Program of the Sessions Ann Arbor, Michigan, March 1–3, 2002

3:30PM Approximation of Sobolev mappings. Preliminary Friday, March 1 (6) report. PHajlasz, Warsaw University and University of Meeting Registration Michigan (974-46-233) 4:00PM H 1-Estimates of Jacobians. 11:30 AM –4:30PM Atrium, East Hall (7) Jani Onninen*, University of Jyvaskyla, and Tadeusz Iwaniec, Syracuse University (974-26-231) AMS Exhibit and Book Sale 4:30PM On ‘Wolff Snowflakes.’. Preliminary report. (8) John L Lewis*, University of Kentucky, Verchota C 11:30 AM –4:30PM Room 1372, East Hall Greg and Andrew L Vogel, Syracuse University (974-30-20) Special Session on Topics in Geometric Function Theory, I Special Session on Commutative Algebra, I

1:00 PM –4:50PM Room 229, Dennison Building 1:00 PM –4:50PM Room 205, Dennison Building Organizers: David A. Herron,Universityof Organizers: Florian Enescu,UniversityofUtah Cincinnati AnuragK. Singh ,UniversityofUtah Nageswari Shanmugalingam, Karen E. Smith,Universityof University of Texas Michigan, Ann Arbor Jeremy T. Tyson, SUNY at Stony Brook 1:00PM A ”Strong Factorization Theorem” and some 1:00PM Geometric Characterizations of Gromov (9) applications. (1) Hyperbolicity. Ana Bravo*, , Santiago Stephen M. Buckley, NUI Maynooth/U. Michigan Encinas, Universidad de Valladolid, Spain, and (974-30-223) Orlando Villamayor U., Universidad Autonoma de 1:30PM Elliptic diffusions, exit times and the Madrid, Spain (974-14-124) (2) quasihyperbolic metric. Preliminary report. 1:30PM Blow-up algebras and homological degree. CraigA Nolder , Department of Mathematics, (10) Preliminary report. Florida State University (974-60-10) Moira A. McDermott, Gustavus Adolphus College 2:00PM Symmetric Stable Processes Stay in ThickSets. (974-13-121) (3) Preliminary report. 2:00PM Square-free monomial ideals via facet ideals. Jang-Mei Wu, University of Illinois, University of  (11) Preliminary report. Illinois, Urbana (974-31-52) Sara Faridi, George washington University 2:30PM The Dirichlet problem for p-harmonic functions in (974-13-139) (4) metric spaces. 2:30PM Free resolutions for multigraded modules. Anders Bjorn¨ *, Linkoping¨ University, Jana Bjorn¨ , (12) Preliminary report. Lund University, and Nageswari Shanmugalingam, Hara Charalambous and Alexandre Tchernev*, University of Texas at Austin (974-31-90) University at Albany, SUNY (974-13-128) 3:00PM Viscosity solutions on Grushin-type planes. 3:00PM Multiplicities of Monomial Ideals. Preliminary report. (5) Thomas J. Bieske, University of Michigan (13) Hema Srinivasan*, University of Missouri, and (974-35-211) Juergen Herzog, University of Essen (974-13-120)

The time limit for each contributed paper in the sessions is ten minutes. found in Volume 23, Issue 2 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 more than one 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. Abstractsofpaperspresentedin the sessions at this meeting will be

MARCH 2002 NOTICES OF THE AMS Appendix–3 Program of the Sessions – Ann Arbor, MI, Friday, March 1 (cont’d.)

3:30PM Minimality for complexes and differential graded 2:30PM Obstruction Theory in Model Categories. (14) modules. Preliminary report. (28) J Daniel Christensen*, University of Western Luchezar L. Avramov,Universityof Ontario, William G Dwyer and Daniel C Isaksen, Nebraska-Lincoln (974-18-41) University of Notre Dame (974-55-11) 4:00PM Gorenstein Liaison and the Construction of 3:00PM On Steenrod and Dyer-Lashof operations in some (15) Gorenstein Algebras. (29) mapping spaces. Preliminary report. Jan Oddvar Kleppe, Oslo University College, and CraigC. Westerland , University of Michigan, Ann Chris S Peterson*, Colorado State University / Arbor (974-55-163) Purdue University (974-13-170) 3:30PM Fake TQFT’s. Preliminary report. 4:30PM Bernstein-Sato polynomials and cohomology of (30) Tibor Beke, University of Michigan, Ann Arbor (16) Milnor fibers. Preliminary report. (974-18-167) Uli Walther, Purdue University (974-14-150) 4:00PM On triviality of Dickson invariants in the homology (31) of the Steenrod algebra. Special Session on Hyperbolic Manifolds and Discrete HungH. V. Nguyen , Wayne State University Groups, I (974-55-95)

1:00 PM –4:50PM Room 245, Dennison Building

Organizers: Richard D. Canary,Universityof Special Session on Moduli Spaces, I Michigan, Ann Arbor Alan W. Reid,UniversityofTexas, 1:00 PM –2:45PM Room 216, Dennison Building Austin Organizers: Angela Gibney,Universityof 1:00PM Automatic structures and geometric estimates for Michigan, Ann Arbor (17) Kleinian groups. Bryan Mosher, University of Michigan (974-57-202) Gavril M. Farkas,Universityof Michigan, Ann Arbor 1:30PM Infinite index subgroups of convergence groups. (18) Edward C Taylor*andPetra Bonfert-Taylor, Thomas A. Nevins,Universityof Wesleyan University (974-30-151) Michigan, Ann Arbor 2:00PM Bumping of Exotic Projective Structures. Gilberto Bini, University of Michigan, (19) Ken Bromberg,CalTech,andJohn Holt*, Ann Arbor University of Illinois at chicago (974-51-103) 1:00PM Counting curves over finite fields and cohomology 2:30PM Minimal volume Alexandrov spaces with (32) of moduli spaces I. Preliminary report. (20) applications to . Carel Faber*, KTH (Stockholm), and Gerard Van Peter A Storm, University of Michigan (974-51-19) der Geer, Universiteit van Amsterdam (974-14-78) 3:00PM Some problems motivated by the one-dimensional 2:00PM Counting curves over finite fields and cohomology (21) rigidity. (33) of moduli spaces II. Preliminary report. Nikolai V. Ivanov, Michigan State Univesity Gerard Van der Geer*, Universiteit van Amsterdam (974-30-143) m, and Carel Faber, KTH (Stockholm)(974-14-79) 3:30PM Volume of tubes in hyperbolic 3-manifolds (joint (22) workwith David Gabai and Robert Meyerhoff). Peter L Milley, Princeton University (974-57-248) Special Session on Algebraic Combinatorics, I 4:00PM Double Lattice Packings of Disks in Euclidean Space.  (23) Preliminary report. 1:00 PM –4:50PM Room 213, Dennison Building Andrew Przeworski, University of Texas at Austin (974-57-146) Organizers: Patricia Hersh, University of Michigan, 4:30PM Immersed surfaces in cusped hyperbolic Ann Arbor (24) 3-manifolds. Brian D. Taylor, Wayne State University Colin C Adams*, Adam Colestock, Williams 1:00PM Generalized associahedra. College, Danny Gillam, Wesleyan Univeristy, James (34) Sergey Fomin*, University of Michigan, and Andrei ,HarvardUniversity,and , Fowler Eric Katerman Zelevinsky, Northeastern University (974-05-84) Williams College (974-57-47) 1:30PM Obstructions to shifted families. Preliminary report.  (35) Art Duval*, University of Texas at El Paso, and John Special Session on Algebraic Topology, I W. Shareshian, Washington University (974-05-111)

1:00 PM –4:20PM Room 221, Dennison Building 2:00PM Some Statistical Perspectives of a Path Counting (36) Formula. Organizers: Robert Bruner, Wayne State University Devadatta Kulkarni*, Oakland University and GM Igor Kriz, University of Michigan, Ann R&D, and Ananda Sen, Oakland University Arbor (974-05-262) 1:00PM The diagonal map of a Poincar´e duality space. 2:30PM Remarks on some connections between symmetric (25) Preliminary report. (37) functions and resultants. Preliminary report. John R Klein, Wayne State University (974-55-85) Mercedes H. Rosas,UniversidadSimo´n Bolı´v a r 1:30PM Topology of spaces of knots. (974-05-54) (26) Dev Prakash Sinha, and 3:00PM Ordered planar trees and the slope variety of the (974-55-154) (38) complete graph. Preliminary report. 2:00PM Representations and K-theory of the Braid Groups. Jeremy L Martin, UC San Diego (974-05-71) (27) Preliminary report. 3:30PM The Castelnuovo-Mumford regularity of subspace Alejandro Adem*, University of Wisconsin, Dan (39) arrangements. Cohen, Louisiana State University, and Fred Cohen, Harm Derksen and Jessica S Sidman*, University University of Rochester (974-55-09) of Michigan (974-13-66)

Appendix–4 NOTICES OF THE AMS VOLUME 49, NUMBER 3 Ann Arbor, MI, Friday, March 1 – Program of the Sessions

4:00PM Some poset constructions motivated by 3:30PM Constant Mean Curvature Immersions of (40) commutative algebra.  (54) Joachinsthal or Enneper type: Applications. Anders Bjorner¨ , KTH (Kungl. Tekniska Henry C Wente, University of Toledo (974-35-254) Hogskolan¨ Stockholm), and Volkmar Welker*, 4:00PM A semilinear parabolic system for migration and Philipps-Universit¨at Marburg (974-05-149) (55) selection in population genetics. 4:30PM Cohomology of toric varieties from a combinatorial Yuan Lou*, Ohio State University, and Thomas (41) viewpoint. Nagylaki, (974-35-57) Eva-Maria E Feichtner, ETH Zurich (974-52-210) 4:30PM Exact multiplicity for semilinear elliptic Dirichlet (56) problems involving concave and convex Special Session on Biological Applications of nonlinearities. Dynamical Systems, I Moxun Tang, Michigan State University (974-35-114) 1:00 PM –4:50PM Room 1060, East Hall Organizers: J. M. Cushing, University of Arizona Shandelle M. Henson,Andrews Special Session on Mapping Class Groups and University Geometric Theory of Teichmuller Spaces, I Anna M. Spagnuolo,Oakland University 1:00 PM –4:50PM Room 237, Dennison Building 1:00PM Predicting immune regulatory elements in the Organizers: Benson Farb, University of Chicago (42) immune response to Mycobacterium tuberculosis. Denise Kirschner, Dept. of Microbiology & Nikolai Ivanov, Michigan State Immunology/University of Michigan Med School University (974-92-213) Howard Masur, University of Illinois, Chicago 1:30PM The roles of cytotoxic T lymphocytes and TNF-α (43) in the immune response to Mycobacterium 1:00PM Large scale structure of the mapping class group. tuberculosis. (57) Yair N Minsky*, SUNY at Stony Brook, and Howard Brian M Murphy*andDenise Kirschner,University AMasur, U. of Illinois at Chicago (974-30-176) of Michigan (974-92-216) 1:30PM Stable quasigeodesics in Teichmuller space. 2:00PM Lattice Effects Observed in Chaotic Dynamics of (58) Lee Mosher, Rutgers University at Newark  (44) Experimental Populations. (974-30-109) Shandelle M. Henson,AndrewsUniversity 2:00PM ”On Superinjective Simplicial Maps of Complexes of (974-92-62) (59) Curves and Injective Homomorphisms of Mapping 2:30PM Temporal Patterns in Population Data: Order in Class Groups”. Preliminary report.  (45) Chaos. Elmas Irmak, Michigan State University (974-57-48) R. F. Costantino, University of Rhode Island 2:30PM Automorphisms of the Torelli group. Preliminary (974-92-166) (60) report. 3:00PM A Convergence Theorem for Lattice Maps. Benson Farb, University of Chicago (974-57-58) (46) Preliminary report. 3:00PM The coarse geometry of the Weil-Petersson metric. JMCushing, University of Arizona (974-37-63) (61) Jeffrey F. Brock*andBenson Farb,Universityof 3:30PM A Stage-Structured Model of Two Competing Chicago (974-51-144)  (47) Species. 3:30PM Automorphisms of the Pants Complex. Jeffrey L. Edmunds, Mary Washington College (62) Dan Margalit, University of Chicago (974-51-70) (974-37-157) 4:30PM Thompson’s groups, Teichmuller theory and 4:00PM Stability of Standing Waves and Steady States for (63) algebraic topology. Preliminary report. (48) Some Nonlinear Equations. Preliminary report. William J Harvey, King’s College London Zhengfang Zhou, Michigan State University (974-57-244) (974-37-222) 4:30PM The existence and uniqueness of a positive solution (49) of an elliptic system. Joon Hyuk Kang, Andrews University (974-35-156) Special Session on Quantum Topology in Dimension Three, I Special Session on Partial Differential Equations, I 3:00 PM –4:50PM Room 224, Dennison Building 1:00 PM –4:50PM Room 1360, East Hall Organizers: Charles Frohman,UniversityofIowa Organizers: QingHan , University of Notre Dame Joanna Kania-Bartoszynska,Boise Lihe Wang,UniversityofIowa State University 1:00PM Non-Formation of Vacuum States for the 3:00PM Virtual Knot Theory. Preliminary report. (50) Compressible Navier-Stokes Equations. (64) Louis Hirsch Kauffman, Univ of Ill at Chicago Joel Smoller, University of Michigan (974-35-194) (974-57-65) 1:30PM Subelliptic harmonic maps from Carnot groups. 3:30PM On knot adjacency. Preliminary report. (51) Preliminary report. (65) Effie Kalfagianni, Michigan State University Changyou Wang,UniversityofKentucky (974-57-183) (974-35-209) 4:00PM 3-dimensional topology inspired by number theory. 2:00PM Phase Transition in KdV Modulations. (66) Preliminary report. (52) Fei-Ran Tian, Ohio State University (974-35-98) Adam S. Sikora, CRM, Montreal (974-57-255) 2:30PM Euler equations with vacuum and damping. 4:30PM A combinatorial description of the Lie bialgebra of (53) Ronghua Pan, University of Michigan (974-35-214) (67) curves on surfaces. 3:00PM Discussion Moira Chas, SUNY at Stony Brook (974-57-240)

MARCH 2002 NOTICES OF THE AMS Appendix–5 Program of the Sessions – Ann Arbor, MI, Friday, March 1 (cont’d.)

Special Session on Integrable Systems and Poisson 10:30AM Alexander-Conway polynomial of links, spanning Geometry, I (77) trees and Milnor invariants. Arkady Vaintrob, University of Oregon 3:00 PM –4:50PM Room 1084, East Hall (974-57-160) Organizers: Anthony Bloch, University of Michigan 11:00AM Skein and String Homology. Preliminary report. (78) Uwe Kaiser, Boise State University (974-57-113) Philip Foth, University of Arizona Michael Gekhtman,Universityof Notre Dame Special Session on Topics in Geometric Function 3:00PM Poisson brackets for integrable systems and Theory, II (68) complex analysis. Preliminary report. Kirill Vaninsky, Michigan State University 8:30 AM – 11:20 AM Room 229, Dennison Building (974-35-129) Organizers: David A. Herron,Universityof 3:30PM The number of connected components in a generic Cincinnati (69) double Bruhat cells. Preliminary report. Nageswari Shanmugalingam, Mikhail Gekhtman, University of Notre Dame, University of Texas Mikhail Shapiro*, Michigan State University, and Alek Vainshtein, University of Haifa (974-22-177) Jeremy T. Tyson, SUNY at Stony Brook 4:00PM Integrable hamiltonian flows with positive metric 8:30AM Doyle’s Criterion of Type and a Counterexample to (70) entropy. (79) Nevanlinna’s Conjecture. Leo T Butler, Northwestern University (974-37-136) Sergei Merenkov, Purdue University (974-30-147) 4:30PM Integrable Systems and RankOne Conditions for 9:00AM Meromorphic functions of the form ∞ − (71) Rectangular Matrices. (80) f (z)= n=1 an/(z zn). Michael Gekhtman,NotreDame,andAlex John F Rossi*, Virginia Tech, and James K Kasman*, College of Charleston (974-35-26) Langley, University of Nottingham (974-30-18) 9:30AM Schwarz lemmas for bounded univalent functions. Invited Address (81) Eric D Schippers, University of Michigan (974-30-08) 5:10 PM –6:00PM Room 1324, East Hall 10:00AM Backward-iteration sequences with bounded p (82) hyperbolic steps for analytic self-maps of the disk. (72) Holder¨ and L estimates for b operators on CR manifolds of arbitrary codimensions. Pietro Poggi-Corradini, Kansas State University Lihe Wang, University of Iowa (974-32-257) and University of Michigan (974-30-23) 10:30AM Boundary curves and analytic continuation. (83) Robert P Kaufman, University of Illinois (974-30-81) 11:00AM The Inner Radius and Sequences of Domains Saturday, March 2 (84) (Preliminary Report). Preliminary report. Meeting Registration Leila Miller-Van Wieren,UniversityofTexas (974-30-219) 8:00 AM –4:30PM Atrium, East Hall Special Session on Commutative Algebra, II AMS Exhibit and Book Sale 8:30 AM – 11:20 AM Room 205, Dennison Building 8:00 AM –4:30PM Room 1372, East Hall Organizers: Florian Enescu,UniversityofUtah Special Session on Quantum Topology in Dimension AnuragK. Singh ,UniversityofUtah Three, II Karen E. Smith,Universityof Michigan, Ann Arbor 8:30 AM – 11:20 AM Room 224, Dennison Building 8:30AM Generalizing k-configurations and Macaulay’s Organizers: Charles Frohman,UniversityofIowa (85) O-sequences. Joanna Kania-Bartoszynska,Boise Sindi Sabourin, Queen’s University (974-13-207) State University 9:00AM Hilbert coefficients of normal ideals. Preliminary 8:30AM Presentations od Skein Algebras. Preliminary report. (86) report. (73) Mieczyslaw K. Dabkowski and Jozef H Przytycki*, Claudia Polini*, University of Notre Dame, Alberto George Washington University (974-57-104) Corso, University of Kentucky, and Maria Evelina Rossi, University of Genova (974-13-181) 9:00AM The Weyl quantization and the quantum group (74) quantization of the moduli space of flat 9:30AM The Castelnuovo-Mumford regularity of systems of SU(2)-connections on the torus are the same. (87) linear ideals and modules. Preliminary report. Razvan Gelca*, Texas Tech University, and Harm Derksen and Jessica Sidman*, University of Alejandro Uribe, University of Michigan Michigan (974-13-67) (974-57-76) 10:00AM Associated primes of the Mayr-Meyer ideals. 9:30AM The braid theoretical approach to skein modules of (88) Irena Swanson, New Mexico State University (75) 3-manifolds. Preliminary report. (974-13-106) Sofia Lambropoulou, National Technical University 10:30AM A power series problem motivativated by lifting of Athens (974-57-101) (89) higher derivations. 10:00AM Hochschild homology of a Heegaard splitting. William N Traves, U.S. Naval Academy (974-13-16) (76) Preliminary report. 11:00AM A linear function for stability of asymptotic primes. Michael S McLendon,UniversityofIowa (90) Daniel Katz*, University of Kansas, and Eric West, (974-57-245) Benedictine College (974-13-155)

Appendix–6 NOTICES OF THE AMS VOLUME 49, NUMBER 3 Ann Arbor, MI, Saturday, March 2 – Program of the Sessions

Special Session on Hyperbolic Manifolds and Discrete Anna M. Spagnuolo,Oakland Groups, II University 8:30AM Schistosomiasis Models for Interacting Human 8:30 AM – 11:20 AM Room 245, Dennison Building (103) Groups. Cheng-che Li, Zhilan Feng and Fabio Augusto Organizers: Richard D. Canary,Universityof *, Purdue University (974-92-59) Michigan, Ann Arbor Milner 9:00AM Contact with Adhesion and Wear in Bone-Implants. Alan W. Reid,UniversityofTexas, (104) , Oakland University (974-74-152) Austin Meir Shillor 9:30AM Modelling granuloma formation after 8:30AM Equivalent curves in surfaces. Preliminary report. (105) Mycobacterium tuberculosis infection: phagocytosis (91) Christopher J Leininger, University of Texas at and intracellular bacteria replication. Austin (974-57-247) David Gammack*, Charlie Doering and Denise 9:00AM Tameness persists in strong limits of Kirschner, University of Michigan (974-92-215) (92) type-preserving sequences of hyperbolic 3-manifolds. 10:00AM Mathematical modeling of the intravenous glucose (106) tolerance test by a delay differential equations Richard A Evans, Rice University (974-57-234) system. 9:30AM Cone-manifolds, drilling, and Ahlfors’ conjecture. Simeone Marino, University of Michigan Medical (93) Preliminary report. School (974-34-110) Jeffrey Brock*, University of Chicago, Kenneth 10:30AM Recent studies of an inverse source problem in Bromberg,Caltech,Richard Evans, Rice University,  (107) human brain imaging. Preliminary report. and Juan Souto, Universitat Bonn (974-51-187) GangBao , Michigan State University (974-35-87) 10:00AM On the density of geometrically finite Kleinian (94) groups. 11:00AM Turing patterns in Lengyel-Epstein (108) reaction-diffusion systems. Preliminary report. Jeff Brock, University of Chicago, and Kenneth Bromberg*, California Institute of Technology Moxun Tang*, Michigan State University, Wei-Ming (974-57-186) Ni, University of Minnesota, and JJang,Hankuk University, South Korea (974-92-117) 10:30AM The Orbifold Theorem. Preliminary report. (95) Daryl Cooper*, UCSB, CraigD Hodgson , Melbourne, and Steve P Kerckhoff,Stanford Special Session on Differential Geometry, I (974-57-35) 11:00AM The shape of hyperbolic Dehn surgery space. 8:30 AM – 11:25 AM Room 232, Dennison Building (96) Preliminary report. CraigHodgson , University of Melbourne, and Organizers: Lizhen Ji, University of Michigan, Ann Steve Kerckhoff*, (974-53-89) Arbor Krishnan Shankar,Universityof Michigan, Ann Arbor Special Session on Algebraic Combinatorics, II Ralf Spatzier, University of Michigan, Ann Arbor 8:30 AM – 11:20 AM Room 213, Dennison Building 8:30AM The rigidity of higher dimensional graph-manifolds. Organizers: Patricia Hersh, University of Michigan, (109) Jianguo Cao, University of Notre Dame Ann Arbor (974-53-212)

Brian D. Taylor, Wayne State University 9:15AM Unreduced weighted L2 cohomology of strictly 8:30AM Combinatorics of Resonances. (110) negatively quarter pinched manifolds of finite  (97) Dmitry N Kozlov, volume. Preliminary report. (974-05-77) Stephen S Bullock, University of Michigan (974-53-153) 9:00AM Analogues of the Lie character for GLn(q). (98) John Shareshian, Washington University, St. Louis 10:00AM Finsler Metrics of Constant Flag Curvature. (974-05-193) (111) Zhongmin Shen, Indiana Univ.-Purdue Univ. Indianapolis (974-53-225) 9:30AM Polygraph arrangements. (99) Axel Hultman, KTH, Stockholm (974-05-38) 10:45AM The π1 of manifolds with integrable geodesic flows. (112) Leo T Butler, Northwestern University (974-53-134) 10:00AM Permutation Enumeration by Pairs of Congruence (100) Classes of Major Index. Sheila Sundaram, Danbury, CT (974-05-107) Special Session on Partial Differential Equations, II 10:30AM Contractible and sphere-homotopic independence (101) complexes. Preliminary report. 8:30 AM – 11:20 AM Room 1360, East Hall Gabor Hetyei*, UNC Charlotte, and Richard Ehrenborg, University of Kentucky (974-05-29) Organizers: QingHan , University of Notre Dame 11:00AM A random walkon zero-one contingency tables. Lihe Wang,UniversityofIowa (102) Preliminary report. 8:30AM Structural analysis and boundary layer separations Diane Maclagan, Stanford University (974-05-125)  (113) of 2D incompressible flows. ShouhongWang , Indiana University (974-76-140) Special Session on Biological Applications of 9:00AM Multidimensional Transonic Shocks and Free Dynamical Systems, II (114) Boundary Problems. Gui-QiangChen , Northwestern University, and 8:30 AM – 11:20 AM Room 1060, East Hall Mikhail Feldman*, University of Wisconsin-Madison (974-35-131) Organizers: J. M. Cushing, University of Arizona 9:30AM Phase Transition in Nonlinear elasticity with Shandelle M. Henson,Andrews (115) viscosity and heat-conductivity. University Tao Luo, University of Michigan (974-35-259)

MARCH 2002 NOTICES OF THE AMS Appendix–7 Program of the Sessions – Ann Arbor, MI, Saturday, March 2 (cont’d.)

10:00AM New well-posedness results for the Camassa-Holm 10:00AM Coupled Boundary Value Perturbations for Solution (116) equation. (129) of the Navier-Stokes Equation with Large Viscosity Gerard Misiolek, University of Notre Dame Gradients. (974-35-199) Gregory Gillette, The Pennsylania State University 10:30AM Boundary Value Problems in Morrey Spaces for (974-34-83) (117) Elliptic Systems on Lipschitz Domains. 10:15AM A new method of analysis of associative algebras. Zhongwei Shen, University of Kentucky (974-35-50) (130) Preliminary report. 11:00AM Wigner Measure and the Semiclassical Limit of Vladimir Dergachev, Ann Arbor, Michigan (118) Schrodinger-Poisson¨ Equations. Preliminary report. (974-16-142) PingZhang , Academy of Mathematics and System 10:45AM Test Of Divisibility of the number 7. Preliminary Sciences, The Chinese Academy of Sciences, Beijing (131) report. (974-35-258) Ranjit Eswaran, University Of Minnesota (974-00-05) Special Session on Mapping Class Groups and 11:00AM A connection between closedness and local Geometric Theory of Teichmuller Spaces, II (132) compactness for families of A-harmonic functions. Kevin W. Roogvin, University of Michigan at Ann 8:30 AM – 11:20 AM Room 237, Dennison Building Arbor (974-35-184) 11:15AM Incompressible surface in a knot complement. Organizers: Benson Farb, University of Chicago (133) Preliminary report. Nikolai Ivanov, Michigan State Jinha Jun, Seoul National University (974-57-148) University Howard Masur, University of Illinois, Chicago Special Session on Algebraic Topology, II 8:30AM On the linearity problem for mapping class groups. (119) Hessam Hamidi-Tehrani*, B.C.C. of the City 9:00 AM – 11:20 AM Room 221, Dennison Building University of New York, and Tara E. Brendle, Columbia University (974-57-73) Organizers: Robert Bruner, Wayne State University 9:00AM Relations in the Torelli Group. Preliminary report. Igor Kriz, University of Michigan, Ann (120) Tara E. Brendle, Columbia University (974-57-82) Arbor 9:30AM The second homology groups of mapping class 9:00AM A chain model for the little 2-disks operad. (121) groups of orientable surfaces. (134) Preliminary report. Mustafa Korkmaz*, Middle East Technical James E. McClure*andJeffrey H. Smith,Purdue University, Ankara, Turkey, and Andras I Stipsicz, University (974-55-46) Princeton Univ. - ELTE TTK, Budapest, Hungary 9:30AM Derived Koszul duality for Ck-algebras. (974-57-53) (135) Po Hu, University of Chicago (974-55-64) 10:00AM Bounded cohomology of subgroups of mapping 10:00AM Cochains and Homotopy Type. (122) class groups. (136) Michael A. Mandell, University of Chicago Mladen Bestvina, University of Utah, and Koji (974-55-115) Fujiwara*, Tohoku University (974-20-75) 10:30AM The analytic circle-equivariant sigma orientation. 10:30AM Presentations for the mapping class groups of (137) Matthew Ando, Univ. of Illinois–Urbana (123) surfaces and handlebodies. (974-55-112) Susumu Hirose, Michigan State University / Saga University (974-57-91) 11:00AM Discussion 11:00AM Discussion

Session for Contributed Papers Special Session on Stochastic Modeling in Financial Mathematics, I 8:30 AM – 11:25 AM Room 257, Dennison Building 9:30 AM – 11:20 AM Room 1068, East Hall 8:45AM Nonstandard Finite Difference Schemes for (124) Nonlinear PDE’s: Theory and Applications. Organizer: Ronnie Sircar, Princeton University Ronald E Mickens, Clark Atlanta University 9:30AM Stochastic Volatility Asymptotics. (974-65-13) (138) Jean-Pierre Fouque, North Carolina State University 9:00AM A generalization of the Gauss-Bonnet theorem for (974-60-188) (125) surfaces. 10:00AM Analysis of Dependent Defaults via Intensity Marius Overholt, University of Tromsoe (139) BasedApproach, with Applications to Valuation of (974-53-74) BasketCredit Derivatives. 9:15AM Concentration of area in half-planes (preliminary Tomasz R Bielecki*, Northeastern Illinois (126) report). Preliminary report. University, and Marek Rutkowski, Warsaw Institute Roger W. Barnard, Alexander Yu. Solynin and of Technology (974-60-197) Clint Richardson*, Texas Tech University 10:30AM Optimal Bankruptcy Time and (974-30-108) (140) Consumption/Investment Policies on an Infinite 9:30AM On the Zeros of Sequences of Polynomials. Horizon with a Continuous Debt Repayment until (127) Gerard L. Ornas, Texas Tech University Bankruptcy. (974-30-241) Monique Jeanblanc, Universite d’Evry, and Peter 9:45AM Redefining ”Multiplicity of Infection” for Phage Lakner*, New York University (974-60-99)  (128) Therapy: a simple mathematical model. 11:00AM A new algorithm for hedging large portfolios of Alex Kasman*, College of Charleston, and Laura (141) derivative securities. Kasman, Medical University of South Carolina Stathis Tompaidis, University of Texas at Austin (974-92-27) (974-91-252)

Appendix–8 NOTICES OF THE AMS VOLUME 49, NUMBER 3 Ann Arbor, MI, Saturday, March 2 – Program of the Sessions

Special Session on Integrable Systems and Poisson 3:30PM Constructing manifolds which bound geometrically. Geometry, II (149) Darren Long*, UC Santa Barbara, and Alan W Reid, UT Austin (974-57-164) 10:00 AM – 11:20 AM Room 1084, East Hall 4:00PM real and complex hyperbolic manifolds. (150) Rich Schwartz, University of Maryland, College Organizers: Anthony Bloch, University of Michigan Park (974-51-201) Philip Foth, University of Arizona 4:30PM Bending bounds for Quasifuchsian groups. Michael Gekhtman,Universityof  (151) Preliminary report. Notre Dame Bridgeman J Martin, Boston College (974-51-137) AM 9:30 Discussion 5:00PM Generalized bending laminations for hyperbolic 10:00AM Biorthogonal Polynomials, Random Multimatrix (152) n-manifolds. Preliminary report. (142) Models and the Full Kostant-Toda Lattice. Kevin P Scannell, Saint Louis University Nicholas M Ercolani*, University of Arizona, and (974-57-158) Kenneth T.- R. McLaughlin,UniversityofNorth 5:30PM Bounded geometry for Teichmuller¨ geodesics. Carolina at Chapel Hill & University of Arizona (153) Kasra Rafi, UC Santa Barbara (974-51-224) (974-33-192) 10:30AM Qualitative Behavior of some non-Abelian Toda Special Session on Quantum Topology in Dimension (143) Equations. Preliminary report. Three, III Melinda Koelling*, Rennselaer Polytechnic Institute, Anthony Bloch, University of Michigan, 3:00 PM –4:50PM Room 224, Dennison Building and Michael Gekhtman, University of Notre Dame (974-34-235) Organizers: Charles Frohman,UniversityofIowa 11:00AM Moment maps and reductive symmetric pairs. Joanna Kania-Bartoszynska,Boise (144) Preliminary report. State University Reyer Sjamaar*andYi Lin, 3:00PM A sum formula for the Casson invariant via (974-58-200) (154) configuration spaces. Christine Lescop, Institut Fourier, CNRS, Grenoble, Special Session on Moduli Spaces, II France (974-57-238) 3:30PM Integrality for TQFTs. 10:00 AM –10:45AM Room 216, Dennison Building (155) Patrick M Gilmer, Louisiana State University Organizers: Angela Gibney,Universityof (974-57-132) Michigan, Ann Arbor 4:00PM Finite length TQFT, symplectic invariant theory and Gavril Farkas, University of Michigan, (156) the Casson invaraint. Preliminary report. Ann Arbor Thomas Kerler, The Ohio State University (974-57-178) Thomas Nevins,Universityof Michigan, Ann Arbor 4:30PM Combinatorial Construct of Modular Functors.  (157) Zhenghan Wang, Indiana University (974-57-102) Gilberto Bini, University of Michigan, Ann Arbor Special Session on Topics in Geometric Function 10:00AM Vanishing Theorems for the Moduli Space of Curves. (145) Ravi Vakil*, Stanford, and Tom Graber,Harvard Theory, III (974-14-185) 3:00 PM –4:50PM Room 229, Dennison Building Invited Address Organizers: David A. Herron,Universityof Cincinnati 11:40 AM – 12:30 PM Room 1324, East Hall Nageswari Shanmugalingam, (146) Hyperbolic manifolds, discrete groups and University of Texas quadratic forms. Jeremy T. Tyson, SUNY at Stony Brook Alan W Reid, University of Texas at Austin 3:00PM A Mobius invariant metric II. (974-57-161) (158) David Herron, University of Cincinnati, William Ma*, Pennsylvania College of Technology, and Invited Address David Minda, University of Cincinnati (974-30-34) n 3:30PM The Mobius¨ modulus of ring domains in R . 2:00 PM –2:50PM Room 1324, East Hall (159) Preliminary report. (147) Pricing and riskmanagement in incomplete Zair S Ibragimov, University of Michigan markets. (974-30-172) Thaleia Zariphopoulou, University of Texas, Austin 4:00PM Asymptotically Symmetric Embeddings and (160) Symmetric Quasicircles. Preliminary report. Special Session on Hyperbolic Manifolds and Discrete ShanshuangYang , Emory University (974-30-40) Groups, III 4:30PM Reflections on reflections in quasidisks. (161) Frederick W Gehring and Kari Hag*, University of 2:00 PM –5:50PM Room 245, Dennison Building Michigan (974-30-249) Organizers: Richard D. Canary,Universityof Michigan, Ann Arbor Special Session on Integrable Systems and Poisson Geometry, III Alan W. Reid,UniversityofTexas, Austin 3:00 PM –4:50PM Room 1084, East Hall 3:00PM The classification of Kleinian surface groups. (148) Preliminary report. Organizers: Anthony Bloch, University of Michigan Yair N Minsky, SUNY at Stony Brook (974-57-165) Philip Foth, University of Arizona

MARCH 2002 NOTICES OF THE AMS Appendix–9 Program of the Sessions – Ann Arbor, MI, Saturday, March 2 (cont’d.)

Michael Gekhtman,Universityof Gavril Farkas, University of Michigan, Notre Dame Ann Arbor 3:00PM Integrable systems of conservation laws and Thomas Nevins,Universityof (162) projective theory of congruences. Michigan, Ann Arbor S I Agafonov*andEVFerapontov, Department of Gilberto Bini, University of Michigan, Mathematical Sciences, Loughborough University, Ann Arbor United Kingdom (974-35-39) 3:00PM The rational cohomology of the moduli space of 3:30PM Topology of the real part of hyperelliptic Jacobian (174) principally polarized abelian 3-folds. (163) associated with the periodic Toda lattice. Richard M Hain, Duke University (974-14-60) Yuji Kodama, Ohio State University (974-51-175) 4:00PM Discussion 4:00PM Symplectic leaves in triangular Poisson Lie groups. (164) Milen Yakimov*, Cornell University, and Tim Hodges, University of Cincinnati (974-53-246) Special Session on Algebraic Combinatorics, III 4:30PM Integrable Spin Calogero-Moser Systems. (165) Luen-Chau Li*andPingXu , Pennsylvania State 3:00 PM –4:50PM Room 213, Dennison Building University, University Park (974-58-169) Organizers: Patricia Hersh, University of Michigan, Ann Arbor Special Session on Commutative Algebra, III Brian D. Taylor, Wayne State University 3:00PM A weighted enumeration of maximal chains in the 3:00 PM –4:50PM Room 205, Dennison Building (175) Bruhat order. Organizers: Florian Enescu,UniversityofUtah John R Stembridge, University of Michigan AnuragK. Singh ,UniversityofUtah (974-05-28) Karen E. Smith,Universityof 3:30PM Skew Schubert Polynomials. Michigan, Ann Arbor (176) Cristian Lenart, SUNY Albany, and Frank Sottile*, University of Massachusetts at Amherst (974-05-45) 3:00PM Big Cohen-Macaulay algebras in dimension three (166) via Heitmann’s theorem. 4:00PM Properties of the Betti numbers of Schubert Melvin Hochster, University of Michigan  (177) varieties. Preliminary report. (974-13-96) Gregory S. Warrington,Universityof Massachusetts at Amherst (974-05-130) 3:30PM Almost Mathematics and the Homological (167) Conjectures. 4:30PM Subword complexes in Coxeter groups. Paul C Roberts, University of Utah (974-13-72) (178) Allen Knutson,UCBerkeley,andEzra Miller*, M.I.T. (974-05-88) 4:00PM The F-signature of a ring of characteristic p. (168) Preliminary report. CraigHuneke and Graham J Leuschke*, University of Kansas (974-13-22) Special Session on Differential Geometry, II 4:30PM -signatures of local rings. Preliminary report. F 3:00 PM –5:00PM Room 232, Dennison Building (169) Ian M Aberbach*, University of Missouri, and Graham Leuschke,UniversityofKansas Organizers: Lizhen Ji, University of Michigan, Ann (974-13-55) Arbor Krishnan Shankar,Universityof Special Session on Algebraic Topology, III Michigan, Ann Arbor Ralf Spatzier, University of Michigan, 3:00 PM –4:50PM Room 221, Dennison Building Ann Arbor 3:00PM Rigidity of quasiconformal structures on the Organizers: Robert Bruner, Wayne State University (179) boundary of negatively curved manifolds. Igor Kriz, University of Michigan, Ann Chris Connell, University of Chicago (974-53-217) Arbor 3:45PM On Ricci Rankfor Nonpositively Curved Manifolds. 3:00PM On the S–dual of a circle. (180) Preliminary report. (170) Nicholas J. Kuhn, University of Virginia Fangyang Zheng, Ohio State University (974-53-51) (974-55-116) 4:30PM Discussion 3:30PM The Dold-Kan equivalence, simplicial rings and (171) DGAs. Brooke E Shipley, Purdue University (974-18-118) Special Session on Partial Differential Equations, III 4:00PM Topological equivalences of DGAs. Preliminary (172) report. 3:00 PM –4:50PM Room 1360, East Hall Daniel Dugger, Purdue University (974-55-195) Organizers: QingHan , University of Notre Dame 4:30PM The classification of p-compact groups for p odd. (173) Kasper K. S. Andersen,CRM,Barcelona,Jesper Lihe Wang,UniversityofIowa Grodal*, University of Chicago, Jesper M. Moller, 3:00PM Convex functions on the Heisenberg and Carnot University of Copenhagen, and Antonio Viruel, (181) groups. University of Malaga (974-55-180) Guozhen Lu*, Wayne State University, Juan J. Manfredi, University of Pittsburgh, and Bianca Stroffolini, Universita Degli Studi Di Napoli Special Session on Moduli Spaces, III Federico (974-35-206)

3:00 PM –4:45PM Room 216, Dennison Building 3:30PM Static Spherically Symmetric Solutions of Einstein  (182) SU(2) Yang Mills Equations. Organizers: Angela Gibney,Universityof Alexander N Linden, Indiana University Michigan, Ann Arbor (974-83-243)

Appendix–10 NOTICES OF THE AMS VOLUME 49, NUMBER 3 Ann Arbor, MI, Sunday, March 3 – Program of the Sessions

4:00PM Multiple Scale Models in Complex fluids. Preliminary (183) report. Sunday, March 3 Chun Liu, Dept of Math, Penn Stae University (974-35-205) Invited Address 4:30PM Quasiconvexity and restricted lower semicontinuity (184) in the calculus of variations. 9:00 AM –9:50AM Room 1324, East Hall BaishengYan , Michigan State University (974-35-93) (194) On the low dimensional Kakeya problem. Nets H. Katz, Washington University

Special Session on Mapping Class Groups and Geometric Theory of Teichmuller Spaces, III Special Session on Quantum Topology in Dimension Three, IV 3:00 PM –4:50PM Room 237, Dennison Building 10:00 AM – 12:50 PM Room 224, Dennison Building Organizers: Benson Farb, University of Chicago Organizers: Charles Frohman,UniversityofIowa Nikolai Ivanov, Michigan State University Joanna Kania-Bartoszynska,Boise State University Howard Masur, University of Illinois, Chicago 10:00AM On the structure of Ohtsuki series of 3-manifolds. (195) Preliminary report. 3:00PM The Geometry of the Weil-Petersson completion of Ruth Lawrence, Hebrew University of Jerusalem (185) Teichmuller¨ space. (974-57-31) Scott A. Wolpert, University of Maryland (974-30-220) 10:30AM The Jones polynomial and Temperley-Lieb (196) representations of braid groups. Preliminary report. 3:30PM Classification of Weil-Petersson Isometries. Ilya S. Kofman, Columbia University (974-57-198) (186) Georgios D. Daskalopoulos,BrownUniversity,and Richard A. Wentworth*, Johns Hopkins University 11:00AM Approximating knot invariants by Vassiliev (974-58-69) (197) invariants. Ilya Kofman, Columbia University, and Yongwu 4:00PM Moduli Spaces of Harmonic and Minimal Mappings Rong*, George Washington University (974-57-232) (187) of Surfaces. Preliminary report. Michael Wolf, Rice University (974-58-122) 11:30AM Cyclotomic expansions of quantum invariants of (198) 3-manifolds. Preliminary report. 4:30PM Divergent trajectories on noncompact spaces - ThangT Le , SUNY Buffalo (974-57-141) (188) rates and applications. Barak Weiss, Ben-Gurion University (974-37-228) NOON Some remarks on Property P. Preliminary report. (199) Oliver T Dasbach*andTao Li, Oklahoma State University (974-57-97) Special Session on Stochastic Modeling in Financial 12:30PM Hirasawa’s Seifert surfaces for A’Campo’s divide Mathematics, II (200) links. Preliminary report. Sergei V Chmutov,TheOhioStateUniversityat 3:00 PM –4:50PM Room 1068, East Hall Mansfield (974-57-173) Organizer: Ronnie Sircar, Princeton University 3:00PM Optimal execution with nonlinear cost functions Special Session on Topics in Geometric Function  (189) and trading-enhanced risk. Theory, IV Robert F Almgren, University of Toronto (974-49-135) 10:00 AM – 12:50 PM Room 229, Dennison Building 3:30PM Option pricing with stochastic volatility. Organizers: David A. Herron,Universityof (190) Knut Solna, University of California at Irvine Cincinnati (974-60-145) Nageswari Shanmugalingam, 4:00PM On the Convergence from Discrete to Continuous University of Texas (191) Time in an Optimal Stopping Problem. Paul Dupuis and Hui Wang*, Brown University Jeremy T. Tyson, SUNY at Stony Brook (974-60-204) 10:00AM Isoperimetric inequalities for polygons. (201) Alexander Yu. Solynin,SteklovInstituteof 4:30PM Financial price fluctuations in a stockmarketmodel (192) with many interacting agents. Mathematics at St. Petersburg and Texas Tech Ulrich Horst, Princeton University (974-60-133) University (974-30-230) 10:30AM The exponent of convergence and a theorem of (202) Astala. Invited Address Petra Bonfert-Taylor*andEdward C Taylor, Wesleyan University (974-30-80) 5:10 PM –6:00PM Room 1324, East Hall 11:00AM Circle Packings and Quasiconformal Maps. (203) Preliminary report. (193) Combinatorial models and algebraic questions in G Brock Williams, Texas Tech University the theory of computing. (974-30-171) Laszlo Babai, University of Chicago 11:30AM Aleksandrov Surfaces and Hyperbolicity. (204) Byung-Geun Oh, Purdue University (974-30-189) Reception (Sponsored by the Department of NOON Local Variations and Polarization Techniques. Mathematics) (205) Roger W Barnard*, Kent Pearce and Alexander Yu. Solynin, Texas Tech University (974-30-92) 6:00 PM –7:00PM Atrium, East Hall 12:30PM Discussion

MARCH 2002 NOTICES OF THE AMS Appendix–11 Program of the Sessions – Ann Arbor, MI, Sunday, March 3 (cont’d.)

Special Session on Integrable Systems and Poisson 11:00AM Diophantine approximation in negatively curved Geometry, IV (218) manifolds. Sa’ar David Hersonsky*, Ben-Gurion University, 10:00 AM – 12:20 PM Room 1084, East Hall Israel, and Frederic Paulin, ENS-PARIS (974-57-208) Organizers: Anthony Bloch, University of Michigan 11:30AM Classification of non-free 2-parabolic generator (219) Kleinian groups. Philip Foth, University of Arizona Ian Agol, University of Illinois at Chicago Michael Gekhtman,Universityof (974-57-06) Notre Dame NOON Imbedding free actions on handlebodies in free 10:00AM The Degree of Approximation of Analytic Functions (220) actions on 3-manifolds. (206) by Solitons. Darryl McCullough,UniversityofOklahoma Peter D Miller, University of Michigan (974-41-168) (974-57-30) 10:30AM Clifford algebras and the classical dynamical 12:30PM Laminations and groups of homeomorphisms of the (207) Yang-Baxter equation. (221) circle. Eckhard Meinrenken, University of Toronto Danny Calegari and Nathan M Dunfield*, Harvard (974-53-256) University (974-57-33) 11:00AM On variants of the Bruhat-Poisson structure. (208) Sam Evens, University of Notre Dame (974-53-218) 11:30AM Discussion Special Session on Moduli Spaces, IV NOON Discussion

10:00 AM – 12:15 PM Room 216, Dennison Building Special Session on Commutative Algebra, IV Organizers: Angela Gibney,Universityof 10:00 AM –1:20PM Room 205, Dennison Building Michigan, Ann Arbor Organizers: Florian Enescu,UniversityofUtah Gavril Farkas, University of Michigan, AnuragK. Singh ,UniversityofUtah Ann Arbor Karen E. Smith,Universityof Thomas Nevins,Universityof Michigan, Ann Arbor Michigan, Ann Arbor 10:00AM On the vanishing of local cohomology modules. Gilberto Bini, University of Michigan, (209) Gennady Lyubeznik, University of Minnesota Ann Arbor (974-13-100) 10:00AM A complex ball uniformization of the moduli space 10:30AM Properties of the Frobenius endomorphism. (222) of cubic surfaces via periods of K3 surfaces. (210) Claudia Miller, University of Toronto (974-13-253) Igor Dolgachev, University of Michigan (974-14-250) 11:00AM Core, adjoint and coefficient ideals (Preliminary (211) report). Preliminary report. 11:30AM The Chow ring of the moduli space of curves. Eero Hyry*, University of Helsinki, and Karen E (223) Preliminary report. Smith, University of Michigan (974-13-43) Tom B Graber, (974-14-179) 11:30AM Special tight closure and big ideals. (212) CraigHuneke and Adela Vraciu*, University of Kansas (974-13-94) Special Session on Algebraic Combinatorics, IV NOON Intersection homology D-modules and tight closure. (213) Preliminary report. 10:00 AM – 12:50 PM Room 213, Dennison Building Manuel Blickle,Universita¨t Essen, Germany (974-13-44) Organizers: Patricia Hersh, University of Michigan, 12:30PM Ramification of Valuations. Ann Arbor (214) SDaleCutkosky*, University of Missouri, and Brian D. Taylor, Wayne State University Olivier Piltant, CMAT-Ecole Polytechnique 10:00AM On the dual canonical basis of Uq(n). Preliminary (974-13-162) (224) report. 1:00PM Divisorial valuations of function fields with Bernard Leclerc, Universite de Caen, France. (215) irrational volume. (974-05-42) , University of Michigan (974-14-239) Alex Kuronya 10:30AM Sperner’s Lemma and Representation Theory.  (225) Preliminary report. Special Session on Hyperbolic Manifolds and Discrete Peter M Magyar, Michigan State University Groups, IV (974-05-105) 11:00AM A Tensor Product Theorem for Perfect Crystals. 10:00 AM – 12:50 PM Room 245, Dennison Building (226) Mark Shimozono, Virginia Tech (974-05-261) Organizers: Richard D. Canary,Universityof 11:30AM A short simplicial h-vector and the Upper Bound Michigan, Ann Arbor (227) Theorem. Alan W. Reid,UniversityofTexas, Patricia L Hersh, University of Michigan, Ann Austin Arbor, and Isabella Novik*, University of 10:00AM A-polynomial and Bloch invariant. Preliminary Washington (974-05-49) (216) report. NOON Quasisymmetric functions and Eulerian Walter D Neumann, Barnard College, Columbia (228) enumeration. University (974-57-221) Louis J Billera, Samuel K Hsiao*andStephanie 10:30AM Eigenvalue fields of hyperbolic manifolds. van Willigenburg, Cornell University (974-05-37) (217) Preliminary report. 12:30PM Inequalities for Polytopes. Emily Hamilton*, Emory University, and Alan W (229) Richard Ehrenborg,UniversityofKentucky Reid, University of Texas at Austin (974-57-36) (974-05-21)

Appendix–12 NOTICES OF THE AMS VOLUME 49, NUMBER 3 Ann Arbor, MI, Sunday, March 3 – Program of the Sessions

Special Session on Differential Geometry, III 11:00AM An illustration of the action of the Riemann (239) surfaces on the free loop space of a manifold. 10:00 AM – 12:10 PM Room 232, Dennison Building Moira Chas*, SUNY at Stony Brook, and Dennis Sullivan, SUNY at Stony Brook, CUNY (974-57-126) Organizers: Lizhen Ji, University of Michigan, Ann M Arbor 11:30AM The geometry of g and the normal function (240) associated to C − C−. Preliminary report. Krishnan Shankar,Universityof Richard M Hain, Duke University (974-14-61) Michigan, Ann Arbor NOON Lengths of Measured Laminations on Surfaces. Ralf Spatzier, University of Michigan, (241) FengLuo , Rutgers University (974-57-86) Ann Arbor 12:30PM Discussion 10:00AM Vector bundles with infinitely many souls. (230) Igor Belegradek, Caltech (974-53-138) Special Session on Stochastic Modeling in Financial 10:45AM Obstructions to nonnegative curvature and rational Mathematics, III (231) homotopy theory. Vitali Kapovitch*, University of California at Santa 10:00 AM – 11:50 AM Room 1068, East Hall Barbara, and Igor Belegradek, Caltech (974-53-14) Organizer: Ronnie Sircar, Princeton University 11:30AM The second twisted Betti number and the (232) convergence of collapsing manifolds with bounded 10:00AM Option pricing in the presence of large agents. curvature and diameter. (242) Mattias Jonsson*andJussi Keppo,Universityof Fuquan Fang, NanKai Institute of Mathematics, and Michigan (974-60-174) Xiaochun Rong*, Rutgers University and Beijing 10:30AM Are companies ready to hire? Normal University (974-53-68)  (243) Xin Guo, IBM T. J. Watson Research Center (974-60-191) 11:00AM Optimality in the Presence of Durable Good. Special Session on Partial Differential Equations, IV (244) Jussi S Keppo, University of Michigan (974-91-182) 11:30AM Stochastic Optimization Algorithms for Stock 10:00 AM – 11:50 AM Room 1360, East Hall (245) Liquidation. Preliminary report. G. Yin*, Wayne State University, Q. Zhang and R.H. Organizers: QingHan , University of Notre Dame Liu, University of Georgia (974-60-203) Lihe Wang,UniversityofIowa 10:00AM Uniqueness in the inverse conductivity problem for Susan J. Friedlander (233) conductivities with 3/2 derivatives in Lp for Associate Secretary p>2n. Chicago, Illinois Russell M. Brown*, University of Kentucky, and Rodolfo H. Torres,UniversityofKansas (974-35-236) 10:30AM A Bernstein problem for special Lagrangian  (234) equations. Yu Yuan, U. of Chicago and U. of Washington (974-35-119) 11:00AM Analyticity of the Cauchy Problem for an integrable (235) evolution equation. Alex A. Himonas, University of Notre Dame (974-35-196) 11:30AM The Global Dynamics of Isothermal Chemical (236) Systems with Critical Nonlinearity. Yi Li*, University of Iowa, and Yuan-Wei Qi,Hong Kong University of Science & Technology (974-35-260)

Special Session on Mapping Class Groups and Geometric Theory of Teichmuller Spaces, IV

10:00 AM – 12:50 PM Room 237, Dennison Building Organizers: Benson Farb, University of Chicago Nikolai Ivanov, Michigan State University Howard Masur, University of Illinois, Chicago 10:00AM Homology of moduli spaces of Riemann surfaces (237) with symplectic coefficients. Preliminary report. Myint Zaw*, The Abdus Salam ICTP, and Carl Friedrich Boedigheimer, Universitat Bonn (974-57-190) 10:30AM Stratification of the Moduli Space of Hyperelliptic (238) Surfaces. Anthony Weaver, City University of New York (974-51-56)

MARCH 2002 NOTICES OF THE AMS Appendix–13