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Program of the Sessions, New York, Volume 47, Number 11 Program of the Sessions New York, New York, November 4±5, 2000 Saturday, November 4 Special Session on Commutative Algebra, I 8:30 AM ± 10:50 AM Room 411, International Meeting Registration Affairs Building Organizers: Irena Peeva, Cornell University 7:30 AM ± 5:00 PM First Floor, Havemeyer Building Luchezar Avramov, Purdue University 8:30AM Secant Varieties of Segre Varieties and Monomial (6) Ideals. Preliminary report. AMS Exhibit and Book Sale Maria V Catalisano, University of Genoa, Anthony V Geramita*, Univ. of Genoa, Queen's Univ., and 7:30 AM ± 5:00 PM First Floor, Havemeyer Building Alessandro Gimigliano, University of Bologna (959-13-148) Special Session on Differential Algebra and Related 9:00AM Effective results on the homology of powers of a (7) maximal ideal. Topics, I Liana M Sega, Purdue University (959-13-173) n 8:30 AM ± 10:50 AM Room 410, International 9:30AM A formula of Solomon-Terao and bundles on P . Affairs Building (8) Mircea Mustata, U/C Berkeley, and Hal Schenck*, Harvard University (959-13-155) Organizers: Li Guo, Rutgers University at Newark 10:00AM De Rham cohomology, GrobnerÈ bases and William Keigher, Rutgers University at (9) strati®cations. Preliminary report. Newark Uli Walther, Purdue University (959-14-150) William Sit, City College (CUNY) 10:30AM Direct-sum decompositions over local rings. 8:30AM Using Ritt's characteristic sets to compute the (10) Roger A Wiegand, University of Nebraska (1) normalizers of the intransitive Lie algebras of (959-13-211) vector ®elds on the plane. Preliminary report. Phyllis Cassidy, Smith College (emerita) (959-12-283) Session for Contributed Papers, I 9:00AM Computing the Galois Group of 0 8:30 AM ± 10:25 AM Room 520, Mathematics Building (2) y(3) + ay + by =0,a,b∈C[x]. Preliminary report. Peter H Berman, North Carolina State University 9:00AM Functional Measure for Separable Systems with (959-12-178) (11) Dynamical Activity. 9:30AM Prounipotent Groups in Differential Galois Theory. C.S. Felicitas and M.W. Auslander*, C.F.C.T.E. (3) Andy R Magid, University of Oklahoma Foundation, Inc. (959-22-06) (959-12-157) 9:15AM Compositional Functions of Order N on Assymetric 10:00AM On a Generic Inverse Differential Galois Problem for (12) Fields of Analytic Data. Preliminary report. (4) GLn. C. S. Felicitas*andM. W. Auslander,CFCTE Lourdes Juan, MSRI (959-13-123) Foundation and Gottlieb Library (959-76-243) 10:30AM Model Theory and Differential Algebra. Preliminary 9:30AM The Mystery of Knots - Computer Programming for (5) report. I (13) Knot Tabulation. David E Marker, University of Illinois at Chicago Charilaos N Aneziris, Stony Brook, New York (959-03-128) (959-57-81) The time limit for each contributed paper in the sessions is ten minutes. found in Volume 21, 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 classi®cation 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 ¯agged with a solid triangle ( I) 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 classi®cation. Abstracts of papers presented in the sessions at this meeting will be Appendix±16 NOTICES OF THE AMS VOLUME 47, NUMBER 11 New York, NY, Saturday, November 4 ± Program of the Sessions 9:45AM Tangential Homoclinic Intersections in Rn. 10:00AM 1) Local fundamental groups and surface (14) Preliminary report. I (27) classi®cation ( an extension of a theorem of Victoria Rayskin, Boston University (959-37-92) Mumford). 10:15AM Angular Ratio Transference. Preliminary report. Fabrizio ME Catanese, University of Goettingen (959-14-208) I (15) James H Mulberry, AMS (959-51-110) 10:25AM Period doubling in the Tangent Family. Preliminary (28) report. Special Session on Arrangements of Hyperplanes, I Linda Keen*, CUNY Lehman and Graduate Center, and Janina Kotus, Institute of Mathematics, 8:40 AM ± 10:50 AM Room 207, Mathematics Building Technical Univerity of Warsaw (959-37-170) Organizers: Michael J. Falk, Northern Arizona University Special Session on Algebraic Geometry, I Alexander I. Suciu, Northeastern 9:00 AM ± 10:50 AM Room 417, Mathematics Building University 8:40AM Triples of arrangements and local systems. Organizers: Sorin Popescu, Columbia University (16) Daniel C Cohen, Louisiana State University Lev A. Borisov, Columbia University (959-52-182) 9:00AM Hurwitz numbers and Hodge integrals. Preliminary 9:15AM Incidence combinatorics of model constructions. (29) report. (17) Eva-Maria E Feichtner*, ETH Zurich, and Dmitry N Tom Graber*, Harvard, and Ravi Vakil,MIT Kozlov, Royal Institute of Technology, Stockholm, (959-14-247) Sweden (959-06-252) 9:30AM Hurwitz numbers and the tautological ring of the 9:50AM The cohomology rings of complements of subspace (30) moduli space of curves. (18) arrangements. Ravi Vakil*, M.I.T., and Tom Graber, Harvard Mark de Longueville*, University of Minnesota, and (959-14-169) Carsten A Schultz, Freie Universitaet Berlin 10:00AM Localization and Gromov-Witten theory. (959-52-104) (31) Rahul V. Pandharipande, Caltech (959-14-279) 10:25AM Equivariant Euler characteristics of braid 10:30AM Hyperquot schemes and rational curves on ¯ag (19) arrangements. Preliminary report. (32) varieties. Graham C Denham*andNicole M Lemire, Linda Chen, Columbia University (959-14-276) University of Oregon (959-20-275) Special Session on Nonlinear Partial Differential Special Session on the Topology of 3-Manifolds, I Equations, I 9:00 AM ± 10:50 AM Room 403, International 9:00 AM ± 10:50 AM Room 312, Mathematics Building Affairs Building Organizers: Joan S. Birman, Barnard College Organizers: Zheng-Chao Han, Rutgers University Brian S. Mangum, Barnard College A. Shadi Tahvildar-Zadeh, Princeton Walter D. Neumann, Barnard College University 9:00AM The Orbifold Theorem. Preliminary report. 9:00AM Singularities for solutions of the wave equation on (20) Daryl Cooper*, UCSB, Craig Hodgson, Melbourne, (33) conic manifolds. Preliminary report. and Steve Kerckhoff, Stanford (959-57-166) Richard B Melrose,MIT,andJared Wunsch*, SUNY 9:30AM Covering spaces and Dehn ®llings. Stony Brook (959-35-187) (21) Cynthia L. Curtis, The College of New Jersey 9:30AM Instantons, Characteristic Classes, and Nonlinear (959-57-198) I (34) Elliptic Equations. 10:00AM Towards uni®cation of number theory and Yisong Yang, Polytechnic University (959-35-125) (22) 3-dimensional topology. Preliminary report. 10:00AM Asymptotics for Maxwell-Chern-Simons vortices. Adam S Sikora, CRM/ISM (959-57-288) (35) Tonia Ricciardi, Dipartimento di Matematica e 10:30AM Mahler measure and Alexander polynomials of links. Applicazioni, UniversitÁa di Napoli ªFederico IIº (23) Daniel S Silver*andSusan G Williams, University (959-35-143) of South Alabama (959-57-103) 10:30AM Lp Estimates for the Wave Equation with a (36) Slowly-Decaying Potential. Preliminary report. John G Stalker*, Princeton University, Fabrice Special Session on Symbolic Computation and Planchon, CNRS, Paris VI, and A. Shadi Kleinian Groups, I Tahvildar-Zadeh, Rutgers University (959-35-268) 9:00 AM ± 10:45 AM Room 203, Mathematics Building Special Session on Riemannian Manifolds and Their Organizers: Jane P. Gilman, Rutgers University Limit Spaces, I Mika K. SeppÈalÈa, Florida State 9:00 AM ± 11:00 AM Room 405, International University Affairs Building 8:45AM Symbolic Computation on Kleinian Groups. (24) Preliminary report. Organizers: Xiaochun Rong, Rutgers University Jane Gilman, Rutgers-Newark (959-20-267) Christina Sormani, Lehman College, 9:10AM Hyperbolic Volumes. Preliminary report. CUNY (25) Gaven Martin*andT. Marshall, University of 9:00AM A class of generalized convex functions and its Auckland, New Zealand (959-20-293) (37) relation to warped products. Preliminary report. 9:35AM Hecke operators, arithmetic groups, and the Stephanie B Alexander*andRichard L. Bishop, (26) cohomology of subgroups of SL4(Z). University of Illinois at Urbana-Champaign Paul E Gunnells, Rutgers University (959-11-197) (959-53-164) DECEMBER 2000 NOTICES OF THE AMS Appendix±17 Program of the Sessions ± New York, NY, Saturday, November 4 (cont'd.) 9:45AM Differential Forms, Spinors and Bounded Curvature 4:50PM The surjectivity problem for one-generator, (38) Collapse. (49) one-relator extensions of torsion-free groups. John Lott, University of Michigan (959-58-118) Marshall M. Cohen*, Cornell University, and Colin 10:30AM A Sheaf Perspective on L2 Harmonic Forms. Rourke, Warwick University (959-20-160) (39) Preliminary report. 5:20PM The chameleon groups of Richard J. Thompson: Eugenie Hunsicker*, Lawrence University, and Rafe (50) categories with mutliplication. Mazzeo, Stanford University (959-53-263) Matt Brin, SUNY Binghamton (959-20-235) Special Session on Combinatorial Group Theory, I 9:30 AM ± 10:50 AM Room 404, International Special Session on the Topology of 3-Manifolds, II Affairs Building 2:30 PM ± 5:20 PM Room 312, Mathematics Building Organizers: Gilbert Baumslag, City College (CUNY) Organizers: Joan S. Birman, Barnard College Sean T. Cleary, City College (CUNY) Brian S. Mangum, Barnard College Alexei Myasnikov, City College (CUNY) Walter D. Neumann, Barnard College Vladimir Shplirain, City College (CUNY) 2:30PM Cusp volumes and cusp densities for hyperbolic (51) 3-manifolds. Preliminary report. 9:30AM Diophantine geometry for free groups, dimension of (40) algebraic varieties. Colin C Adams, Williams College (959-57-260) Olga Kharlampovich, McGill University, Canada 3:00PM Metric characterizations of spherical and Euclidean (959-20-204) (52) buildings.
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