 8:30 AM – 11:20 AM Room G 03, Donald P. Jacobs Center (1001-18-237) Organizers: Robert I. Soare,UniversityofChicago 11:00AM Some results on co-Frobenius Hopf algebras. (35) Preliminary report. Denis R. Hirschfeldt,Universityof Margaret Beattie,Mount Allison University Chicago (1001-16-348) 8:30AM Degrees of nontrivial self-embeddings of (45) computable linear orderings. Rodney G. Downey,VictoriaUniversity of Wellington, Carl Jockusch*, University of Illinois at Special Session on Extremal Combinatorics, I Urbana-Champaign, and Joseph S. Miller,Victoria University of Wellington (1001-03-44) 8:30 AM – 11:20 AM Room G 36, Donald P. Jacobs Center 9:00AM Computable structures of high rank. Preliminary Organizers: Dhruv Mubayi,University of Illinois at (46) report. Chicago W. Calvert,UniversityofNotreDame,S. S. Yi Zhao,University of Illinois at Goncharov,Sobolev Institute/Novosibirsk State Chicago University, J. F. Knight*, University of Notre Dame, O. Kudinov, A. S. Morozov and V. Puzarenko, 8:30AM It’s raining hyperedges: Online intersecting Sobolev Institute/Novosibirsk State University (36) hypergraphs beyond the threshold. (1001-03-69) Ryan Martin*, Iowa State University, Tom Bohman, Alan Frieze,CarnegieMellon University, Miklos 9:30AM Index sets of dense Boolean algebras. Ruszinko,Computer and Automation Research (47) Barbara F. Csima*, Antonio Montalban and Institute, Hungarian Academy of Sciences, and Cliff Richard A. Shore,Cornell University (1001-03-170) Smyth,Carnegie Mellon University (1001-05-29) 10:00AM Ramsey Degrees. 9:00AM The Ramsey number for hypergraph cycles I. (48) Joseph R Mileti,UniversityofChicago (37) PHaxell*, University of Waterloo, T. Luczak,Adam (1001-03-161) Mickiewicz University, Y. Peng,Indiana State 10:30AM Undecidability in the Enumeration Degrees. University, V. Rodl,EmoryUniversity,A. Rucinski, (49) Preliminary report. Adam Mickiewicz University, M. Simonovits, Thomas F. Kent,UniversityofWisconsin, Madison Renyi Institute of Mathematics, and J. Skokan, (1001-03-199) Universidade de Sao Paulo (1001-05-323) 11:00AM Description and Comparison of Computable 9:30AM Ramsey number of hypergraph cycles II. (50) Structures. Preliminary report. (38) Jozef Skokan,UniversidadedeSaoPaulo Wesley Calvert*, University of Notre Dame, (1001-05-184) Valentina Harizanov,GeorgeWashington 10:00AM Co-degree Density of hypergraphs. University, Julia F. Knight and Sara Miller, (39) Dhruv Mubayi and Yi Zhao*, University of Illinois University of Notre Dame (1001-03-82) at Chicago (1001-05-192) 10:30AM Extremal problems on packing of d-degenerate Special Session on Differential Geometry, I (40) graphs. Preliminary report. 9:00 AM –10:50AM Room MG 28, Technological Institute Bela Bollob´as,UniversityofMemphis,Alexandr Kostochka*andKittikorn Nakprasit,Universityof Organizers: Anders Ingemar Linner,Northern Illinois at Urbana-Champaign (1001-05-18) Illinois University 11:00AM Maximum Kr+1-free graphs which are not r -partite. Hongyou Wu,Northern Illinois
(41) Mihyun Kang,Humbodlt University, Berlin, and University Oleg Pikhurko*, Carnegie Mellon University 9:00AM Skew loops and hyperboloids. Preliminary report. (1001-05-137)
(51) Bruce Solomon,Indiana University (1001-53-313) 9:30AM Magnetic systems with the same geodesics. (52) Keith Burns*, Northwestern University, and Special Session on Fluid Dynamics, Diffusion and Vladimir Matveev,UniversitaetFreiburg Reaction, I (1001-53-338) 10:00AM Closed, Knotted and Symmetric Solutions of the 8:30 AM – 11:20 AM Room M 177, Technological Institute (53) Vortex Filament Equation. Preliminary report. Organizers: Peter S. Constantin,Universityof Thomas A. Ivey*andAnnalisa M. Calini,College Chicago of Charleston (1001-53-107) Leonid V. Ryzhik,Universityof 10:30AM Elastic energy and variable length. Preliminary Chicago (54) report. Anders Linner,Northern Illinois 8:30AM On Reaction-Convection in Incompressible 3D-Fluid: University/Northwestern (1001-58-418) (42) aHomogenization Problem. Mark Freidlin,UniversityofMaryland (1001-35-174) Special Session on Spectral Problems of Differential Operators, I 9:30AM Effects of heat loss and differential diffusion on the (43) propagation of a premixed flame opposed to or 9:00 AM –10:45AM Room M 128, Technological Institute assisted by a imposed flow. Moshe Matalon,NorthwesternUniversity Organizers: Qingkai Kong,Northern Illinois (1001-35-175) University 10:30AM Homogenization in stationary ergodic media. Hongyou Wu,Northern Illinois (44) P. Souganidis,University of Texas (1001-35-305) University

Appendix–34 NOTICES OF THE AMS VOLUME 51, NUMBER 9 Evanston, IL, Saturday, October 23 –ProgramoftheSessions

Anton Zettl,Northern Illinois Saul Schleimer,University of Illinois at University Chicago 9:00AM Sturm-Liouville Problems: A Survey. Preliminary 9:00AM Minimal Triangulations of Closed Orientable (55) report. (67) Reducible 3-Manifolds. Anton Zettl,Northern Illinois University Alexander Charles Barchechat,TulaneUniversity (1001-34-244) (1001-57-88) 10:00AM Comparison of eigenvalue problems due to Krein, 9:30AM Eigenvalue fieldsofarithmetic Kleinian groups. (56) Feller and Atkinson. (68) Preliminary report. Hans W Volkmer,Universityof Emily Hamilton*, Emory University, and Alan W Wisconsin-Milwaukee (1001-47-216) Reid,University of Texas at Austin (1001-57-363) 10:00AM The density conjecture for manifolds with bounded Special Session on Modern Schubert Calculus, I (69) geometry. Kenneth Bromberg*, University of Utah, and Juan 9:00 AM – 11:20 AM Room G 44, Donald P. Jacobs Center Souto,Bonn (1001-57-405) 10:30AM The mapping class group action on quasi-Fuchsian Organizers: Ezra Miller,UniversityofMinnesota (70) space. Preliminary report. Frank Sottile,TexasA&MUniversity Juan Souto,CNRS,andPeter Storm*, Stanford 9:00AM Monodromy and Galois groups of Schubert University (1001-53-291) (57) problems. 11:00AM Surface groups are frequently faithful. Ravi Vakil,Stanford (1001-14-141) (71) Jason DeBlois and Richard P Kent*, University of 9:30AM Mondrian tableaux and Littlewood-Richardson Texas at Austin (1001-57-131) (58) rules. Preliminary report. Izzet Coskun,M.I.T. (1001-14-106) Special Session on Special Functions, Orthogonal 10:00AM Grobner¨ geometry of Schubert and Grothendieck Polynomials, and their Applications, I (59) transition formulae. Alexander Yong*andAllen Knutson,UCBerkeley 9:00 AM – 11:25 AM Room L 158, Technological Institute (1001-14-256) Organizers: George Gasper,Northwestern 10:30AM Kogan’s and Buch’s problems via transition. (60) Allen Knutson*andAlexander Yong,UCBerkeley University (1001-05-344) Ahmed I. Zayed,DePaulUniversity 11:00AM Horn’s Problem, Honeycombs and Vinnikov Curves. 9:00AM Orthogonal polynomials and coefficients of modular (61) David E Speyer,UniversityofCalifornia, Berkeley
(72) forms. (1001-22-425) Sharon Frechette,College of Holy Cross, Ken Ono*, University of Wisconsin at Madison, and Special Session on Representation Theory of Matthew Papanikolas,TexasA&MUniversity (1001-11-166) Reductive Groups, I 9:30AM Anewformula for 9 squares and Humbert’s class 9:00 AM – 11:20 AM Room LG 66, Technological Institute (73) number formulas. Preliminary report. Stephen C. Milne,TheOhioStateUniversity Organizers: Jeffrey D. Adler,UniversityofAkron (1001-11-412) Ju-Lee Kim,University of Illinois at 10:00AM Generalized Lambert series identities. Chicago
(74) Song Heng Chan,University of Illinois at 9:00AM Representations of p-adic GL2(D). Preliminary Urbana-Champaign (1001-11-341) (62) report. 10:30AM The compact representation of a Leonard pair. A. Raghuram,University of Iowa (1001-22-168)
(75) Preliminary report. 9:30AM The spherical unitary dual for split p-adic Paul M Terwilliger,MathDepartment, University of (63) exceptional groups. Wisconsin-Madison (1001-33-227) Dan M. Ciubotaru,Massachusetts Institute of 11:00AM Orthogonal Polynomials in Two Discrete Variables Technology (1001-22-301) (76) Related to the Quantum Group Uq(so(5)). 10:00AM Tempered spectrum for special unitary groups. Alexander Rozenblyum,NewYorkCity College of (64) David Goldberg,Purdue University (1001-22-294) Technology, CUNY (1001-33-43) 10:30AM Decomposition of Restrictions of Principal Series (65) Representations of p-adic GL(3) to a Maximal Special Session on Codes and Applications, I Compact Subgroup. Preliminary report. Peter S. Campbell and Monica Nevins*, University 9:00 AM –10:50AM Room G 42, Donald P. Jacobs Center of Ottawa (1001-20-289) Organizers: William C. Huffman,Loyola University 11:00AM On the Steinberg representation of a p-adic group. of Chicago (66) Preliminary report. Vera S. Pless,University of Illinois at Peter S Campbell,UniversityofOttawa Chicago (1001-20-288) 9:00AM Explicit Goppa code construction on fibre products (77) of Kummer Covers. Special Session on Low-Dimensional Topology and Hiren Maharaj,Clemson University (1001-14-25) Kleinian Groups, I m F 9:30AM Enumeration of AGL( 3 , p3 )-Invariant Extended (78) 9:00 AM – 11:20 AM Room LG 76, Technological Institute Cyclic Codes. Xiang-dong Hou,UniversityofSouth Florida Organizers: Ian Agol,University of Illinois at (1001-05-103) Chicago 10:00AM Highly symmetric weight functions on matrix rings. John Holt,University of Illinois at (79) Jay A. Wood,WesternMichigan University Chicago (1001-94-373)

OCTOBER 2004 NOTICES OF THE AMS Appendix–35 Program of the Sessions – Evanston, IL, Saturday, October 23 (cont’d.)

10:30AM MacWilliams duality for cosets over rings. 9:30AM On some parity questions about pure and mixed (80) Preliminary report. (89) motives. Preliminary report. Iwan Duursma,Univ of Illinois at Yves Andre,EcoleNormaleSuperieure Urbana-Champaign (1001-11-404) (1001-14-159) 10:30AM Motivic decomposition of projective homogeneous (90) varieties and the method of Bialynicki-Birula. Special Session on Nonlinear Partial Differential Preliminary report. Equations and Applications, I Patrick Brosnan,UCLA (1001-14-123)

9:00 AM –10:55AM Room L R3, Technological Institute Special Session on Index Theory, Morse Theory, and Organizers: Gui-Qiang Chen,Northwestern the Witten Deformation Method, I University 9:30 AM – 11:15 AM Room L 221, Technological Institute Mikhail Feldman,Universityof Wisconsin at Madison Organizers: Igor Prokhorenkov,TexasChristian 9:00AM Shock and boudary layers for Boltzmann equation. University (81) Tai-Ping Liu,Stanford University (1001-35-203) Ken Richardson,TexasChristian 9:30AM Uniqueness of weak solutions of the Navier-Stokes University (82) equations of multidimensional, compressible flow. 9:30AM Kirwan-Novikov inequalities on a manifold with David Hoff,Indiana University (1001-35-113) (91) boundary. 10:00AM Nonlinear hyperbolic surface waves. Maxim Braverman,Northeastern University (83) John K Hunter,Department of Mathematics, (1001-58-345) University of California at Davis (1001-35-400) 10:30AM Topology of Quasiperiodic Functions on the Plane. 10:30AM Two-dimensional regular shock reflection for the (92) Sergey P Novikov,IPSTandMath Department, (84) pressure gradient system of conservation laws. University of Maryland, College Park (1001-37-381) Preliminary report. Yuxi Zheng,Penn State University (1001-35-234) AMS Special Presentation, Part I

9:30 AM – 11:00 AM Room L 170, Technological Institute Special Session on Stability Issues in Fluid Dynamics, I TA Development using case studies: A workshop for faculty 9:30 AM – 11:20 AM Room L R4, Technological Institute Organizer: Diane Herrmann,Universityof Organizers: Susan J. Friedlander,Universityof Chicago Illinois at Chicago Roman Shvydkoy,University of Illinois Special Session on Algebraic Topology: Interactions at Chicago with Representation Theory and Algebraic Geometry, 9:30AM The effect of gravity modulation on the onset of I
(85) filtrational convection. Preliminary report. Natalya Popova,University of Illinois at Chicago 10:00 AM –10:50AM Room LG 68, Technological Institute (1001-76-326) Organizers: Paul G. Goerss,Northwestern 10:00AM Generic hydrodynamic instability via contact University (86) homology. Jesper Kragh Grodal,Universityof Robert Ghrist*, University of Illinois, Chicago Urbana-Champaign, Mathematics, and John Etnyre,UniveristyofPennsylvania, Mathematics Brooke E. Shipley,University of Illinois (1001-37-395) at Chicago 10:30AM Fractal patterns formed by growth of radial viscous 10:00AM Dyer-Lashof algebras for Morava E-theory. (87) fingers. (93) Preliminary report. Harry L. Swinney*, O. Praud and E. Sharon, Charles W Rezk,Assistant Professor/University of University of Texas at Austin (1001-76-293) Illinois at Urbana-Champaign (1001-55-306) AM 11:00AM Faraday wave pattern selection via multi-frequency 10:30 On Jacobians of complex curves with boundary. (88) forcing. (94) T. Fiore and I. Kriz*, University of Michigan Mary Silber*, Applied Mathematics Dept., (1001-55-351) Northwestern University, Jeff Porter,Dept. of Applied Mathematics, University of Leeds, and Special Session on Geometric Aspects of the Chad M. Topaz,Dept. of Mathematics, UCLA Langlands Program, I (1001-76-245) 10:00 AM –10:50AM Room L 251, Technological Institute Organizers: Edward Frenkel,Universityof Special Session on Applications of Motives, I California Berkeley

9:30 AM – 11:20 AM Room L 211, Technological Institute Dennis Gaitsgory,Universityof Chicago Organizers: Eric M. Friedlander,Northwestern Mark Goresky,Institute for Advanced University Study Alexander Goncharov,Brown Kari Vilonen,NorthwesternUniversity University 10:00AM Introduction to the Geometric Langlands Mikhail Kapranov,YaleUniversity
(95) Correspondence. Yuri Manin,MaxPlanck Institute for Edward Frenkel,UniversityofCalifornia, Berkeley Mathematics (1001-14-254)

Appendix–36 NOTICES OF THE AMS VOLUME 51, NUMBER 9 Evanston, IL, Saturday, October 23 –ProgramoftheSessions

Invited Address 4:00PM The Tiger fountain problem. Preliminary report. (105) Carmen Chicone,UniversityofMissouri-Columbia 11:40 AM – 12:30 PM Auditorium, Technological Institute (1001-76-139) (96) Fractional dimensions in geometry and algebra. 4:30PM Break Yuri Manin,NorthwesternUniversity 5:00PM Viscous and Viscoelastic Potential Flow. (106) Daniel D. Joseph,UniversityofMinnesota AMS Special Presentation, Part II (1001-35-242) 5:30PM PROST: a Parabolic Reconstruction Of Surface 1:00 PM –2:00PM Room L 170, Technological Institute (107) Tension for the volume-of-fluid method. Yuriko Renardy,Department of Mathematics, TA Development using case studies: A workshop for Virginia Tech (1001-76-17) faculty Organizer: Diane Herrmann,Universityof Special Session on Iterated Function Systems and Chicago Analysis on Fractals, II

Invited Address 3:00 PM –5:50PM Room L 160, Technological Institute 2:00 PM –2:50PM Auditorium, Technological Institute Organizers: Ka-Sing Lau,Chinese University of Hong Kong
(97) The geometry and topology of reconfiguration. Robert Ghrist,University of Illinois, Stephen S.-T. Yau,University of Illinois Urbana-Champaign, Mathematics (1001-68-396) at Chicago 3:00PM Some good news about those gaps in the spectrum Special Session on Differential Geometry, II (108) of the Laplacian on certain fractals. Robert S. Strichartz,MathDept, Cornell Univ, 3:00 PM –5:50PM Room MG 28, Technological Institute (1001-28-42) 3:30PM Self-similar Dirichlet forms on p.c.f. fractals. Organizers: Anders Ingemar Linner,Northern
(109) ,UniversityofOxford, , Illinois University B. M. Hambly V. Metz Bielefeld University, and A. Teplyaev*, University of Hongyou Wu,Northern Illinois Connecticut (1001-46-410) University 4:00PM Local structures and differentiation on fractals. 3:00PM Positive harmonic function on open manifolds with (110) Martina C. Za¨hle,MathematicalInstitute, University (98) non-positive curvature. of Jena, Germany (1001-28-78) Jianguo Cao*, University of Notre Dame,, Huijun 4:30PM Measurable Riemannian geometry on a self-similar Fan,PekingUniversity, and Francois Leddreppier, Univeristy of Notre Dame (1001-58-220) (111) set, energy measue and heat kernel estimate. Jun Kigami,GraduateSchool of Informatics, Kyoto 3:30PM K-Surfaces (smooth and discrete) of non-finite type. University (1001-31-47) (99) Preliminary report. 5:00PM Quasisymmetric and quasiconformal equivalence of Ivan Charles Sterling,StMary’s College of Maryland (1001-53-265) (112) post-critically finite self-similar sets. Jeremy T. Tyson*andJang-Mei G. Wu,University 4:00PM Soliton surfaces in the mechanical equilibrium of of Illinois (1001-30-142) (100) closed membranes. 5:30PM Entropy spectrum of Banach valued Birkhoff Brian Smyth,UniversityofNotreDame (1001-53-271) (113) ergodic average. Preliminary report. Ai-hua Fan,Picardie University (1001-37-150) 4:30PM Spectral properties of the Fourier-Mukai transform. (101) James F. Glazebrook*, Eastern Illinois University Special Session on Algebraic Topology: Interactions and University of Illinois at Urbana-Champaign, Marcos Jardim,IMECC-UNICAMP, Campinas, Brazil, with Representation Theory and Algebraic Geometry, and Franz W. Kamber,University of Illinois at II Urbana-Champaign (1001-58-15) 3:00 PM –5:50PM Room LG 68, Technological Institute 5:00PM Dupin hypersurfaces with four principal (102) curvatures. Preliminary report. Organizers: Paul G. Goerss,Northwestern Thomas E Cecil,College of the Holy Cross, University Quo-Shin Chi and Gary R Jensen*, Washington Jesper Kragh Grodal,Universityof University (1001-53-238) Chicago Brooke E. Shipley,University of Illinois Special Session on Stability Issues in Fluid Dynamics, at Chicago II 3:00PM On conformal field theories and dessins d’enfants. 3:00 PM –5:50PM Room L R4, Technological Institute (114) Preliminary report. Po Hu,Wayne State University (1001-55-367) Organizers: Susan J. Friedlander,Universityof 3:30PM Orbifolds and Stable Equivariant Homotopy Groups. Illinois at Chicago (115) Preliminary report. Roman Shvydkoy,University of Illinois Johann K Leida,Univ.ofWisconsin-Madison at Chicago (1001-55-179) 3:00PM Regularity of Variational Weak Solutions of the 4:00PM Complete Segal spaces as models for simplicial (103) Euler Equations. (116) categories. Preliminary report. Alexander Shnirelman,ConcordiaUniversity, Julie Bergner,UniversityofNotreDame Montreal (1001-35-424) (1001-55-99) 3:30PM Are viscoelastic flows under control or out of 4:30PM The p-adic K-theory oftheBousfield-Kuhn Functor. (104) control? (117) Kristen Joy Schemmerhorn,Albion College Michael Renardy,Virginia Tech (1001-76-10) (1001-55-231)

OCTOBER 2004 NOTICES OF THE AMS Appendix–37 Program of the Sessions – Evanston, IL, Saturday, October 23 (cont’d.)

5:00PM Alocalization sequence for K(ku). Special Session on Spectral Problems of Differential (118) Andrew J. Blumberg,UniversityofChicago Operators, II (1001-19-337) 5:30PM Computations for Toroidal Orbifolds. Preliminary 3:00 PM –6:20PM Room M 128, Technological Institute (119) report. Organizers: Qingkai Kong,Northern Illinois AAdem*, University of Wisconsin, and JPan, University Academia Sinica (1001-20-133) Hongyou Wu,Northern Illinois University Special Session on Nonlinear Waves, II Anton Zettl,Northern Illinois University 3:00 PM –5:50PM Room L R2, Technological Institute 3:00PM Continuous Families of Complete, Negatively (131) Curved Metrics with the Same Scattering Data. Organizers: Jerry L. Bona,University of Illinois at Peter A. Perry*, University of Kentucky, and Chicago Dorothee Schueth,Humboldt-Universita¨t zu Berlin Shuming Sun,VirginiaPolytechnic (1001-35-349) Institute and State University 4:00PM On the spectrum of the Euler equations. Bingyu Zhang,UniversityofCincinnati (132) Susan Friedlander,University of Illinois-Chicago 3:00PM Special solutions of a Boussinesq system. (1001-76-87)
(120) Preliminary report. 5:00PM Detour torsion. Min Chen,Purdue University (1001-76-280) (133) Thomas Branson*, University of Iowa, and A. Rod 3:30PM The Existence of Three Dimensional Localized Gover,University of Auckland (1001-53-300) (121) Waves. 6:00PM Asymptotic expansions of the eigenvalues of Shu-Ming Sun*, Virginia Tech, and Mark Groves, (134) anharmonic oscillators. Preliminary report. Loughborough University, UK (1001-76-278) Kwang C. Shin,UniversityofMissouri-Columbia 4:00PM Control of the surface of water by a wavemaker. (1001-34-393) (122) Lionel Rosier,Institut Elie Cartan de Nancy (1001-76-190) 4:30PM On the variational characterization of KdV (123) multi-solitons. Preliminary report. Special Session on Geometric Aspects of the John P. Albert*, University of Oklahoma, Jerry L. Langlands Program, II Bona,University of Illinois at Chicago, and Nghiem V. Nguyen,University of Oklahoma (1001-35-279) 3:00 PM –4:50PM Room L 251, Technological Institute 5:00PM Decay of Solutions for Some Nonlinear Partial
(124) Differential Equations. Preliminary report. Organizers: Edward Frenkel,Universityof California Berkeley Jerry Bona,University of Illinois at Chicago, USA, Thanasis Fokas,UniversityofCambridge, UK, and Dennis Gaitsgory,Universityof Laihan Luo*, Richard Stockton College of New Chicago Jersey, USA (1001-35-261) Mark Goresky,Institute for Advanced 5:30PM Generalized Poincar´e–Hopf bifurcation and Study (125) galloping instability of traveling waves. Kari Vilonen,NorthwesternUniversity Benjamin Texier*andKevin Zumbrun,Indiana 3:00PM On de Jong’s conjecture. University (1001-35-308) (135) Dennis Gaitsgory,TheUniversity of Chicago (1001-11-268) Special Session on Mathematical Problems in 4:00PM Real groups and the geometric Langlands program. (136) David Nadler,University of Chicago (1001-14-296) Robotics, II

3:00 PM –5:45PM Room A 110, Technological Institute Organizer: Robert W. Ghrist,University of Illinois Special Session on Applications of Motives, II at Urbana-Champaign 3:00 PM –5:50PM Room L 211, Technological Institute 3:00PM Topology in Motion Planning. (126) Howie Choset*andAlfred A Rizzi,Carnegie Organizers: Eric M. Friedlander,Northwestern Mellon (1001-54-51) University 3:30PM Minimum-Switch Motion Planning with a Discrete Alexander Goncharov,Brown
(127) Set of Vector Fields. Preliminary report. University Kevin M Lynch,NorthwesternUniversity (1001-93-196) Mikhail Kapranov,YaleUniversity 4:00PM Pursuit-evasion in complex environments: from Yuri Manin,MaxPlanck Institute for
(128) graphs to polygons. Mathematics Volkan Isler,UniversityofPennsylvania 3:00PM Motivic fundamental groups and Feynman (1001-05-100) (137) integrals. Preliminary report. 4:30PM New results in topological robotics. Preliminary Alexander Goncharov,BrownUniversity (129) report. (1001-14-124) SYuzvinsky,University of Oregon (1001-55-182) 4:00PM Representations of p-adic groups and Chow 5:00PM Control of Shape and Distribution for Swarming (138) motives. Preliminary report. (130) Behaviors. Preliminary report. Julia Gordon,University of Toronto (1001-14-125) Luiz Chaimowicz and Vijay Kumar*, GRASP Lab. - 5:00PM Floer homology of ind-schemes. Preliminary report. University of Pennsylvania (1001-93-253) (139) Mikhail Kapranov,Yale University (1001-14-127)

Appendix–38 NOTICES OF THE AMS VOLUME 51, NUMBER 9 Evanston, IL, Saturday, October 23 –ProgramoftheSessions

Special Session on Algebraic Representations and 3:30PM Distinguished supercuspidal representations. Deformations, II (152) Preliminary report. Jeffrey Hakim,AmericanUniversity, and Fiona 3:00 PM –5:50PM Room LG 52, Technological Institute Murnaghan*, University of Toronto (1001-22-155) 4:00PM Uniqueness of minimal representation. Preliminary Organizers: Stephen R. Doty,Loyola University of (153) report. Chicago Gordan Savin,University of Utah (1001-22-130) Anthony Giaquinto,Loyola University 4:30PM Distinguished, but not even. of Chicago (154) Stephen DeBacker,UniversityofMichigan 3:00PM Results on the peak algebra of the symmetric group (1001-22-406) (140) algebra. 5:00PM On the Theta Correspondences for U(1) and the Kathryn Nyman*, Loyola University Chicago, (155) Quasi-split U(2). Preliminary report. Marcelo Aguiar,TexasA&MUniversity, and Rosa Ryan Stuffelbeam,Boston College (1001-22-249) Orellana,Dartmouth College (1001-05-434) 3:30PM Extensions, Levi subgroups, and Lusztig (141) conjectures. Special Session on Low-Dimensional Topology and Leonard Scott,TheUniversity of Virginia Kleinian Groups, II (1001-20-266) 4:00PM Representation type of Schur superalgebras. 3:00 PM –5:50PM Room LG 76, Technological Institute
(142) David J Hemmer*, University of Toledo, Jonathan Kujawa and Daniel Nakano,UniversityofGeorgia Organizers: Ian Agol,University of Illinois at (1001-20-210) Chicago 4:30PM On the ”q to -q” phenomenon. Preliminary report. John Holt,University of Illinois at (143) Bhama Srinivasan,University of Illinois at Chicago Chicago (1001-20-382) Saul Schleimer,University of Illinois at 5:00PM Quantized hyperalgebras of rank one. Chicago (144) William Chin*andLeonid Krop,DePaulUniversity 3:00PM Noncyclic covers of knot complements. (1001-16-263) (156) Nathan Darrell Broaddus,CornellUniversity 5:30PM Quantum- and Quasi-Plucker¨ Coordinates. (1001-57-55) (145) Aaron Lauve,RutgersUniversity–New Brunswick 3:30PM Quasiconformal homogeneity of hyperbolic (1001-16-24) (157) manifolds. Dick Canary,University of Michigan (1001-00-433) Special Session on Modern Schubert Calculus, II 4:00PM Cusp Shapes of Hyperbolic Link Complements. (158) Jessica S Purcell,UniversityofTexas at Austin (1001-57-275) 3:00 PM –5:20PM Room G 44, Donald P. Jacobs Center 4:30PM Group Actions and Codimension One Foliations. Organizers: Ezra Miller,UniversityofMinnesota (159) Sergio Fenley,FloridaStateUniversity, and Rachel Frank Sottile,TexasA&MUniversity Roberts*, Washington University (1001-57-415) 3:00PM Experimentation in real Schubert calculus for flag 5:00PM Closed Essential Surfaces in the Complements of (146) manifolds. Preliminary report. (160) Large Volume Berge Knots. James Ruffo,TAMU,Yuval Sivan, Evgenia Ken Baker,TheUniversityofGeorgia at Athens Soprunova*, University of Massachusetts, Amherst, (1001-57-379) and Frank Sottile,TAMU (1001-14-273) 5:30PM Cohomology constructions for hyperbolic knot and 3:30PM Applying Pieri Homotopies to compute dynamic (161) link complements. (147) output feedback laws. Anneke Bart and Kevin P. Scannell*, Saint Louis Yusong Wang*andJan Verschelde,Universityof University (1001-57-365) Illinois at Chicago (1001-12-194) 4:00PM Lower bounds in some problems of real Schubert
(148) calculus. Preliminary report. Special Session on Special Functions, Orthogonal Alexandre Eremenko and Andrei Gabrielov*, Polynomials, and their Applications, II Purdue University (1001-14-65) 3:00 PM –5:25PM Room L 158, Technological Institute 4:30PM Tranversality of non-general Schubert cycles. (149) Brian Osserman,UniversityofCalifornia, Berkeley Organizers: George Gasper,Northwestern (1001-14-223) University 5:00PM Quantum cohomology of isotropic Grassmannians. Ahmed I. Zayed,DePaulUniversity (150) Harry Tamvakis,Brandeis University (1001-14-230) 3:00PM Ramanujan Continued Fractions and Orthogonal (162) Polynomials. Special Session on Representation Theory of Mourad E H Ismail*, University of Central Florida, Reductive Groups, II Orlando, FL 33218, and Dennis Stanton, School of Mathematics, University of Minnesota 3:00 PM –5:20PM Room LG 66, Technological Institute (1001-33-315) 3:30PM Aconditionally convergent double series of ordinary Organizers: Jeffrey D. Adler,UniversityofAkron (163) Bessel functions in Ramanujan’s lost notebook. Ju-Lee Kim,University of Illinois at Bruce C. Berndt,University of Illinois at Chicago Urbana-Champaign (1001-33-241) 3:00PM Equivalence of Data Parametrizing Tame 4:00PM On Generalizations of Certain Well–Known q–series (151) Supercuspidal Representations. (164) Identities Associated to Root Systems. Jeffrey L Hakim,AmericanUniversity Hasan Coskun,TexasA&MUniversity-Commerce (1001-22-282) (1001-33-163)

OCTOBER 2004 NOTICES OF THE AMS Appendix–39 Program of the Sessions – Evanston, IL, Saturday, October 23 (cont’d.)

4:30PM Poisson Kernel for the associated continuos q- Special Session on Extremal Combinatorics, II (165) Jacobi Polynomials. Preliminary report. Mizan Rahman,CarletonUniversity, and Tariq M 3:00 PM –5:20PM Room G 36, Donald P. Jacobs Center Qazi*, Virginia State University (1001-33-151) Organizers: Dhruv Mubayi,University of Illinois at 5:00PM Summation, transformation, and expansion Chicago (166) formulas for elliptic, modular, and theta hypergeometric series. Preliminary report. Yi Zhao,University of Illinois at George Gasper,NorthwesternUniversity Chicago (1001-33-30) 3:00PM Incidence matrices and a zero-sum Ramsey-type (176) problem. Special Session on Mathematical Techniques in Richard M Wilson,Department of Mathematics, California Institute of Technology (1001-05-343) Musical Analysis, II 3:30PM Extremal Problems for Linear Dependences.
3:00 PM –5:40PM Auditorium, Technological Institute (177) Jacques A Verstraete,UniversityofWaterloo (1001-05-181) Organizers: Judith Baxter,University of Illinois at 4:00PM Listening for Perfect Matchings in Bipartite Graphs. Chicago (178) Preliminary report. Richard Cohn,UniversityofChicago Andre E Kezdy,University of Louisville Robert Peck,Louisiana State University (1001-05-140) 3:00PM Wreath Products, n-Cubes, and Musical 4:30PM Creating a giant component.
(167) Voice-Leading. Preliminary report. (179) Tom Bohman*andDavid Kravitz,CarnegieMellon Jack M Douthett*, TVI Commubity College, and University (1001-05-394) Richard Hermann,UniversityofNewMexico 5:00PM Large graphs with bounded degree and no long (1001-20-212) (180) induced path. 4:00PM The Algebra of Minimal Voice Leading among Myung S Chung,NationalInstitutes of Health, Tao
(168) Triads of All Species. Preliminary report. Jiang,MiamiUniversity of Ohio, and Douglas B Ian Quinn,Department of Music, Yale University West*, University of Illinois (1001-05-177) (1001-00-409) 5:00PM Minimal Voice-leading.
(169) Dmitri Tymoczko,PrincetonUniversity Special Session on Index Theory, Morse Theory, and (1001-05-156) the Witten Deformation Method, II

Special Session on Hopf Algebras at the Crossroads 3:00 PM –5:45PM Room L 221, Technological Institute of Algebra, Category Theory, and Topology, II Organizers: Igor Prokhorenkov,TexasChristian University 3:00 PM –5:50PM Room G 45, Donald P. Jacobs Center Ken Richardson,TexasChristian Organizers: Louis H. Kauffman,Universityof University Illinois at Chicago 3:00PM Morse inequalities for orbit spaces. David E. Radford,University of Illinois (181) Jesus´ A. Alvarez´ Lopez´ *andManuel Calaza at Chicago Cabanas,UniversidadedeSantiago de Compostela Fernando J. O. Souza,Universityof (1001-58-209) Iowa 4:00PM Laplace Transforms, Dynamics and Spectral 3:00PM Parametrization of simple modules for the (182) Geometry. (170) Quantum double of Frobenius-Lusztig kernels. Dan Burghelea*, OSU, Columbus, OH, and Stefan Leonid Krop*, Department of Mathematical Haller,Depatmentofmathematics, University of Sciences, DePaul University, and David E Radford, Vienna (1001-58-189) Department of Mathematics, Statistics and 5:00PM The geometric complex of a Morse–Bott–Smale pair Computer Science, University of Illinois at Chicago (183) and an extension of a theorem by Bismut–Zhang. (1001-16-148) Dan Burghelea,TheOhioStateUniversity, and 3:30PM ALeftQuantum Group. Stefan Haller*, University of Vienna (1001-57-111) (171) Suemi Rodriguez-Romo,Universidad Nacional Autonoma de Mexico, and Earl J. Taft*, Rutgers University (1001-16-56) Special Session on Fluid Dynamics, Diffusion and 4:00PM ANewLie Bialgebra Structure on sl(2, 1). Reaction, II (172) Gizem Karaali,UniversityofCalifornia, Santa Barbara (1001-17-285) 3:00 PM –5:50PM Room M 177, Technological Institute 4:30PM Representations of the Hopf algbera U(n). Organizers: ,Universityof (173) Preliminary report. Peter S. Constantin Chicago Mitsuhiro Takeuchi,UniversityofTsukuba, Institute of Mathematics (1001-16-188) Leonid V. Ryzhik,Universityof Chicago 5:00PM Hopf-algebraic approach to super affine groups and (174) super formal groups. Preliminary report. 3:00PM Symmetry and related properties of positive Akira Masuoka,UniversityofTsukuba, Institute of (184) solutions of parabolic equations on RN . Mathematics (1001-16-187) Peter Polacik,School of Mathematics, University of 5:30PM Representations of quantum groups: constructions Minnesota (1001-35-144) (175) and characters from a Hopf algebraic point of view. 4:00PM Bulk diffusion for interacting random walks in Marc Rosso,Departement de Mathematiques et (185) random media. Applications, Ecole Normale Superieure, Paris, Jeremy Quastel,UniversityofToronto France (1001-20-353) (1001-35-176)

Appendix–40 NOTICES OF THE AMS VOLUME 51, NUMBER 9 Evanston, IL, Saturday, October 23 –ProgramoftheSessions

5:00PM Jacobian estimates for Ginzburg-Landau 5:30PM APoincareinequality on Rn and its application to (186) functionals, and applications. (198) potential fluid flows. Robert Jerrard,UniversityofToronto Guozhen Lu,WayneState University, and Biao Ou*, (1001-35-311) University of Toledo (1001-35-41)

Special Session on Codes and Applications, II Special Session on Geometric Partial Differential 3:00 PM –5:50PM Room G 42, Donald P. Jacobs Center Equations, I Organizers: William C. Huffman,Loyola University 3:00 PM –5:55PM Room L R5, Technological Institute of Chicago Vera S. Pless,University of Illinois at Organizers: Gui-Qiang Chen,Northwestern Chicago University 3:00PM Parametrization of Self-Dual Binary Codes. Jared Wunsch,Northwestern (187) Preliminary report. University Gerald J. Janusz,University of Illinois at 3:00PM Geometric optics and the wave equation on Urbana-Champaign (1001-94-32) (199) manifolds with corners. 3:30PM On the Order of the Automorphism Group of a Andras Vasy,NorthwesternUniversity/ MIT (188) Putative Extremal Code Vassil Yorgov. Preliminary (1001-58-48) report. 3:30PM The normal trace of vector fields with weak Vassil Yorgov,Fayetteville State University (200) divergences. Preliminary report. (1001-94-60) William P. Ziemer,Indiana University 4:00PM Formally self-dual even codes of length divisible by (1001-76-120) (189) 8. 4:00PM Local pointwise and Harnack estimates for Jon-Lark Kim*, University of Nebraska – Lincoln, (201) solutions of the σk curvature equation. and Vera Pless,University of Illinois–Chicago Zheng-Chao Han,RutgersUniversity,Piscataway, (1001-94-251) NJ (1001-35-200) PM 4:30 On the doublecirculant presentation of the binary 4:30PM Solutions of Tricomi Equations. (190) extended quadratic residue code. Preliminary (202) Qing Han,Department of Mathmetics, University of report. Notre Dame (1001-35-85) Mona Musa,Southern Illinois University at Edwardsville (1001-94-335) 5:00PM Sharp local embedding inequalities. (203) Junfang Li and Meijun Zhu*, University of 5:00PM Negacyclic Duadic Codes. Preliminary report. Oklahoma (1001-35-83)
(191) Tom Blackford,Western Illinois University (1001-05-27) 5:30PM Motion of Surfaces by Curvature. (204) Gieri Simonett,Vanderbilt University 5:30PM Focused aperiodic correlation and binary phase (1001-35-225) (192) shaping. Preliminary report. Jonathan I. Hall,Department of Mathematics, Michigan State University (1001-94-191) Special Session on Computability Theory and Special Session on Nonlinear Partial Differential Applications, II Equations and Applications, II 3:00 PM –5:50PM Room G 03, Donald P. Jacobs Center 3:00 PM –5:55PM Room L R3, Technological Institute Organizers: Robert I. Soare,UniversityofChicago Organizers: Gui-Qiang Chen,Northwestern Denis R. Hirschfeldt,Universityof University Chicago Mikhail Feldman,Universityof 3:00PM On Downey’s Conjecture. Preliminary report. Wisconsin at Madison (205) Marat M. Arslanov, Iskander Sh. Kalimullin, 3:00PM Bifurcation and Stability for Ginzburg-Landau Kazan State University, and Steffen Lempp*, (193) Model of Superconductivity. University of Wisconsin–Madison (1001-03-132) Tian Ma,Indiana University and Sichuan University, 3:30PM The initial segment complexity of random reals. and Shouhong Wang*, Indiana University
(206) Joseph S. Miller*, Indiana University Bloomington, (1001-35-407) and Liang Yu,Victoria University of Wellington 3:30PM Global Solvabilty for a Nonlinear Maxwell’s (1001-03-183) (194) Equation in Quasistationary Electromagnetic Fields. 4:00PM Degree Spectra of Homogeneous Models. Hong-Ming Yin*, Washington State University, and (207) Karen M. Lange,UniversityofChicago Wei Wei,Guizhou University (1001-35-211) (1001-03-180) 4:00PM Free boundary problems for quasilinear degenerate 4:30PM Computability Theory and Logic Programming. (195) equations.
(208) Preliminary report. Eun Heui Kim,California State University Long Douglas Cenzer*, University of Florida, and Jeffrey Beach (1001-35-372) Remmel,UniversityofCalifornia at San Diego 4:30PM On the pointwise jump condition of the free (1001-03-138) (196) boundary in the 1-phase Stefan problem. 5:00PM Degrees of Saturated Models. Preliminary report. Preliminary report. (209) Kenneth A. Harris*, Denis R. Hirschfeldt Donatella Danielli*, Purdue University, and and Robert I. Soare,UniversityofChicago Marianne Korten,KansasState University (1001-03-205) (1001-35-385) 5:30PM Effectively and Relatively Effectively Categorical 5:00PM Obstacle problem in Carnot groups of step 2. (210) Structures. (197) Arshak Petrosyan,PurdueUniversity Valentina Harizanov,GeorgeWashington (1001-35-267) University (1001-03-162)

OCTOBER 2004 NOTICES OF THE AMS Appendix–41 Program of the Sessions – Evanston, IL, Saturday, October 23 (cont’d.)

Special Session on Solving Polynomial Systems, II Sunday, October 24 3:00 PM –5:50PM Room G 43, Donald P. Jacobs Center Meeting Registration Organizers: Anton Leykin,University of Illinois at Chicago 7:30 AM – NOON Lobby, Technological Institute Jan Verschelde,University of Illinois at Chicago AMS Exhibit and Book Sale 3:00PM Soprunova Room G 44 3:30PM Wang Room G 44 7:30 AM – NOON Room L 150, Technological Institute 4:00PM Break 4:30PM An Algebraic Method for Analyzing Dynamic Special Session on Algebraic Topology: Interactions (211) Systems. with Representation Theory and Algebraic Geometry, Wenqin Zhou*, Applied Mathmatics Department, Unversity of Western Ontario, London, Ontario, III Greg Reid and David Jeffrey,UniversityofWestern 8:00 AM –10:50AM Room LG 68, Technological Institute Ontario (1001-34-95) 5:00PM On Polynomial Gcds over Direct Products of Fields Organizers: Paul G. Goerss,Northwestern (212) Given by Towers of Simple Extensions. University Marc Moreno Maza*, University of Western Ontario, Jesper Kragh Grodal,Universityof Boulier,University of Lille 1 (France), and Oancea, Chicago University of Western Ontario (1001-12-401) Brooke E. Shipley,University of Illinois 5:30PM An Exact Toric Resultant-Based RUR Approach for at Chicago (213) Solving Polynomial Systems. 8:00AM Some connected covers of the specturm tmf(3). Koji Ouchi*andJohn Keyser,Department of (223) Mark Mahowald*, Northwestern University, and Computer Science, Texas A&M University Charles Rezk,University of Illinois (1001-55-325) (1001-68-204) 8:30AM Algebraic K-theory and sums-of-squares formulas. (224) Daniel C Isaksen*, Wayne State University, and Daniel Dugger,University of Oregon (1001-55-171) Session for Contributed Papers 9:00AM Iterated homotopy fixed point spectra for the 3:00 PM –5:10PM Room L 168, Technological Institute (225) Lubin-Tate spectrum. Preliminary report. Daniel G. Davis,Purdue University (1001-55-281) 3:00PM Classification of simply connected 4-dim Einstein Lie 9:30AM Free p–group actions on products of spheres. (214) groups. (226) Ozg¨ un¨ Unl¨ u¨,McMaster University (1001-57-310) Thomas Edward Poole,LaTrobeUniversity Australia (1001-53-68) 10:00AM Dyer-Lashof operations inthestring topology of (227) spheres and projective spaces. 3:15PM Intrinsically Linked Graphs with Knotted Craig Westerland,Institute for Advanced Study
(215) Components. Preliminary report. (1001-55-64) Thomas Fleming,UniversityofCalifornia, San Diego (1001-57-31) 10:30AM Representation- and character theory in (228) 2-categories. 3:30PM Explicit Evaluations of a Class of Double L-values. Nora Ganter*, UIUC, and Mikhail Kapranov,Yale
(216) David A. Terhune,Pennsylvania State University (1001-55-322) (1001-11-20) 3:45PM Relative Randomness and Real Closed Fields.
(217) Preliminary report. Special Session on Solving Polynomial Systems, III Alexander Raichev,Universityof Wisconsin-Madison (1001-03-06) 8:00 AM – 11:20 AM Room G 43, Donald P. Jacobs Center 4:00PM Inductive logic of the genetic code. Organizers: Anton Leykin,University of Illinois at
(218) Dennis F. Cudia,none (1001-92-79) Chicago 4:15PM Open Formulas of Runge-Kutta Method. Jan Verschelde,University of Illinois at (219) Maitree Podisuk,FacultyofScience KMITL Chicago Ladkrabang Bangkok 10520 Thailand 8:00AM The maximum likelihood degree and the likelihood (1001-65-149) (229) equations. 4:30PM Properties of the von Neumann-Kakutani adding Fabrizio Catanese,UniversitaetBayreuth, (220) machine transformation. Serkan Hosten*, San Francisco State University, Dmitriy V Akimov,NorthDakota State University Mathematics Department, Amit Khetan,University (1001-37-332) of Massachusetts, Amherst, and Bernd Sturmfels, 4:45PM Constraint Preserving Boundary Conditions for a University of California, Berkeley (1001-14-164) (221) Hyperbolic Formulation of Einstein’s Equations. 8:30AM Reconstructing dynamical systems from their zeta Nicolae Tarfulea,UniversityofMinnesota - Purdue
(230) functions. University Calumet (1001-35-33) Christopher J Hillar,U.C. Berkeley (1001-12-121) 5:00PM 2D Quasi-Geostrophic Equations. 9:00AM Resultants of Sparse Polynomials and Toric (222) Ning Ju,Oklahoma State University (1001-35-37) (231) Vanishing Theorems. Amit Khetan,UniversityofMassachusetts Amherst (1001-14-57) Reception Hosted by the Department of Mathematics 9:30AM On Smale’s 6th Problem: A solution in the four-body (232) case. 6:00 PM –7:00PM Guild Lounge, Scott Marshall E Hampton*andRichard Moeckel, Hall, 601 University Ave University of Minnesota (1001-37-119)

Appendix–42 NOTICES OF THE AMS VOLUME 51, NUMBER 9 Evanston, IL, Sunday, October 24 –ProgramoftheSessions

10:00AM Cellular Exclusion Algorithms for Polynomial 10:00AM Existence and stability of periodic travelling-wave
(233) Systems. (244) solutions of the Benjamin equation. Preliminary Eugene L. Allgower*, Colorado State University, report. and Kurt Georg,deceased (1001-65-195) Borys Alvarez*, University of Illinois at Chicago, 10:30AM Solving the Polynomial Equations of the Geometric and Jaime Angulo,IMECC-UNICAMP, Brazil (234) Design Problem of the Spatial 3R Mechanisms. (1001-35-58) Eric C Lee*andConstantinos Mavroidis, 10:30AM Higher-Order Stability of Solitary Waves. Northeastern University (1001-14-421) (245) Nghiem V. Nguyen*, University of Oklahoma/ 11:00AM Using Polynomial Homotopy Method to Mechanism Purdue University, John P. Albert,Universityof
(235) Synthesis. Oklahoma, Jerry L. Bona,University of Illinois at Hai-Jun Su,UniversityofCalifornia, Irvine Chicago, and Yue Liu,UniversityofTexas at (1001-08-129) Arlington (1001-35-304) 11:00AM Asymptotic Stability of Nonlinear Schrodinger¨ (246) Equations with Potential. Special Session on Iterated Function Systems and Gang Zhou*andIMSigal,UniversityofNotre Analysis on Fractals, III Dame & University of Toronto (1001-35-376)

8:30 AM –10:50AM Room L 160, Technological Institute Special Session on Mathematical Problems in Organizers: Ka-Sing Lau,Chinese University of Robotics, III Hong Kong Stephen S.-T. Yau,University of Illinois 8:30 AM –10:45AM Room A 110, Technological Institute at Chicago Organizer: Robert W. Ghrist,University of Illinois 8:30AM Gaussian Random Fields and Salem Sets. (236) Preliminary report. at Urbana-Champaign Yimin Xiao,Michigan State University (1001-60-81) 8:30AM Braid groups of graphs: some new results.
(247) Preliminary report. 9:00AM Absolute continuity for IFS with random maps. (237) Preliminary report. Aaron D. Abrams,MSRIandEmoryUniversity Yuval Peres,UniversityofCalifornia, Berkeley, (1001-57-402) K´aroly Simon,Technical University of Budapest, 9:00AM Protein Similarity from Isotopic Line Weavings. and Boris Solomyak*, University of Washington
(248) Michael A. Erdmann,CarnegieMellon University (1001-37-74) (1001-92-213) 9:30AM General finite type IFS and M-matrix. Preliminary 9:30AM Optimal Robot Navigation Without Measuring (238) report. (249) Distances. Stephen S.T. Yau*, Dept. of Math. Stat. & Computer Steven M. LaValle*, Benjamin Tovar, Luis Sci., University of Illinois at Chicago, and Ning Jin, Guilamo and Rafael Murrieta,University of Illinois Dept. of Math., Nanjing University, China at Urbana-Champaign (1001-68-364) (1001-37-11) 10:00AM Algorithms for Neural Prosthetics. Preliminary 10:00AM Ageneralized finite type condition for iterated
(250) report. (239) function systems. Joel W Burdick,California Institute of Technology Ka-Sing Lau,Department of Mathematics, The (1001-92-370) Chinese University of Hong Kong, and Sze-Man Ngai*, Department of Mathematical Sciences, Georgia Southern University (1001-28-112) Special Session on Algebraic Representations and 10:30AM Asymptotical Geometry of Cantor Systems. Deformations, III (240) Yunping Jiang,CUNY/CAS (1001-37-77) 8:30 AM –10:50AM Room LG 52, Technological Institute Organizers: Stephen R. Doty,Loyola University of Special Session on Nonlinear Waves, III Chicago

8:30 AM – 11:20 AM Room L R2, Technological Institute Anthony Giaquinto,Loyola University of Chicago Organizers: Jerry L. Bona,University of Illinois at 8:30AM The Noncommutative Ward Correspondence. Chicago (251) Preliminary report. Shuming Sun,VirginiaPolytechnic K. C. Hannabuss,Balliol College, University of Institute and State University Oxford, and S. J. Brain*, St Cross College, Bingyu Zhang,UniversityofCincinnati University of Oxford (1001-51-260) 8:30AM On the persistence of KdV solitons in the unstable 9:00AM Applications of the path model. Preliminary report. (241) dynamics of inclined film flow. Preliminary report.
(252) Arun Ram,Department of Mathematics, University Robert L Pego*, Carnegie Mellon University, Guido of Wisconsin, Madison (1001-17-269) Schneider and Hannes Uecker,Mathematisches 9:30AM New examples of quantum P3 with finitely many Institut I, Universit¨at Karlsruhe (1001-35-357) (253) points. 9:00AM Stability of solitary-wave solutions for the Ostrovsky Darin R. Stephenson*, Hope College, and Michaela
(242) equation with weak rotation. Preliminary report. Vancliff,UniversityofTexas at Arlington Yue Liu,UniversityofTexas at Arlington (1001-16-229) (1001-35-50) 10:00AM An Algebro-Geometric Method for Constructing 9:30AM Long-time Soliton Dynamics of Variable Bottom (254) Clifford Quantum P3swithaPredetermined Finite (243) KdVs. Point Scheme. Preliminary report. Steven Ivan Dejak*, University of Toronto, Toronto, Darin R Stephenson,HopeCollege, MI, and Canada, and I. M. Sigal,UniversityofNotreDame Michaela Vancliff*, Univ. of Texas at Arlington and University of Toronto (1001-35-377) (1001-16-250)

OCTOBER 2004 NOTICES OF THE AMS Appendix–43 Program of the Sessions – Evanston, IL, Sunday, October 24 (cont’d.)

10:30AM Flat Monoids and Deformations of a Semisimple 8:30AM Optimal Graph Labellings: Edge-bandwidth of (255) Group. Preliminary report. (264) graphs. Lex E. Renner,UniversityofWestern Ontario Jozsef Balogh*, The Ohio State University, (1001-20-110) Columbus, OH, Dhruv Mubayi,University of Illinois at Chicago, and Andras Pluhar,Universityof Szeged, Szeged, Hungary (1001-05-303) Special Session on Mathematical Techniques in 9:00AM Channel Assignments for Infinite Graphs. Musical Analysis, III (265) Preliminary report. Jerrold R. Griggs*andXiaohua Teresa Jin, 8:30 AM – 11:20 AM Auditorium, Technological Institute University of South Carolina (1001-05-247) Organizers: Judith Baxter,University of Illinois at 9:30AM On colored arithmetic progressions. Chicago (266) Maria Axenovich,IowaState University Richard Cohn,UniversityofChicago (1001-05-154) Robert Peck,Louisiana State University 10:00AM The Steiner Probleminthehypercube. Preliminary (267) report. 8:30AM Discussion Tao Jiang*andDan Pritikin,MiamiUniversity, 9:30AM From Rhythmic Canons to Fuglede’s conjecture. Oxford, Ohio (1001-05-136) (256) Emmanuel Amiot,Perpignan,France (1001-12-114) 10:30AM Convex crossing numbers, circular arrangement (268) problem, and isoperimetric functions. 10:30AM Measuring Musical Dissimilarity: First and Second
Eva Czabarka,College of William & Mary, Ondrej (257) Order Center of Effect (CE) Differences Inside the Sykora,LoughboroughUniversity, Laszlo Szekely*, Spiral Array. Preliminary report. University of South Carolina, and Imrich Vrto, Elaine Chew,UniversityofSouthern California Institute of Informatics, Slovak Academy of Sciences Viterbi School of Engineering, Epstein Dep of (1001-05-197) Industrial and Systems Engineering (1001-15-416) 11:00AM Families with forbidden inclusion pattern. (269) Preliminary report. Special Session on Hopf Algebras at the Crossroads Gyula O.H. Katona,UniversityofSouth Carolina, of Algebra, Category Theory, and Topology, III Columbia, SC and R´enyi Institute, Budapest, (1001-05-429) 8:30 AM – 11:20 AM Room G 45, Donald P. Jacobs Center Organizers: Louis H. Kauffman,Universityof Special Session on Fluid Dynamics, Diffusion and Illinois at Chicago Reaction, III David E. Radford,University of Illinois at Chicago 8:30 AM – 11:20 AM Room M 177, Technological Institute Fernando J. O. Souza,Universityof Organizers: Peter S. Constantin,Universityof Iowa Chicago 8:30AM Central Braided Hopf Algebras. Preliminary report. Leonid V. Ryzhik,Universityof (258) Peter C Schauenburg,Mathematisches Institut der Chicago Universit¨at Munchen¨ (1001-16-186) 8:30AM Avariational principle based study of KPP front 9:00AM Central Invariants and Higer Indicators for (270) speeds in random shear flows. (259) Semi-simple Quasi-Hopf Algebras. Preliminary Jack Xin,University of Texas (1001-35-173) report. Siu-Hung Ng*, Iowa State University, and Peter 9:30AM Estimates in singularly perturbed models for Schauenburg,Mathematisches Institut Der (271) diffusion flames. Universit¨at Munchen¨ (1001-16-380) Jean-Michel Roquejoffre,Universite´PaulSabatier Toulouse (1001-35-378) 9:30AM Canonical central elements in quasi-triangular Hopf (260) algebras. Preliminary report. 10:30AM Quenching of combustion by fluid flow. Thomas Kerler,TheOhioStateUniversity (272) Alexander Kiselev,UniversityofWisconsin, (1001-16-287) Madison (1001-35-255) 10:00AM On integrals and trace functions for Hopf-algebra (261) objects in symmetric, traced categories. Special Session on Geometric Partial Differential Fernando J. O. Souza,UniversityofIowa Equations, II (1001-16-420) 10:30AM About categories of matched pairs and Singer pairs 8:30 AM –10:55AM Room L R5, Technological Institute (262) of Hopf algebras. Preliminary report. Mitja Mastnak,Dalhousie University (1001-16-347) Organizers: Gui-Qiang Chen,Northwestern University 11:00AM A uniqueness property for quantizations of (263) Teichmuller¨ spaces. Preliminary report. Jared Wunsch,Northwestern Hua Bai,UniversityofSouthern California University (1001-17-202) 8:30AM Asymptotics of neckpinching in Ricci flow. (273) Sigurd B Angenent,MathDept/UW Madison (1001-53-236) Special Session on Extremal Combinatorics, III 9:00AM Ideal boundary conditions and intersection 8:30 AM – 11:20 AM Room G 36, Donald P. Jacobs Center (274) cohomology. Eugenie Hunsicker,LawrenceUniversity Organizers: Dhruv Mubayi,University of Illinois at (1001-35-259) Chicago 9:30AM The Bernstein problem in the Heisenberg group. Yi Zhao,University of Illinois at (275) Nicola Garofalo*, Purdue University, and Scott Chicago Pauls,Dartmouth University (1001-51-165)

Appendix–44 NOTICES OF THE AMS VOLUME 51, NUMBER 9 Evanston, IL, Sunday, October 24 –ProgramoftheSessions

10:00AM Resolvents of elliptic cone operators. Preliminary Special Session on Spectral Problems of Differential (276) report. Operators, III Juan B Gil*, Penn State Altoona, Thomas Krainer, University of Potsdam, Germany, and Gerardo A 9:00 AM –10:50AM Room M 128, Technological Institute Mendoza,Temple University (1001-58-246) Organizers: Qingkai Kong,Northern Illinois 10:30AM Gluing and comparison formulae for the spectral University (277) invariants of Dirac operators on compact and noncompact manifolds. Hongyou Wu,Northern Illinois Paul A Loya,SUNY Binghamton (1001-58-49) University Anton Zettl,Northern Illinois University 9:00AM Simple and double eigenvalues of the Hill operator
(288) with a two term potential. Special Session on Computability Theory and Boris Mityagin*, Department of Mathematics, the Applications, III Ohio State University, and Plamen Djakov (1001-47-226) 8:30 AM – 11:20 AM Room G 03, Donald P. Jacobs Center 10:00AM Asymptotics of spectral gaps of 1D periodic Organizers: Robert I. Soare,UniversityofChicago (289) Schroedinger operators with two term potentials. Plamen Djakov*, Sofia University, and Boris Denis R. Hirschfeldt,Universityof Mityagin,The Ohio State University (1001-47-26) Chicago 10:30AM Abstract Left-Definite Theory for Positive 8:30AM The existential theory of the jump-usl of Turing
(290) Self-Adjoint Operators. (278) degrees with least element. Preliminary report. L. L. Littlejohn,Department of Mathematics and Manuel Lerman,UniversityofConnecticut Statistics, Utah State University (1001-34-302) (1001-03-62) 9:00AM What is computability for physical systems? Special Session on Geometric Aspects of the
(279) Preliminary report. Langlands Program, III Anil Nerode,Department of Mathematics, Cornell University (1001-03-185) 9:00 AM –10:50AM Room L 251, Technological Institute 9:30AM On Fra¨ıss´e’s conjecture and some equivalent (280) statements. Organizers: Edward Frenkel,Universityof Antonio Montalban,CornellUniversity California Berkeley (1001-03-80) Dennis Gaitsgory,Universityof Chicago 10:00AM Mass Problems to the Rescue! (281) Stephen G. Simpson,Department of Mathematics, Mark Goresky,Institute for Advanced Pennsylvania State University (1001-03-98) Study Π0 Kari Vilonen,NorthwesternUniversity 10:30AM Invariance and degree in the lattice of 1 classes. (282) Rebecca Weber,Penn State (1001-03-92) 9:00AM Towards higher-dimensional Langlands (291) correspondence. Preliminary report. 11:00AM An Application of Kolmogorov Complexity to the Mikhail Kapranov,Yale University (1001-14-362) (283) Structure of Scott Sets. Theodore A. Slaman,UniversityofCalifornia, 10:00AM Applications of Motivic Integration to Berkeley (1001-03-143) (292) Representation Theory. Thomas C Hales,UniversityofPittsburgh (1001-22-219)

Special Session on Modern Schubert Calculus, III Special Session on Differential Geometry, III 9:00 AM – 11:20 AM Room G 44, Donald P. Jacobs Center 9:00 AM –10:50AM Room MG 28, Technological Institute Organizers: Ezra Miller,UniversityofMinnesota Organizers: Anders Ingemar Linner,Northern Frank Sottile,TexasA&MUniversity Illinois University 9:00AM Equivariant cohomology of the Quot scheme. Hongyou Wu,Northern Illinois (293) Preliminary report. University Tom Braden*, University of Massachusetts, 9:00AM Cylindrical Contact Homology of Subcritical Amherst, Linda Chen,OhioState University, and (284) Stein-fillable Contact Manifolds. Frank Sottile,Texas A&M University (1001-14-324) Mei-Lin Yau,MichiganState University 9:30AM The T-equivariant cohomology of cell complexes (1001-57-36) (294) and the case of infinite Grassmannians. − 9:30AM Mixed Dimensional Compactness and RnXSn 1 Megumi Harada,UniversityofToronto
(285) Sphere Bundle Measures. (1001-53-228) Simon P Morgan,UniversityofMinnesota 10:00AM Mirkovic-Vilonen cycles and polytopes. (1001-53-09) (295) Joel Kamnitzer,UniversityofCalifornia, Berkeley 10:00AM The Theorema Egregium for ν-Gaussian curvatures. (1001-22-307) (286) Matias Navarro*, Facultad de Matematicas, 10:30AM Generalizing group exponents using the topology of Universidad Autonoma de Yucatan, and F (296) subvarieties of the flag variety. Sanchez-Bringas,FacultaddeCiencias, UNAM Julianna S Tymoczko,UniversityofMichigan (1001-53-34) (1001-14-428) 10:30AM Comparison theorems for generalized Riccati 11:00AM Some new results on Thom polynomials. (287) equations and applications. Preliminary report. (297) Richard Rimanyi,UniversityofNorth Carolina at Libin Mou,Bradley University (1001-53-214) Chapel Hill (1001-14-321)

OCTOBER 2004 NOTICES OF THE AMS Appendix–45 Program of the Sessions – Evanston, IL, Sunday, October 24 (cont’d.)

Special Session on Representation Theory of 10:00AM Anew approach to the orthogonality of the Reductive Groups, III (309) Laguerre and Hermite polynomials. Slobodan B. Trickovic*andMiomir S. Stankovic, 9:00 AM – 11:20 AM Room LG 66, Technological Institute University of Nis, Serbia (1001-33-16) 10:30AM Asymptotic analysis of the Krawtchouk polynomials Organizers: Jeffrey D. Adler,UniversityofAkron
(310) by the WKB method. Ju-Lee Kim,University of Illinois at Diego Dominici,SUNY New Paltz (1001-41-28) Chicago 11:00AM Analysis of the Paraxial Wave Equation: An 9:00AM Transfer of generic representations from GSp(4) to (311) Application of Special Functions. (298) GL(4). Pete A McCoy*andReza Malek-Madani,U.S.Naval Mahdi Asgari,Institute for Advanced Study Academy (1001-33-153) (1001-11-314) 9:30AM Local newforms for GSp(4). Preliminary report. (299) Brooks Roberts*, University of Idaho, and Ralf Special Session on Codes and Applications, III Schmidt,University of Oklahoma (1001-22-105) 9:00 AM –10:50AM Room G 42, Donald P. Jacobs Center 10:00AM Saito-Kurokawa representations of PGSp4 and its (300) inner forms. Organizers: William C. Huffman,Loyola University Wee Teck Gan,UniversityofCalifornia, San Diego of Chicago (1001-22-346) Vera S. Pless,University of Illinois at 10:30AM Functoriality and applications. Chicago (301) Muthu Krishnamurthy,UniversityofMichigan 9:00AM Constructing Optimal Linear Codes. Preliminary (1001-11-354)
(312) report. 11:00AM Base Change and K-types for U(3). Anton Betten,Colorado State University (302) Joshua Michael Lansky*, American University, and (1001-05-208) Jeffrey D. Adler,University of Akron (1001-22-398) 9:30AM On Optimal linear codes over GF(8). Preliminary (313) report. ChristopherMJones,St.Mary’s College of Special Session on Low-Dimensional Topology and California (1001-94-75) Kleinian Groups, III 10:00AM Identifying codes and their cousins. Preliminary
(314) report. 9:00 AM – 11:20 AM Room LG 76, Technological Institute Ari Trachtenberg,Boston University (1001-94-298) Organizers: Ian Agol,University of Illinois at 10:30AM Optimal Linear Codes over Z4. Chicago (315) Steven T. Dougherty,UniversityofScranton, and John Holt,University of Illinois at T. Aaron Gulliver*, University of Victoria Chicago (1001-94-340) Saul Schleimer,University of Illinois at Chicago Special Session on Nonlinear Partial Differential 9:00AM Discussion Equations and Applications, III 9:30AM Distribution of length segments for a random (303) geodesic. 9:00 AM –10:55AM Room L R3, Technological Institute Martin Bridgeman*, Boston College, and David Organizers: Gui-Qiang Chen,Northwestern ,Harvard University (1001-00-432) Dumas University 10:00AM Towards a classification of Primitive/Seifert-Fibered Mikhail Feldman,Universityof (304) tunnel number one knots. Preliminary report. Wisconsin at Madison John O. Berge,Madison, WI (1001-57-366) 9:00AM Plasma sheaths and their dynamics. 10:30AM Punctured torus quasifuchsian groups. Preliminary
(316) M. Slemrod,UniversityofWisconsin- Madison (305) report. (1001-35-40) Francois Gueritaud,UniversityofSouthern California (1001-57-330) 9:30AM Regularity of solutions to anisotropic elliptic (317) equations. 11:00AM Heegaard splittings and hyperbolic geometry. Gary M Lieberman,IowaState University (306) Hossein Namazi,YaleUniversityandStonyBrook (1001-35-135) University (1001-57-422) 10:00AM On a Multidimensional Model for the Dynamic (318) Combustion of Compressible Reacting Flows. Special Session on Special Functions, Orthogonal D. Donatelli,UniversityofL’Aquila, and K. Trivisa*, University of Maryland at College Park (1001-35-93) Polynomials, and their Applications, III 10:30AM Global Structure of Solutions to a Two-Dimensional 9:00 AM – 11:25 AM Room L 158, Technological Institute (319) System of Conservation Laws. Preliminary report. Dehua Wang,University of Pittsburgh (1001-35-90) Organizers: George Gasper,Northwestern University Ahmed I. Zayed,DePaulUniversity Special Session on Stability Issues in Fluid Dynamics, III 9:00AM AGeneralization of the Prolate Spheroidal Wave
(307) Functions. Preliminary report. 9:30 AM – 11:20 AM Room L R4, Technological Institute Ahmed I Zayed,DePaul University (1001-33-316) 9:30AM Anewmethodof calculating values of prolate Organizers: Susan J. Friedlander,Universityof (308) spheroidal wave functions. Illinois at Chicago Gilbert G. Walter*andTatiana Soleski, Roman Shvydkoy,University of Illinois UW-Milwaukee (1001-41-72) at Chicago

Appendix–46 NOTICES OF THE AMS VOLUME 51, NUMBER 9 Evanston, IL, Sunday, October 24 –ProgramoftheSessions

9:30AM Dynamic Bifurcation in Geophysical Fluid Dynamics. Invited Address (320) Tiian Ma,Indiana University and Sichuan University, and Shouhong Wang*, Indiana University 2:00 PM –2:50PM Auditorium, Technological Institute (1001-76-336) (329) Two generator Kleinian groups. 10:00AM Strange eigenmodes of linear operators occuring in Ian Agol,University of Illinois at Chicago
(321) stability theory. (1001-57-331) Raymond T Pierrehumbert,TheUniversityof Chicago (1001-35-23) 10:30AM Stability of Lagrangian ideal flows. Special Session on Stability Issues in Fluid Dynamics, (322) Stephane Leblanc*andDavid Guimbard, IV LSEET/CNRS, University of Toulon-Var, France (1001-76-299) 3:00 PM –4:20PM Room L R4, Technological Institute 11:00AM Ergodicity of the degenerately forced Stochastic Organizers: Susan J. Friedlander,Universityof (323) Navier–Stokes Equations. Illinois at Chicago Jonathan C Mattingly*, Mathematics Department, Roman Shvydkoy,University of Illinois Duke University, Etienne Pardoux,Universitede at Chicago Provence, and Martin Hairer,UniversityofWarwick, UK (1001-76-423) 3:00PM Nonlinear Instability of Ideal Plane Flows. (330) Zhiwu Lin,Courant Institute (1001-76-297) 3:30PM Linear Stability in an Ideal Incompressible Fluid. (331) Yuri Latushkin,Department of Mathematics, Special Session on Applications of Motives, III University of Missouri-Columbia (1001-76-134) 4:00PM Geometric optics spectral theory for advective 9:30 AM – 11:20 AM Room L 211, Technological Institute (332) equations. Roman Shvydkoy,University of Illinois at Chicago Organizers: Eric M. Friedlander,Northwestern (1001-35-240) University Alexander Goncharov,Brown University Special Session on Iterated Function Systems and Analysis on Fractals, IV Mikhail Kapranov,YaleUniversity

Yuri Manin,MaxPlanck Institute for 3:00 PM –5:20PM Room L 160, Technological Institute Mathematics Organizers: Ka-Sing Lau,Chinese University of 9:30AM Motivic tubular neighborhoods. Preliminary report. (324) Marc Levine,Northeastern University Hong Kong (1001-14-117) Stephen S.-T. Yau,University of Illinois at Chicago 10:30AM K-theory of log-schemes. (325) Wieslawa Krystyna Niziol,UniversityofUtah 3:00PM ANon-Additive Thermodynamic Formalism. (1001-11-417) (333) Preliminary report. Yakov Pesin and Anna Mummert*, Penn State University (1001-37-19) 3:30PM Diophantine Approximation for Conformal Special Session on Index Theory, Morse Theory, and (334) Measures of One-Dimensional Iterated Function the Witten Deformation Method, III Systems. Mariusz Urbanski,UniversityofNorthTexas 9:30 AM – 11:15 AM Room L 221, Technological Institute (1001-37-14) 4:00PM Complex Dimensions of Self-Similar Fractals: Organizers: Igor Prokhorenkov,TexasChristian (335) One-Dimensional Theory and the Example of the University Koch Snowflake Curve in Two Dimensions. Ken Richardson,TexasChristian Michel L. Lapidus*andErin P. J. Pearse,University University of California, Riverside (1001-28-61) 9:30AM Equivalence of spectral projections in semiclassical 4:30PM AtubeformulafortheKochsnowflake curve, with (326) limit and a vanishing theorem for higher traces in (336) applications to complex dimensions. Preliminary K-theory. report. Yuri Kordyukov,Institute of Mathematics, Russian Michel L. Lapidus and Erin P.J. Pearse*, University Academy of Sciences, Ufa, Russia, Varghese of California, Riverside (1001-37-22) Mathai,UniversityofAdelaide, Adelaide, Australia, 5:00PM Housdorff Dimension of General Sierpinski Carpets and Mikhail Shubin*, Northeastern University,
(337) in Rm. Preliminary report. Boston, USA (1001-58-70) Ning Jin,University of Illinois at Chicago, Chicago, 10:30AM Morse Inequalitites, A Path Space Approach. IL 60607 (1001-37-419) (327) Ionel Popescu,NorthwesternUniversity / MIT (1001-53-427) Special Session on Algebraic Topology: Interactions with Representation Theory and Algebraic Geometry, IV Invited Address 3:00 PM –5:50PM Room LG 68, Technological Institute 11:40 AM – 12:30 PM Auditorium, Technological Institute Organizers: Paul G. Goerss,Northwestern (328) Khovanov homology and nilpotent slices. University Paul Seidel,ImperialCollege-London and University Jesper Kragh Grodal,Universityof of Chicago (1001-00-04) Chicago

OCTOBER 2004 NOTICES OF THE AMS Appendix–47 Program of the Sessions – Evanston, IL, Sunday, October 24 (cont’d.)

Brooke E. Shipley,University of Illinois Special Session on Spectral Problems of Differential at Chicago Operators, IV 3:00PM Automorphism groups of free groups with (338) boundaries. 3:00 PM –6:20PM Room M 128, Technological Institute Nathalie Wahl,Aarhus University (1001-55-320) Organizers: Qingkai Kong,Northern Illinois 3:30PM Parametrized equivariant stable homotopy theory. University (339) Johann Sigurdsson*, Univeristy of Notre Dame, Hongyou Wu,Northern Illinois and ,TheUniversity of Chicago J. Peter May University (1001-55-270) Anton Zettl,Northern Illinois 4:00PM The Goodwillie derivatives of a monoid. Preliminary University (340) report. Andrew Mauer-Oats,NorthwesternUniversity 3:00PM ABorgtypetheorem for matrix-valued (1001-55-334) (350) supersymmetric Dirac difference operators. SClark*, University of Missouri-Rolla, and F 4:30PM The Circle-Equivariant Sigma Orientation. Gesztesy,UniversityofMissouri-Columbia (341) Preliminary report. (1001-34-339) David Gepner,University of Illinois Urbana-Champaign (1001-55-276) 3:30PM On Periodic Matrix-Valued Weyl-Titchmarsh (351) Functions. 5:00PM λ-ring structures over Z[[x]]. Miron Bekker*, University of Missouri-Rolla, and (342) Donald Y. Yau,University of Illinois at Eduard Tsekanovskii,NiagaraUniversity Urbana-Champaign (1001-55-101) (1001-47-157) 5:30PM Areportonweak n-categories. 4:00PM The spectral function associated with (343) J. P. May,The University of Chicago (1001-55-284) (352) Sturm-Liouville equations with potential of Wigner-von Neumann type. D. J. Gilbert,Dublin Institute of Technology, B. J. Harris,Northern Illinois University, and S. M. Special Session on Nonlinear Waves, IV Riehl*, University of Northern Iowa (1001-34-108) 4:30PM Right-definite half-linear Sturm-Liouville Problems. 3:00 PM –3:50PM Room L R2, Technological Institute (353) Lingju Kong*, Northern Illinois University, Dekalb, IL 60115, and Qingkai Kong,Northern Illinois Organizers: Jerry L. Bona,University of Illinois at University (1001-34-45) Chicago 5:00PM Geometric Aspects of Sturm-Liouville Problems IV. Shuming Sun,VirginiaPolytechnic
(354) Infinite Band for Non-Real Eigenvalues in Indefinite Institute and State University Case. Preliminary report. Bingyu Zhang,UniversityofCincinnati Kevin J. Haertzen*, University of Wisconsin-Platteville, and Hongyou Wu,Northern 3:00PM AmodelforLandau damping in plasma physics. Illinois University (1001-34-358) (344) Thierry Colin*, University Bordeaux 1, Radouin Belaouard, Gerard Gallice,CEA-CESTA, and Cedric 5:30PM Geometric Aspects of Sturm-Liouville Problems, V. Galusinski,University Bordeaux 1 (1001-35-59) (355) Natural Loops of Boundary Conditions for Monotonicity of Eigenvalues and Their Applications. 3:30PM Forward stimulated Brillouin scattering instability Preliminary report. (345) of a spatially and temporally incoherent laser Wu-Jian Peng, Mihai T. Racovitan*andHong-You beam. Wu,Northern Illinois University (1001-34-08) Pavel M Lushnikov,Department of Mathematics, University of Notre Dame (1001-78-375) 6:00PM Discontinuous Boundary-Value Problems: Expansion (356) and Sampling Theorems. Ahmed Zayed*, DePaul University, M. Annaby, Cairo University, and G. Freiling,Universityof Duisburg (1001-34-430) Special Session on Mathematical Problems in Robotics, IV

3:00 PM –5:15PM Room A 110, Technological Institute Special Session on Geometric Aspects of the Langlands Program, IV Organizer: Robert W. Ghrist,University of Illinois at Urbana-Champaign 3:00 PM –4:50PM Room L 251, Technological Institute 3:00PM AGrammatical Approach to Self-Organizing Organizers: Edward Frenkel,Universityof (346) Robotic Systems. California Berkeley Eric Klavins,UniversityofWashington (1001-68-172) Dennis Gaitsgory,Universityof Chicago 3:30PM Coverage, Complexity and Feasibility Issues in (347) Mobile Sensor Networks. Preliminary report. Mark Goresky,Institute for Advanced Abubakr Muhammad,GeorgiaInstitute of Study Technology, Atlanta, GA (1001-93-371) Kari Vilonen,NorthwesternUniversity 4:00PM Deterministic Sampling Methods for Spheres and 3:00PM On the stability of invariant distributions over local (348) SO(3). (357) fields. Anna Yershova*andSteven M. LaValle,University David Kazhdan,Hebrewuniversity, Jerusaelm, of Illinois (1001-68-328) Israel (1001-17-73) 4:30PM Collision-free motion planning. 4:00PM Uhlenbeck spaces for A2 and affine Lie algebras. (349) Michael Farber,UniversityofDurham, UK (358) Michael Finkelberg,Independent Moscow (1001-55-397) University (1001-14-76)

Appendix–48 NOTICES OF THE AMS VOLUME 51, NUMBER 9 Evanston, IL, Sunday, October 24 –ProgramoftheSessions

Special Session on Algebraic Representations and 3:00PM Aconstruction of primitive ideals in enveloping Deformations, IV (370) algebras by explicit generators. Victor Protsak,Department of Mathematics, 3:00 PM –5:50PM Room LG 52, Technological Institute University of Oklahoma (1001-17-319) 3:30PM Jacquet modules for p-adic general linear groups. Organizers: Stephen R. Doty,Loyola University of (371) Chris S. Jantzen,EastCarolina University Chicago (1001-22-46) Anthony Giaquinto,Loyola University 4:00PM Supercuspidal characters of SL over a p-adic field, of Chicago  (372)  aprime. 3:00PM Aq-Partition Algebra. Preliminary report. Loren R Spice,UniversityofMichigan (359) Tom Halverson*, Macalester College, and (1001-22-116) Arun Ram,UniveristyofWisconsin - Madison 4:30PM On the local constancy of characters. Preliminary (1001-20-86) (373) report. 3:30PM Hochschild cohomology of n-algebras and string Jonathan Korman,Univ.ofToronto, Math. Dept. (360) topology. Preliminary report. (1001-22-63) Alexander A Voronov,UniversityofMinnesota (1001-16-145) Special Session on Low-Dimensional Topology and 4:00PM Deformations and Extensions of Infinity Algebras. Kleinian Groups, IV (361) Michael R. Penkava,UniversityofWisconsin-Eau Claire (1001-17-257) 3:00 PM –5:50PM Room LG 76, Technological Institute 4:30PM Kronecker quiver and bases of quantum affine sl2. (362) Kevin McGerty,UniversityofChicago Organizers: Ian Agol,University of Illinois at (1001-16-356) Chicago John Holt,University of Illinois at 5:00PM Quantum group actions, R-matrices and Chicago (363) deformations of algebras. Preliminary report. Georgia Benkart,UniversityofWisconsin, and Saul Schleimer,University of Illinois at Sarah Witherspoon*, Texas A&M University Chicago (1001-16-169) 3:00PM Heegaard surfaces and measured laminations. 5:30PM The affine Birman-Wenzl-Murakami algebras and (374) Tao Li,Oklahoma State University (1001-57-292) (364) tangles in the solid torus. 3:30PM Acombination theorem for Veech subgroups of the Frederick M. Goodman*andHolly Hauschild, (375) mapping class group. Preliminary report. University of Iowa (1001-16-387) Christopher J.Leininger*, Columbia University, and Alan W. Reid,UniversityofTexas at Austin (1001-51-198) 4:00PM Representation-volume rigidity for hyperbolic Special Session on Modern Schubert Calculus, IV (376) manifolds. Ben Klaff,UniversityofTexas at Austin 3:00 PM –5:20PM Room G 44, Donald P. Jacobs Center (1001-57-329) Organizers: Ezra Miller,UniversityofMinnesota 4:30PM Geometric tameness in word-hyperbolic closed Frank Sottile,TexasA&MUniversity (377) three-manifold groups. Joshua B Barnard,UniversityofOklahoma 3:00PM Eigenvalue problems and a new product in the (1001-57-388) (365) cohomology of flag varieties. Prakash Belkale*, Department of Mathematics 5:00PM Teichmuller geodesics and Lines of Minima. UNC, Chapel Hill, North Carolina, USA., and (378) Kasra Rafi*, University of California Santa Barbara, Shrawan Kumar,Department of Mathematics, UNC Caroline Series,UniversityofWarwick,and Chapel Hill. (1001-14-295) Young-Eun Choi (1001-00-431) 3:30PM AHorn-type Recursion for Minuscule Schubert 5:30PM The Heegaard genus of a union of small manifolds. (366) Calculus. Preliminary report. (379) Eric Sedgwick*, DePaul University, David Kevin Purbhoo*, Fields Institute, and Frank Bachman,PitzerCollege, and Saul Schleimer, Sottile,Texas A&M University (1001-14-147) Rutgers University (1001-57-369) 4:00PM Equivariant Quantum Schubert Calculus. (367) Leonardo Constantin Mihalcea,Universityof Special Session on Special Functions, Orthogonal Michigan (1001-14-109) Polynomials, and their Applications, IV 4:30PM ANewCombinatorial Model for the Equivariant 3:00 PM –4:25PM Room L 158, Technological Institute (368) K-theory of G/P. Cristian P. Lenart,State University of New York at Organizers: George Gasper,Northwestern Albany (1001-22-53) University 5:00PM Degrees of Schubert varieties. Ahmed I. Zayed,DePaulUniversity (369) Alexander Postnikov,MIT (1001-05-383) 3:00PM Second-order superintegrable systems on (380) conformally flat spaces. Willard Miller,School of Mathematics, University of Special Session on Representation Theory of Minnesota (1001-33-96) Reductive Groups, IV 3:30PM The coexistence problem for the Heun equation. (381) Hans W Volkmer,Univeristyof 3:00 PM –4:50PM Room LG 66, Technological Institute Wisconsin-Milwaukee (1001-33-217) 4:00PM Anonlinear differential equation satisfied by Organizers: Jeffrey D. Adler,UniversityofAkron (382) modular forms with level 2. Ju-Lee Kim,University of Illinois at Heekyoung Hahn,UniversityofRochester Chicago (1001-33-193)

OCTOBER 2004 NOTICES OF THE AMS Appendix–49 Program of the Sessions – Evanston, IL, Sunday, October 24 (cont’d.)

Special Session on Mathematical Techniques in Special Session on Fluid Dynamics, Diffusion and Musical Analysis, IV Reaction, IV

3:00 PM –5:40PM Auditorium, Technological Institute 3:00 PM –5:50PM Room M 177, Technological Institute Organizers: Judith Baxter,University of Illinois at Organizers: Peter S. Constantin,Universityof Chicago Chicago Richard Cohn,UniversityofChicago Leonid V. Ryzhik,Universityof Robert Peck,Louisiana State University Chicago 3:00PM Towards a Meta-Physics of the Musical Mind: 3:00PM Travelling fronts in a Boussinesq system. (383) Canonical Formulation of Weber/Fechner’s Law in (393) Henri Berestycki,EHESS (1001-35-312) Application to Tonal Music. 4:00PM Advection-diffusion for cellular flows at high Peclet Thomas Noll,Technical University of Berlin (394) number. (1001-22-359) Alexei Novikov*, Penn State University, George 4:00PM Toward a General Theory of Key Signatures and Papanicolaou,StanfordUniversity, and Lenya
(384) Enharmonic Equivalence. Preliminary report. Ryzhik,University of Chicago (1001-76-233) Julian Hook,Indiana University (1001-00-84) 5:00PM Quenching and Propagation of Combustion Without 5:00PM Piano technique and permutation groups. (395) Ignition Temperature Cutoff. (385) Preliminary report. Andrej Zlatos,UniversityofWisconsin - Madison Lucian B. Zidaru*andRobert W. Peck,Louisiana (1001-35-390) State University (1001-20-413)

Special Session on Hopf Algebras at the Crossroads of Algebra, Category Theory, and Topology, IV Special Session on Codes and Applications, IV

3:00 PM –5:20PM Room G 45, Donald P. Jacobs Center 3:00 PM –5:50PM Room G 42, Donald P. Jacobs Center Organizers: Louis H. Kauffman,Universityof Organizers: William C. Huffman,Loyola University Illinois at Chicago of Chicago David E. Radford,University of Illinois Vera S. Pless,University of Illinois at at Chicago Chicago Fernando J. O. Souza,Universityof 3:00PM On Some Graph Theoretic Properties of LDPC Codes. Iowa
(396) Hossein Pishro-Nik*andFaramarz Fekri,Georgia 3:00PM Hopf algebras at the crossroads: mathematical Institute of Technology (1001-05-252) (386) structure in quantum fields. Preliminary report. 3:30PM Codes on graphs and hypergraphs. Dirk Kreimer,CNRS-IHESandCenterfor (397) Alexander Barg,UniversityofMaryland Math.Phys., Boston Univ. (1001-81-102) (1001-94-426) 3:30PM Representations of the Poincare 2-Group. 4:00PM Pseudocodewords, cycle codes, and the edge zeta (387) Louis Crane,Kansas State University (1001-18-215)
(398) function of graphs. Preliminary report. 4:00PM Groupoid-enriched groupoid category, Frobenius Ralf Koetter*, University of Illinois at
(388) algebra, and relativity. Preliminary report. Urbana-Champaign, Wen-Ching W Li,Pennsylvania Zbigniew Oziewicz,Universidad Nacional State University, Pascal O. Vontobel,Universityof Autonoma de Mexico, Facultad de Estudios Wisconsin, and Judy L. Walker,Universityof Superiores Cuautitlan (1001-18-160) Nebraska (1001-94-414) 4:30PM On the Tensor Product of an Oriented Quantum 4:30PM LDPC codes obtained from quadratic surfaces of (389) Algebra with Itself. Preliminary report. (399) finite projective spaces. Preliminary report. David E. Radford,University of Illinois at Chicago Keith E Mellinger*, Amanda Passmore and (1001-16-384) Jennifer Stovall,UniversityofMary Washington 5:00PM Quantum Invariants of Virtual Knots and Links. (1001-94-39) (390) Preliminary report. 5:00PM Problems in Combinatorial and Number Theory Louis H Kauffman,University of Illinois at Chicago (400) Related to LDPC Code Construction. (1001-57-286) Olgica Milenkovic,ECEDepartment,Universityof Colorado, Boulder (1001-94-264) Special Session on Extremal Combinatorics, IV 5:30PM Results on Finite-Field Wavelets and Their (401) Applications to Error Correcting Codes. 3:00 PM –3:50PM Room G 36, Donald P. Jacobs Center Faramarz Fekri*, Farshid Delgosha and Mina Sartipi,School of ECE, Georgia Institute of Organizers: Dhruv Mubayi,University of Illinois at Technology (1001-94-360) Chicago Yi Zhao,University of Illinois at Chicago 3:00PM Random geometric graph diameter threshold in the Special Session on Nonlinear Partial Differential (391) unit disk. Preliminary report. Equations and Applications, IV Robert B. Ellis*, Texas A&M University, Xingde Jia, Texas State University-San Marcos, Jeremy L. 3:00 PM –4:55PM Room L R3, Technological Institute Martin,UniversityofMinnesota, and Catherine H. Yan,Texas A&M University (1001-05-391) Organizers: Gui-Qiang Chen,Northwestern 3:30PM On the abelian sandpile model. University (392) Evelin Toumpakari,Department of Mathematics, Mikhail Feldman,Universityof University of Chicago (1001-05-403) Wisconsin at Madison

Appendix–50 NOTICES OF THE AMS VOLUME 51, NUMBER 9 Evanston, IL, Sunday, October 24 –ProgramoftheSessions

3:00PM The phase transition between chiral nematic and 4:30PM Spectra of relations on the random graph. (402) smectic liquid crystals. (414) Valentina Harizanov,GeorgeWashington Daniel Phillips*, Purdue University, Department of University, and Russell Miller*, Queens College – Mathematics, and Sookyung Joo,Institute for C.U.N.Y. (1001-03-218) Mathematics and its Applications (IMA) , University 5:00PM Embedding and Coding Below a 1-Generic Degree. of Minnesota (1001-35-167) (415) Noam Greenberg*, University of Notre Dame, 3:30PM Stability of undercompressive shock profiles. and Antonio Montalban,CornellUniversity (403) Peter Howard,TexasA. and M., and Kevin (1001-03-67) Zumbrun*, Indiana University, Bloomington 5:30PM Computably Enumerable Algebras, Their (1001-35-126) (416) Expansions, and Isomorphisms. 4:00PM Structural properties of viscoelasticity and Bakhadyr Khoussainov*, The University of (404) convergence to polyconvex elastodynamics. Auckland, New Zealand, Steffen Lempp,The Corrado Lattanzio,UniversitadeL’Aquila, and University of Wisconsin-Madison, and Theodore A Athanasios E. Tzavaras*, University of Wisconsin Slaman,Berkeley (1001-03-283) (1001-35-224) 4:30PM Critical Thresholds in Hyperbolic Balance Laws. Special Session on Solving Polynomial Systems, IV (405) Hailiang Liu,Iowa State University (1001-35-277) 3:00 PM –5:50PM Room G 43, Donald P. Jacobs Center

Special Session on Geometric Partial Differential Organizers: Anton Leykin,University of Illinois at Chicago Equations, III Jan Verschelde,University of Illinois at 3:00 PM –5:25PM Room L R5, Technological Institute Chicago 3:00PM Genetic Algorithms for zero-dimensional ideals. Organizers: Gui-Qiang Chen,Northwestern (417) Ilias S. Kotsireas,Assistant Professor, Wilfrid University Laurier University (1001-14-221) Jared Wunsch,Northwestern 3:30PM Toric residues and partitions of polytopes. University (418) Amit Khetan and Ivan Soprounov*, University of 3:00PM The Calderon´ problem with partial data. Massachusetts, Amherst (1001-14-258) (406) Gunther Uhlmann,UniversityofWashington 4:00PM Break (1001-35-115) 4:30PM Approximate GCD and Factorization of Multivariate 3:30PM Support Theorems For Generalizations of Radon (419) Polynomials. (407) Tranforms and Inverse Problems. Zhonggang Zeng,Northeastern Illinois University Antonio C Sa Barreto,PurdueUniversity (1001-65-232) (1001-35-317) 5:00PM Solving Multivariate Polynomial Systems. 4:00PM Picard modular groups in complex hyperbolic (420) Hong Zhang,Illinois Institute of Technology and (408) spaces. Preliminary report. Argonne National Laboratory (1001-65-146) Gabor Francsics,MichiganState University 5:30PM Numerical Jet Geometry of Partial Differential (1001-35-318) (421) Equations. Preliminary report. 4:30PM Integral geometry of tensor fields and the boundary Greg J. Reid,UniversityofWestern Ontario (409) rigidity problem. (1001-35-207) Plamen Stefanov*, Purdue University, and Gunther Uhlmann,University of Washington (1001-53-71) Susan J. Friedlander 5:00PM Harmonic Solutions to SomeFully Nonlinear Second Associate Secretary (410) Order PDEs on R2. Chicago, Illinois Joseph L Shomberg,UniversityofWisconsin - Milwaukee (1001-35-411)

Special Session on Computability Theory and Applications, IV

3:00 PM –5:50PM Room G 03, Donald P. Jacobs Center Organizers: Robert I. Soare,UniversityofChicago Denis R. Hirschfeldt,Universityof Chicago

3:00PM The lown and lowm r.e. degrees are not (411) elementarily equivalent. Richard A. Shore,Cornell University (1001-03-66) 3:30PM Minimal wtt degrees and computably enumerable (412) Turing degrees. Preliminary report. Reed Solomon*, University of Connecticut, and Rodney Downey,Victoria University at Wellington (1001-03-122) 4:00PM Improving and Proving the Slaman-Woodin (413) Conjecture. Peter Cholak*, University of Notre Dame, Rod Downey,Victoria University (of Wellington, New Zealand), and Leo Harrington,UC–Berkeley (1001-03-118)

OCTOBER 2004 NOTICES OF THE AMS Appendix–51