AMS Sectional Meeting Program by Day
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1996 Fall Eastern Sectional Meeting
Lawrenceville, NJ, October 56, 1996
Meeting #914
Associate secretaries:
Lesley M Sibner, AMS
lsibner@duke.poly.edu
Saturday October 5, 1996

Saturday October 5, 1996, 8:00 a.m.10:50 a.m.
Special Session on Commutative Algebra, I
Room 321, Memorial Hall
Organizers:
Karen E. Smith, Massachusetts Institute of Technology kesmith@math.mit.edu
Irena Swanson, New Mexico State University iswanson@nmsu.edu

8:00 a.m.
Hilbert's Thirteenth Problem and Genus Zero Coverings
Shreeram S. Abhyankar*, Purdue University
(9141425)

8:30 a.m.
Puiseux Expansions In Nonzero Characteristic
Sanju Vaidya*,
(91413192)

9:00 a.m.
Noetherian rings between a local domain and its completion Noetherian rings between a local domain and its completion
William Heinzer, Purdue University
Christel Rotthaus, Michigan State Univ
Sylvia M. Wiegand*, Univ. of Nebraska
(91413234)

9:30 a.m.
On a Question of Matsumura
Susan Loepp*, Williams College
(91413126)

10:00 a.m.
On the Hilbert Function of an Orbit
Donna Glassbrenner*, Reed College
Stuart Reiter, Reed College
(91413268)

10:30 a.m.
Classification and divisor class groups of normal cubicsurfaces in $\bf P^3$.
Mike E. O'Sullivan*,
(91414232)

Saturday October 5, 1996, 8:00 a.m.10:50 a.m.
Special Session on Geometric Functional Analysis, I
Room 317, Memorial Hall
Organizers:
N. TomczakJaegermann, University of Alberta ntomczak@vega.math.ualberta.ca
Edward Odell, University of Texas, Austin odell@math.utexas.edu

8:00 a.m.
On Various Modes of Scalar Convergence in $L_0(X)$
Stephen J Dilworth*, Department of Mathematics, University of South Carolina
(91446109)

8:30 a.m.
Distances between Banach spaces
Nigel J. Kalton*, University of Missourii
Mikhailo I. Ostrovskii,
(9144670)

9:00 a.m.
Nonlinear Quotients
Sean M. Bates, Columbia University
William B. Johnson*, Texas A\&M University
Joram Lindenstrauss, The Hebrew University of Jerusalem
David Preiss, University College London
Gideon Schechtman, The Weizmann Institute of Science
(91446284)

9:30 a.m.
Invertible disjointness preserving operators.
Yuri Abramovich*,
Arkady Kitover,
(91446248)

10:00 a.m.
Stability problems and some solutions of some properties in Banach spaces.
Elias Saab*, University of Missouri
(9144618)

10:30 a.m.
Convolution Operators Associated to Vector Measures
Mangatiana A. Robedera,
Paulette Saab*,
(91446199)

Saturday October 5, 1996, 8:00 a.m.10:50 a.m.
Special Session on Infinite Groups and Group Rings, I
Room 220, Science Hall
Organizers:
Simon Thomas, Rutgers University, New Brunswick sthomas@lagrange.rutgers.edu
Samuel M. Vovsi, Rutgers University, New Brunswick vovsi@math.rutgers.edu

8:00 a.m.
Finitely generated groups that are isomorphic with their subgroups of finite index
Derek J. S. Robinson*, University of Illinois
(91420110)

8:30 a.m.
Permutable products of groups.
James C. Beidleman*, University of Kentucky
(9142060)

9:00 a.m.
A group problem of P. Erd{\" o}s and B.H. Neumann and some of its analogues.
LuiseCharlotte Kappe*, SUNY at Binghamton
(9142073)

9:30 a.m.
Locally (solublebyfinite) groups with all proper nonnilpotent subgroups of finite rank
Martyn R Dixon*,
Martin J Evans,
Howard Smith, University of Alabama
(9142043)

10:00 a.m.
On Finite and Locally Finite Subgroups of Free BurnsideGroups of Large Even Exponent
Sergei V Ivanov*, University of Illinois at UrbanaChampaign, Urbana, IL 61801
(91420148)

10:30 a.m.
On a class of parafree groups introduced by Gilbert Baumslag.
Benjamin Fine*, Fairfield Univesity
Gerhard Rosenberger, Universitat Dortmund, Germany
Michael Stille, Universitat Dortmund, Germany
(91420369)

Saturday October 5, 1996, 8:15 a.m.10:45 a.m.
Special Session on Geometric Topology, I
Room 201, Science Hall
Organizers:
Norman J. Levitt, Rutgers University, New Brunswick njlevitt@haven.ios.com
Georgia Triantafillou, Temple University georgia@euclid.math.temple.edu

8:15 a.m.
Embedding obstructions and $4$dimensional thickenings of $2$complexes.
Vyacheslav S. Krushkal*, Michigan State University
(9145740)

8:55 a.m.
Finite type 3manifold invariants and the Torelli group
Stavros Garoufalidis*, Harvard University
(91457338)

9:35 a.m.
Stability Theorems for Spaces of Holomorphic Maps
R. James Milgram*, Department of Mathematics, Stanford University
(91457155)

10:15 a.m.
Nonlinear similarity
Ian Hambleton,
Erik K. . Pedersen*, Binghamton University
(91457218)

Saturday October 5, 1996, 8:30 a.m.10:50 a.m.
Special Session on Homotopy Theory, I
Room 102, Science Hall
Organizers:
Martin Bendersky, Hunter College, City University of New York mbenders@shiva.hunter.cuny.edu
Donald M. Davis, Lehigh University dmd1@lehigh.edu

8:30 a.m.
New constructions with configuration spaces
Nicholas J. Kuhn*, University of Virginia
(9145579)

9:00 a.m.
Oddprimary BrownGitler spectra, $\Omega^2 S^3$, and $\pi^S_*$
David J. Hunter*, University of Virginia
(91455275)

9:30 a.m.
Mixing up the Adams and EilenbergMoore spectral sequences
Douglas C. Ravenel*, University of Rochester
(91457240)

10:00 a.m.
Finite localizations and the (really) classical Adams spectral sequence.
Paul L. Shick*, John Carroll University
(91455244)

10:30 a.m.
Twisted Tate Spectra
Robert R. Bruner*, Wayne State University
(91455291)

Saturday October 5, 1996, 8:30 a.m.10:50 a.m.
Special Session on Radon Transforms and Tomography, I
Room 304, Memorial Hall
Organizers:
Andrew G. Markoe, Rider University markoe@rider.edu
Eric Todd Quinto, Tufts University equinto@math.tufts.edu

8:30 a.m.
support theorems for the sphere transform
Yiying Zhou*, Tufts University
(9144495)

9:00 a.m.
Do solid tori have the Pompeiu property?
Carlos A. Berenstein*,
Dmitry Khavinson,
(91435277)

9:30 a.m.
Estimates for generalized Radon transforms with fold and cusp singularities
Allan T. Greenleaf*, University of Rochester
Andreas Seeger, University of Wisconsin
(91444139)

10:00 a.m.
titleInjectivity of Cosine and FunkRadon transforms on $k$planes.
Eric L. Grinberg*, Temple University
(9144491)

10:30 a.m.
Integral Geometry and the Kappa operator
Simon Gindikin*, Department of Mathematics, MIT
(91444344)

Saturday October 5, 1996, 8:30 a.m.10:50 a.m.
Special Session on Combinatorial and Computational Geometry, I
Room 221, Memorial Hall
Organizers:
William Steiger, Rutgers University, New Brunswick
Ileana Streinu, Smith College streinu@cs.smith.edu

8:30 a.m.
Approximating Shortest Paths on a Convex Polytope in Three Dimensions
Pankaj K. Agarwal*, Duke University
(91468202)

9:00 a.m.
DISCREPANCY THEORY AND COMPUTATIONAL GEOMETRY
Bernard Chazelle*, Princeton University
(91452332)

9:30 a.m.
Peter Piper placed a polygon on pickled points.
Matthew Dickerson*, Middlebury College
(91452315)

10:00 a.m.
On segment visibility graphs
Hazel J. Everett*,
Chinh T. Hoang,
Kyriakos Kilakos,
Marc Noy,
(91452211)

10:30 a.m.
Rounding 3d polyhedra
Steven J. Fortune*, Bell Laboratories
(91452297)

Saturday October 5, 1996, 8:30 a.m.10:50 a.m.
Special Session on Moduli Spaces of Vector Bundles Over Curves With or Without Additional Structure, I
Room 222, Science Hall
Organizers:
Hans Ulysses Boden, Max Planck Institute for Mathematics, Germany and McMaster University boden@icarus.mcmaster.ca
Emma Previato, Boston University ep@math.bu.edu

8:30 a.m.
Quantum Cohomology and the Verlinde Algebra
Sharad Agnihotri*, University of Texas at Austin
(91414132)

9:00 a.m.
On the Moduli Space of Polygonal Linkages on the 2Sphere.
Amy Jan Galitzer*, University of Maryland
(91451124)

9:30 a.m.
Torus actions and symplectic volumes of moduli spaces
Lisa Claire Jeffrey*, Mathematics Dept., McGill University
Jonathan Weitsman, Mathematics Dept., Univ. of California at Santa Cruz
(91458112)

10:00 a.m.
From polygons to vector bundles and back again
Jonathan A. Poritz*,
(91453231)

10:30 a.m.
A Perfect Morse Function on the Moduli Space of Flat Connections
Michael Thaddeus*,
(91414102)

Saturday October 5, 1996, 8:40 a.m.10:50 a.m.
Special Session on Algebraic Ktheory, I
Room 218, Memorial Hall
Organizers:
Charles A. Weibel, Rutgers University, New Brunswick weibel@lagrange.rutgers.edu

8:40 a.m.
Controlled Ktheory
Erik K. Pedersen*, Binghamton University
(91419216)

9:15 a.m.
On the Karoubi filtration of a category.
Manuel Cardenas*, University of Sevilla
Erik K. Pedersen, University of Binghamton
(91419214)

9:50 a.m.
Splitting Assembly Maps for Groups with Large actions at Infinity.
Boris Goldfarb*, Stanford University
(91419201)

10:25 a.m.
The homology of special linear groups over polynomial rings
Kevin P. Knudson*, Duke University
(9141954)

Saturday October 5, 1996, 9:00 a.m.10:50 a.m.
Special Session on Partial Differential Equations In Geometry, I
Room 302, Memorial Hall
Organizers:
Thomas Patrick Branson, University of Iowa branson@math.uiowa.edu
Robert C. McOwen, Northeastern University mcowen@neu.edu

9:00 a.m.
Asymptotics for the Singular Yamabe Problem
David L. Finn*, Merrimack College
(91435208)

9:30 a.m.
Prescribing Scalar curvature on $S^3$.
Wenziong Chen*, Southwest Missouri State University
Congming Li, University of Colorado
(91435366)

10:00 a.m.
Sharp Sobolev type inequalities on Riemannian manifolds with boundary
YanYan Li*, Rutgers University
Meijun Zhu, Rutgers University
(91435375)

10:30 a.m.
Applications of Variational Theory to the Scalar Curvature Equation
Abbas Bahri*, Rutgers University
(91435367)

Saturday October 5, 1996, 9:00 a.m.10:50 a.m.
Special Session on Operads, Hopf Algebras, and Categories, I
Room 303, Memorial Hall
Organizers:
Arthur M. Dupre, Rutgers University, New Brunswick dupre@math.rutgers.edu
James D. Stasheff, University of North Carolina, Chapel Hill jds@math.unc.edu

9:00 a.m.
An AdamsNovikov type spectral sequence based on Real cobordism
Igor Kriz*, University of Michigan
(91418306)

9:30 a.m.
Bousfield localization for $E_{\infty}$ rings
Gerald J. Dunn*,
(9145532)

10:00 a.m.
The Centrality of the KRH Link Invariants
Louis H. Kauffman,
David Radford,
Stephen F. Sawin*, M. I. T./Fairfield U.
(9141646)

10:30 a.m.
Pasting schemes and their topological tensor product
Michael S.J. Johnson*,
(91418207)

Saturday October 5, 1996, 9:00 a.m.10:50 a.m.
Special Session on Invariants of Smooth 4manifolds, I
Room 217, Memorial Hall
Organizers:
John W. Morgan, Columbia University
Frank S. Quinn, Virginia Polytechnic Institute and State University quinn@math.vt.edu

9:00 a.m.
Gauge theory and invariants of homology 4cobordism
Nikolai N. Saveliev*,
(9145721)

9:30 a.m.
Links of singularities in moduli spaces of nonabelian monopoles
Paul M. N. Feehan*, Harvard University
(9145858)

10:00 a.m.
${\underline {SW}}$=Milnor torsion
Guowu Meng*, Hong Kong University of Science and Technology
Clifford H. Taubes, Harvard University
(91451391)

10:30 a.m.
The Link of Reducibles in The Moduli Space of $SO(3)$ Monopoles
Thomas G Leness*, Michigan State University
(9145778)

Saturday October 5, 1996, 9:00 a.m.10:50 a.m.
Special Session on Automorphic Forms, I
Room 219, Memorial Hall
Organizers:
Henri Rene Darmon, McGill University darmon@math.princeton.edu
Fernando Rodriguez Villegas, Princeton University villegas@math.princeton.edu

9:00 a.m.
A converse theorem for Jacobi forms
Yves Martin*,
(91411349)

9:30 a.m.
Values and derivatives of Lseries over function fields
Douglas Ulmer*,
(91411300)

10:00 a.m.
A $p$adic operator on 1/2integral weight modular forms.
Adriana Sofer*, Princeton University
(91411328)

10:30 a.m.
Arithmetic Variation of Modular Forms
Daqing Wan*, Pennsylvannia State University
(91411197)

Saturday October 5, 1996, 9:00 a.m.10:40 a.m.
Contributed Papers,I
Room 318, Memorial Hall

9:00 a.m.
Two theorems of ArkinArneyErdos.
Joseph Arkin*, West Point
David C. Arney, West Point
Paul Erdos, Hungarian Academy of Sciences, Hungary
(91411317)

9:15 a.m.
Isomorphism Classes of Nonsingular Affine $k^*$surfaces
Sandra M Caravella*, Centenary College
(91414146)

9:30 a.m.
SullivanHaefliger model for mapping spaces for flagmanifolds.
Samuel B. Smith*, Saint Joseph's University
(9145506)

9:45 a.m.
Higher Order Convergence and the Newton Method
Carl M. Koreen*, Monmouth University
(91499377)

10:00 a.m.
From Pascal triangles to combinatorics.
Larry Ericksen*,
(9140541)

10:15 a.m.
Localy (solublebyfinite) groups with all proper insoluble subgroups of finite rank.
Howard Smith, Bucknell University
Martyn R. Dixon, University of Alabama
Martin J. Evans*, University of Alabama, Tuscaloosa
(91420376)

Saturday October 5, 1996, 9:30 a.m.10:50 a.m.
Special Session on Elliptic Surfaces,I
Room 306, Memorial Hall
Organizers:
William L. Hoyt, Rutgers University, New Brunswick hoyt@lagrange.rutgers.edu
Charles Freund Schwartz, Rider University schwartz@enigma.rider.edu

9:30 a.m.
A Classification of sections of certain elliptic surfaces
Charles F. Schwartz*, Rider University
(91414182)

10:00 a.m.
Twisted Legendre equations with MordellWeil rank $\leq 3$.
William L. Hoyt*, Rutgers University
Charles F. Schwartz, Rider University
(91414162)

10:30 a.m.
Comparing Canonical Heights and Weil Heights on Elliptic Surfaces
Gregory S. Call*, Amherst College
(91411295)

Saturday October 5, 1996, 10:00 a.m.10:50 a.m.
Special Session on Mirror Symmetry and Toric Varieties, I
Room 301, Memorial Hall
Organizers:
Ciprian S. Borcea, Rider University borcea@enigma@rider.edu
Sylvain E. Cappell, Courant Institute of Mathematical Sciences, New York University

10:00 a.m.
Degenerations of flag and Schubert varieties to toric varieties
Nicolae Gonciulea*,
Venkatramani Lakshmibai,
(91414123)

10:30 a.m.
Recent developments on elliptic CalabiYau manifolds
Antonella Grassi*, University of Pennsylvania
(91414298)

Saturday October 5, 1996, 11:00 a.m.11:10 a.m.
Opening Address
Welcoming remarks.
Theatre, Student Center
Presenters:
Phyllis M. Frakt, Vice President for Academic Affairs and Provost, Rider University

Saturday October 5, 1996, 11:10 a.m.12:00 p.m.
Invited Address
Geometric and linear structures in infinitedimensional Banach spaces.
Theatre, Student Center
Nicole TomczakJaegermann*, University of Alberta
(91446364)

Saturday October 5, 1996, 1:30 p.m.2:40 p.m.
Invited Address
Vanishing theorems in algebraic geometry: What they are and why we need them.
Theatre, Student Center
Karen E. Smith*, Massachusetts Institute of Technology
(9140001)

Saturday October 5, 1996, 2:30 p.m.4:50 p.m.
Special Session on Homotopy Theory, II
Room 102, Science Hall
Organizers:
Martin Bendersky, Hunter College, City University of New York mbenders@shiva.hunter.cuny.edu
Donald M. Davis, Lehigh University dmd1@lehigh.edu

2:30 p.m.
Ideals in the stable homotopy category: phantoms, ghosts and skeleta
J. Daniel Christensen*, Department of Mathematics, Massachusetts Institute of Technology
(9145599)

3:00 p.m.
Stable homotopy over the Steenrod algebra
John H. Palmieri*, Massachusetts Institute of Technology
(91455319)

3:30 p.m.
Stable homotopical algebra
Mark Hovey*, MIT
(91455181)

4:00 p.m.
Cobordism invariants associated to algebraic plane curves
Michael J. Hopkins*,
(91455258)

4:30 p.m.
Homotopy theory of sheaves
Andrey Y. Lazarev*, U. of Pennsylvania
(91455260)

Saturday October 5, 1996, 2:30 p.m.4:50 p.m.
Special Session on Mirror Symmetry and Toric Varieties, II
Room 301, Memorial Hall
Organizers:
Ciprian S. Borcea, Rider University borcea@enigma@rider.edu
Sylvain E. Cappell, Courant Institute of Mathematical Sciences, New York University

2:30 p.m.
Mirror Duality and stringtheoretic Hodge numbers
Victor V. Batyrev, University of Essen
Lev A. Borisov*, University of Michigan, Ann Arbor
(9141423)

3:00 p.m.
Mirror Symmetry and the HorrocksMumford bundle
Ciprian S. Borcea*, Rider University, Lawrenceville, NJ 08648
(91414245)

3:30 p.m.
Intersection Homology of Toric Varieties and a Conjecture of Kalai
Tom C. Braden*,
Robert D. MacPherson,
(91414221)

4:00 p.m.
Applications of Deformation theory of CalabiYau Threefolds
Mark Gross*,
(91414331)

4:30 p.m.
Crepant resolutions of orbifolds.
Anatoly Libgober*, Univ of Il at Chicago.
(91414166)

Saturday October 5, 1996, 2:30 p.m.5:20 p.m.
Special Session on Partial Differential Equations In Geometry, II
Room 302, Memorial Hall
Organizers:
Thomas Patrick Branson, University of Iowa branson@math.uiowa.edu
Robert C. McOwen, Northeastern University mcowen@neu.edu

2:30 p.m.
Some Bochnertype theorems in 4 dimensional conformal geometry
Matthew J. Gursky*,
(91435322)

3:00 p.m.
Sharp fractional integral inequalities, and the spectrum of intertwining operators.
Carlo Morpurgo*, University of Texas at Austin and Dipartimento di Matematica  Universita di Milano, Via Saldini, 50 Milan, Italy
(91458274)

3:30 p.m.
Geometric Inequalities in Kinetic Theory and Hydrodynamics
Eric A. Carlen*, School of Mathematics, Georgia Institute of Technology
(91460361)

4:00 p.m.
Sobolev inequalities, vortex dynamics and Lie groups
William Beckner*, University of Texas at Austin
(9145845)

4:30 p.m.
Analogs of P.D.E.'s on fractals.
Robert S. Strichartz*, Cornell University
(91435370)

5:00 p.m.
Wave propagation on symmetric spaces
Gestur Olafsson*, Louisiana State University
(91435381)

Saturday October 5, 1996, 2:30 p.m.4:20 p.m.
Special Session on Operads, Hopf Algebras, and Categories, II
Room 303, Memorial Hall
Organizers:
Arthur M. Dupre, Rutgers University, New Brunswick dupre@math.rutgers.edu
James D. Stasheff, University of North Carolina, Chapel Hill jds@math.unc.edu

2:30 p.m.
Twisting the quantum group $A(R)$ for a symmetric $R$
Horia C. Pop*, University of Iowa
(91417362)

3:00 p.m.
Combinatorial aspects of quantum convolution.
Earl J. Taft*, Rutgers University
(9141648)

3:30 p.m.
On the distinct Lie bialgebra structures of the Witt and Virasoro algebras
SiuHung Ng*, Rutgers University
(91417392)

4:00 p.m.
Existence of triangular Lie bialgebra structures.
Walter J. Michaelis*, University of New Orleans
(91417357)

Saturday October 5, 1996, 2:30 p.m.4:20 p.m.
Special Session on Elliptic Surfaces, II
Room 306, Memorial Hall
Organizers:
William L. Hoyt, Rutgers University, New Brunswick hoyt@lagrange.rutgers.edu
Charles Freund Schwartz, Rider University schwartz@enigma.rider.edu

2:30 p.m.
Divisibility of the Specialization Map for Twists of Abelian Varieties
Joseph H Silverman*, Brown University
(91411122)

3:00 p.m.
MordellWeil Groups in Procyclic Extensions
Lisa A Fastenberg*, Yale University
(91411111)

3:30 p.m.
Elliptic $K3$ surfaces with high MordellWeil rank.
Masato Kuwata*, Universit\'e de Caen
(91411289)

4:00 p.m.
The Cohomology Ring of the Fermat Quartic Surface
Marvin Tretkoff*, Stevens Institute
(91414247)

Saturday October 5, 1996, 2:30 p.m.5:20 p.m.
Special Session on Radon Transforms and Tomography, II
Room 304, Memorial Hall
Organizers:
Andrew G. Markoe, Rider University markoe@rider.edu
Eric Todd Quinto, Tufts University equinto@math.tufts.edu

2:30 p.m.
Density jumps and highresolution algorithms for $\Lambda$tomography
Adel Faridani*, Oregon State University
(91445217)

3:00 p.m.
Application of the Xray Transform to 3D Conformal Radiotherapy
Robert Y Levine*, MIT Lincoln Laboratory
Eugene A. Gregerson, MIT Lincoln Laboratory
(91492213)

3:30 p.m.
A Bayesian Approach to Reconstruction Using ImageModeling Gibbs Priors
Gabor T. Herman*, University of Pennsylvania
(91445115)

4:00 p.m.
Pseudodifferential operators with nonsmooth symbols and local tomography
Alexander J. Katsevich*, Los Alamos National Laboratory and University of Central Florida
(9144486)

4:30 p.m.
Pointwise inversion of the Radon transform
W. R. Madych*, University of Connecticut
(91444131)

5:00 p.m.
Limited angle exterior tomography and integral geometry
Eric Todd Quinto*, Tufts University
(91444250)

Saturday October 5, 1996, 2:30 p.m.4:45 p.m.
Special Session on Algebraic Ktheory, II
Room 218, Memorial Hall
Organizers:
Charles A. Weibel, Rutgers University, New Brunswick weibel@lagrange.rutgers.edu

2:30 p.m.
Cyclic polytopes and the $K$theory of truncated polynomial algebras
Lars Hesselholt*, Massachusetts Institute of Technology
Ib Madsen, Aarhus Universitet, Aarhus, Denmark
(91419184)

3:10 p.m.
Topological Hochschild Homology of Number Rings
Ayelet Lindenstrauss*, University of Pennsylvania
Ib Madsen, Aarhus University
(9141983)

3:45 p.m.
A candidate for a descent spectral sequence
Stavros Tsalidis*, Brown University
(91419282)

4:20 p.m.
On the pushforward of the metrized Poincare Bundle
Eitan Bachmat*, Brown University
(91419294)

Saturday October 5, 1996, 2:30 p.m.5:50 p.m.
Special Session on Automorphic Forms, II
Room 219, Memorial Hall
Organizers:
Henri Rene Darmon, McGill University darmon@math.princeton.edu
Fernando Rodriguez Villegas, Princeton University villegas@math.princeton.edu

2:30 p.m.
Realization of some Galois representations of low degree in MordellWeil groups
David E. Rohrlich*, Boston University
(91411325)

3:00 p.m.
Images of Galois Representations for Abelian Varieties
Michael J. Larsen*, University of Pennsylvania
Richard Pink,
(91411302)

3:30 p.m.
The reduction of some Shimura varieties
Georgios Pappas*,
(91411318)

3:50 p.m.
Break

4:30 p.m.
Explicit Elliptic Units
Farshid Hajir, California Institute of Technology
Fernando Rodriguez Villegas*, Princeton University
(91411230)

5:00 p.m.
Representations of $SL(2)\times G$
Kamal KhuriMakdisi*, Harvard University
(91411227)

5:30 p.m.
The ABC & D conjectures
Ram Murty*, Queen's University and McGill University
(91411190)

Saturday October 5, 1996, 2:30 p.m.5:50 p.m.
Special Session on Combinatorial and Computational Geometry, II
Room 221, Memorial Hall
Organizers:
William Steiger, Rutgers University, New Brunswick
Ileana Streinu, Smith College streinu@cs.smith.edu

2:30 p.m.
On the Lattice diameter of a convex body
Imre B\'ar\'any*, Mathematical Institute of the Hungarian Academy of Sciences
Zolt\'an F\"uredi, Dept. Mathematics, University of Illinois
(91452273)

3:00 p.m.
On the Independence Number of Minimum Distance Graphs
Gy\"orgy Csizmadia*, New York University, Courant Institute
(9145293)

3:30 p.m.
Random Weyl trees
Luc Devroye*, McGill University
(9146880)

4:00 p.m.
Finite and Infinite Families of Circles and Spheres
Herbert Edelsbrunner*,
(91452333)

4:30 p.m.
Lifting hyperplanes and the acuteness graph of a set of lines.
Boris Aronov, Polytechnic University
Jacob E. Goodman*, City College, CUNY
Richard Pollack, Courant Institute of Mathematical Sciences
(91452189)

5:00 p.m.
Random Triangulations
Luc Devroye, McGill University
Philippe Flajolet, INRIA  Rocquencourt
Ferran Hurtado, Universitat Politecnica de Catalunya
Marc Noy*, Universitat Politecnica de Catalunya
William Steiger, Rutgers University
(91452176)

5:30 p.m.
QuasiPlanar Graphs Have a Linear Number of Edges
Pankaj K. Agarwal, Duke University
Boris Aronov*, Polytechnic University
J\'anos Pach, Courant Institute of Mathematical Sciences
Richard Pollack, Courant Institute of Mathematical Sciences,
Micha Sharir, Tel Aviv University, Tel Aviv
(91452380)

Saturday October 5, 1996, 2:30 p.m.5:50 p.m.
Special Session on Moduli Spaces of Vector Bundles Over Curves With or Without Additional Structure, II
Room 222, Science Hall
Organizers:
Hans Ulysses Boden, Max Planck Institute for Mathematics, Germany and McMaster University boden@icarus.mcmaster.ca
Emma Previato, Boston University ep@math.bu.edu

2:30 p.m.
Geometric moduli problem
Alexander A. Voronov*, M.I.T.
(9141474)

3:00 p.m.
Lines and loci in the moduli space of $SL(2)$bundles on a curve
William M. Oxbury, University of Durham
Christian Pauly, Universidad Autonoma de Madrid
Emma Previato*, Boston University
(91414154)

3:30 p.m.
Strange Duality over an Elliptic Curve
Loring W. Tu*,
Ron Donagi,
(91414249)

4:00 p.m.
Abelian ChernSimons Theory (after Mihaela Manoliu)
Daniel S. Freed*, University of Texas at Austin
(91458307)

4:30 p.m.
Arrangements of lines in the projective plane and new nonquasiprojective fundamental groups
John J. Millson*, University of Maryland
(91414210)

5:00 p.m.
Moduli spaces of SL(2)characters over surfaces of low Euler characteristic
William M. Goldman*,
(91453105)

5:30 p.m.
Open Problems/Discussion

Saturday October 5, 1996, 2:30 p.m.5:50 p.m.
Special Session on Commutative Algebra, II
Room 321, Memorial Hall
Organizers:
Karen E. Smith, Massachusetts Institute of Technology kesmith@math.mit.edu
Irena Swanson, New Mexico State University iswanson@nmsu.edu

2:30 p.m.
Iterated quadratic transforms and valuation
Karen E. Smith, MIT
Roger Wiegand*, University of Nebraska, Lincoln
Sylvia Wiegand, University of Nebraska, Lincoln
(91414269)

3:00 p.m.
HilbertKunz functions of graded rings
Keith Pardue*, Queen's University
Ragnar Buchweitz, University of Toronto
Qun Chen, University of Toronto
(91413183)

3:30 p.m.
Lifting Modules and some consequences
David A Jorgensen*, University of Texas
(91413222)

4:00 p.m.
Minimally elliptic singularities and tight closure
Janet Cowden*, UCLA/Purdue University
(91413251)

4:30 p.m.
Coefficient modules over a $d$dimensional quasiunmixed normal local domain
JungChen Liu*, Purdue University
(91413165)

5:00 p.m.
Remarks on the Embedded Primary Components of Ideals in aNoetherian ring
Kishor M. Shah*, Southwest Missouri State University
(91413236)

5:30 p.m.
Tschirnhausen approximate roots in arbitary dimension and characteristic.
M. Spivakovsky*, University of Toronto
(91413353)

Saturday October 5, 1996, 2:30 p.m.5:50 p.m.
Special Session on Geometric Functional Analysis, II
Room 317, Memorial Hall
Organizers:
N. TomczakJaegermann, University of Alberta ntomczak@vega.math.ualberta.ca
Edward Odell, University of Texas, Austin odell@math.utexas.edu

2:30 p.m.
On Asymptotic Properties of Banach spaces under Renormings
Thomas Schlumprecht*, Texas A\&M University
Edward Odell, University of Texas at Austin
(91446309)

3:00 p.m.
On certain renormings of Tsirelson's space
Edward Odell*, University of Texas at Austin
Nicole Tomczak Jaegermann, University of Alberta
(91446206)

3:30 p.m.
Modified mixed Tsirelson spaces
Spiros A. Argyros,
Irene Deliyanni*,
Denka Kutzarova,
Antonis Manoussakis,
(91446270)

4:00 p.m.
The Krivine Theorem in Asymptotic Setting
Petr Habala*, University of Alberta
Nicole TomczakJaegermann, University of Alberta
(91446311)

4:30 p.m.
On the geometry of sequences in certain Banach spaces
Vladimir Gurariy*, Kent State University
(91446191)

5:00 p.m.
$1$complemented subspaces of $\ell_p(\ell_q)$
Beata Randrianantoanina*, University of Texas, Austin
(91446129)

5:30 p.m.
Maximal Norm of $C(S)$"
PeiKee Lin*,
(9144631)

Saturday October 5, 1996, 2:30 p.m.5:20 p.m.
Special Session on Infinite Groups and Group Rings, II
Room 220, Science Hall
Organizers:
Simon Thomas, Rutgers University, New Brunswick sthomas@lagrange.rutgers.edu
Samuel M. Vovsi, Rutgers University, New Brunswick vovsi@math.rutgers.edu

2:30 p.m.
On groups with periodic primitive elements
Efim I Zelmanov*, Yale University
(91420259)

3:00 p.m.
A solution of the dimension subgroup problem
Narain D Gupta*, University of Manitoba
(91420261)

3:30 p.m.
A small cancellation characterization of hyperbolic groups.
Robert H. Gilman*,
(91420200)

4:00 p.m.
Dehn functions of groups
Mark V. Sapir*, University of Nebraska, Lincoln
(91420262)

4:30 p.m.
The Howson property for exponential groups
Ilya Kapovich*, Rutgers University, New Brunswick
(9142062)

5:00 p.m.
Some recent results in computational group theory
Charles Sims*, Rutgers University, New Brunswick, NJ 08903
(91420265)

Saturday October 5, 1996, 2:45 p.m.5:15 p.m.
Special Session on Geometric Topology, II
Room 201, Science Hall
Organizers:
Norman J. Levitt, Rutgers University, New Brunswick njlevitt@haven.ios.com
Georgia Triantafillou, Temple University georgia@euclid.math.temple.edu

2:45 p.m.
Topics on four manifolds
Dennis Sullivan*, City University New York
(91457340)

3:25 p.m.
Invariants of branched covering.
Ronnie Lee*, Yale University
(91457363)

4:05 p.m.
On the character variety of threedimensional manifolds
Stamatis Dostoglou*,
(91457149)

4:45 p.m.
The Flux Homomorphism
Dusa McDuff*, SUNY Stony Brook
(91457293)

Saturday October 5, 1996, 3:00 p.m.4:50 p.m.
Special Session on Invariants of Smooth 4manifolds, II
Room 217, Memorial Hall
Organizers:
John W. Morgan, Columbia University
Frank S. Quinn, Virginia Polytechnic Institute and State University quinn@math.vt.edu

3:00 p.m.
Numerical SeibergWitten Invariants
John D. Randall*, Dept of Math \& CS, Rutgers University, Newark NJ 07102
(91457225)

3:30 p.m.
Stein manifolds and contact structures
Paolo Lisca, Universita' di Pisa, Italy
Gordana Matic*, University of Georgia
(91457137)

3:30 p.m.
Irreducible $4$manifolds need not be symplectic.
Zoltan Szabo*,
(91457396)

4:30 p.m.
(3+1)dimensional topological field theories from 2categories
Frank S. Quinn*,
(91457134)

Saturday October 5, 1996, 8:30 p.m.10:00 p.m.
Concert
A program of song featuring Schubert's Sheperd on the Rock.
Rider's Westminster Choir College, Princeton
Inquiries: meet@ams.org