AMS Sectional Meeting Program by Day
Current as of Tuesday, April 12, 2005 15:10:31
2003 Spring Eastern Sectional Meeting
New York, NY, April 1213, 2003
Meeting #986
Associate secretaries: Lesley M Sibner, AMS lsibner@duke.poly.edu
Sunday April 13, 2003

Sunday April 13, 2003, 8:00 a.m.12:00 p.m.
Meeting Registration
Lobby, Courant Building 
Sunday April 13, 2003, 8:00 a.m.10:50 a.m.
Special Session on Hopf Algebras and Quantum Groups, III
Room 1302, Courant Building
Organizers:
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
Earl J. Taft, Rutgers University etaft@math.rutgers.edu
Sarah J. Witherspoon, Amherst College sjwitherspoon@amherst.edu

8:00 a.m.
CoFrobenius Hopf algebras and the coradical filtration.
N. Andruskiewitsch, University of Cordoba
S. Dascalescu*, Kuwait University
(9861635) 
8:30 a.m.
Generalized cocommutative elements and Nakayama automorphisms.
Miriam Cohen*, BenGurion University
Sara Westreich, BarIlan University
(98616115) 
9:00 a.m.
Higher FrobeniusSchur indicators.
Yorck Sommerhäuser*, Universität München
(98616116) 
9:30 a.m.
Semisimple Hopf algebras of dimension $p^n$.
Yevgenia Kashina*, DePaul University
Mark Kleiner, Syracuse University
(9861697) 
10:00 a.m.
Semisimplicity of Hopf Algebra of Dimension $pq$.
SiuHung Ng*, Towson University
(9861686) 
10:30 a.m.
Quantum lines over noncocommutative cosemisimple Hopf algebras.
Corina Calinescu*, Rutgers University, New Brunswi
Sorin Dascalescu, Kuwait University
Akira Masuoka, University of Tsukuba
Claudia Menini, Ferrara University
(9861651)

8:00 a.m.

Sunday April 13, 2003, 8:00 a.m.10:50 a.m.
Special Session on Combinatorial and Statistical Group Theory, III
Room 1013, Courant Building
Organizers:
Alexei Myasnikov, City College, New York alexeim@att.net
Vladimir Shpilrain, City College, New York shpil@groups.sci.ccny.cuny.edu

8:00 a.m.
Geodesics in the Braid Group on Three Strands and a Related Group.
Lucas A Sabalka*, U. of Illinois at ChampaignUrbana
(98620160) 
8:30 a.m.
A Wilson group of nonuniformly exponential growth.
Laurent Bartholdi*, U. C. Berkeley
(98620127) 
9:00 a.m.
Nonpositive immersions, local indicability and coherence.
Daniel T. Wise*, McGill University
(98657164) 
9:30 a.m.
Uniform nonamenability.
Enric Ventura*, Universitat Politècnica de Catalunya
(9862083) 
10:00 a.m.
Removable Pairs in Trivial Braid Words.
Patrick Dehornoy*, Universite de Caen
(98620136) 
10:30 a.m.
On the coherence of coherentbycyclic groups.
Inna Bumagin*, McGill University
Daniel T Wise, McGill University
(98620181)

8:00 a.m.

Sunday April 13, 2003, 8:00 a.m.12:00 p.m.
Exhibit and Book Sale
13th Floor Lounge, Courant Building 
Sunday April 13, 2003, 8:15 a.m.10:45 a.m.
Special Session on Algebraic and Topological Combinatorics, III
Room 613, Courant Building
Organizers:
EvaMaria Feichtner, ETH, Zurich, Switzerland feichtne@math.ethz.ch
Dmitry N. Kozlov, University of Bern, Switzerland; and KTH, Stockholm, Sweden kozlov@math.ethz.ch

8:15 a.m.
Topological properties of active orders for matroid bases.
Bruce E Sagan*, Michigan State University
Rieuwert J Blok, Michigan State University
(9860670) 
8:55 a.m.
The noperfectmatching complex and related complexes.
Svante Linusson, Link\"oping University
John Shareshian*, Washington University
Michelle Wachs, University of Miami
Volkmar Welker, PhilippsUniversit\"at Marburg
(98605193) 
9:35 a.m.
Maps and graph colorings.
Erik K. Babson*, University of Washington, Seattle
Dmitry Kozlov, KTH
(98605216) 
10:15 a.m.
Topological questions on nonEuclidean oriented matroids.
Laura M Anderson*, Binghamton University
(98605225)

8:15 a.m.

Sunday April 13, 2003, 8:30 a.m.11:00 a.m.
Special Session on Algebraic Geometry, Integrable Systems, and Gauge Theory, III
Room 513, Courant Building
Organizers:
Marcos Jardim, University of Massachusetts, Amherst jardim@math.umass.edu
Eyal Markman, University of Massachusetts, Amherst markman@math.umass.edu

8:30 a.m.
Cohomology rings of symplectic quotients.
Lisa Claire Jeffrey*, University of Toronto
(98658108) 
9:10 a.m.
Classical geometry and Painleve VI.
Nigel J Hitchin*, Oxford University
(98614157) 
9:50 a.m.
Elliptic Sklyanin integrable systems.
Jacques Hurtubise*, McGill and CRM
Eyal Markman, U. Massachusetts
(98614143) 
10:30 a.m.
Discussion

8:30 a.m.

Sunday April 13, 2003, 8:30 a.m.10:50 a.m.
Special Session on Analytical and Computational Methods in Electromagnetics, III
Room 102, Courant Building
Organizers:
Alexander P. Stone, University of New Mexico astone@math.unm.edu
Peter A. McCoy, U. S. Naval Academy pam@usna.edu

8:30 a.m.
The inverse electromagnetic scattering problem for screens.
Fioralba Cakoni*, University of Delaware
(9863575) 
9:00 a.m.
Numerical Simulation of Electromagnetic Fields in a Complex, TwoDimensional Rectangular Cavity.
Terence J. Wieting*, US Naval Research Laboratory
Dong Ho Wu, US Naval Research Laboratory
Louis F. Libelo, SFA, Inc.
Michael I. Haftel, US Naval Research Laboratory
Jeff Braunstein, Rensselaer Polytechnic Institute
(98678227) 
10:00 a.m.
A DiffertentialGeometric Method in Electromagnetic Lens Design.
Alexander P Stone*, University of New Mexico
(98678104) 
10:30 a.m.
Artificial Boundary Conditions for the Numerical Simulation of Unsteady Waves Governed by Vector Models.
Semyon V Tsynkov*, North Carolina State University
(98665120)

8:30 a.m.

Sunday April 13, 2003, 8:30 a.m.10:50 a.m.
Special Session on Topological Aspects of Complex Singularities, III
Room 401, Main Building
Organizers:
Sylvain E. Cappell, NYUCourant Institute cappell@cims.nyu.edu
Walter D. Neumann, Barnard College, Columbia University neumann@math.columbia.edu
Agnes Szilard, Barnard College, Columbia University szilard@math.columbia.edu

8:30 a.m.
On the embedded resolution of cyclic surface singularities.
Agnes Szilard*, Barnard College, Columbia University
(98614214) 
9:00 a.m.
Recent progress in the study of some nonisolated singularities.
Lee J. McEwan*, The Ohio State University
(98614179) 
9:30 a.m.
On Hodge spectrum and multiplier ideals.
Nero Budur*, University of Illinois at Chicago
(9861434) 
10:00 a.m.
Stringy invariants for general singularities.
Willem Veys*, University of Leuven
(9861495) 
10:30 a.m.
Calculating Euler Characteristics of Vanishing Cycles.
David B. Massey*, Northeastern University
(9863266)

8:30 a.m.

Sunday April 13, 2003, 8:30 a.m.10:50 a.m.
Special Session on Contact and Symplectic Geometry, III
Room 411, Main Building
Organizers:
John B. Etnyre, University of Pennsylvania etnyre@math.upenn.edu
Joshua M. Sabloff, University of Pennsylvania sabloff@math.upenn.edu

8:30 a.m.
Fillings by pseudoholomorphic curves and the Chord Problem in Contact Geometry.
Casim Abbas*, Michigan State University
(9865337) 
9:00 a.m.
Counting pseudoholomorphic curves in fourmanifolds.
Michael Hutchings, UC Berkeley
Michael Sullivan*, University of Michigan
(9865345) 
9:30 a.m.
Contact homology, contact embeddings and a partial order of contactomorphisms.
Sang Seon Kim*, University of Southern California
(98653156) 
10:00 a.m.
Unknottedness of Lagrangian tori in the standard symplectic ${\mathbb R}^4$.
Alexander Ivrii*, Stanford University
(98653201) 
10:30 a.m.
Fredholm Theory and Transversality for Noncompact Pseudoholomorphic Curves in Symplectizations.
Dragomir L Dragnev*, University of Southern California
(9865848)

8:30 a.m.

Sunday April 13, 2003, 8:30 a.m.11:00 a.m.
Special Session on Nonlinear Partial Differential Equations in Differential Geometry, III
Room 405, Main Building
Organizers:
John C. Loftin, Columbia University loftin@math.columbia.edu
MuTao Wang, Columbia University mtwang@math.columbia.edu

8:30 a.m.
Remarks on a Class of Solutions to the Minimal Surface System.
MuTao Wang*, Columbia University
(98653137) 
9:10 a.m.
Analytic properties of harmonic maps into Teichmuller spaces.
Sumio Yamada*, University of Alabama at Birmingham
(98658145) 
9:50 a.m.
Special Lagrangian Submanifolds with Boundary and Lagrangian Free Boundary Plateau Problem.
Weiyang Qiu*, Harvard University
(98653140) 
10:30 a.m.
Deformations of $G_2$ Structures on Manifolds.
Spiro Karigiannis*, Harvard University
(98653139)

8:30 a.m.

Sunday April 13, 2003, 8:45 a.m.11:00 a.m.
Special Session on the History of Mathematics, III
Room 414, Main Building
Organizers:
Patricia R. Allaire, Queensborough Community College, CUNY pallaire@qcc.cuny.edu
Robert E. Bradley, Adelphi University bradley@adelphi.edu

8:45 a.m.
A Golden Decade: Euler in Berlin, 1746  1756  A Preliminary Study.
Ronald S. Calinger*, Catholic University of America
(98601218) 
9:30 a.m.
Euler's Solution of the Basel Problem  The Longer Story.
Ed Sandifer*, Western Connecticut State U
(9860165) 
10:00 a.m.
Euler's AllPurpose Counterexample.
Robert E. Bradley*, Adelphi University
(98601206) 
10:30 a.m.
d'Alembert's proof of the Fundamental Theorem of Algebra: mathematical issues.
Christopher Baltus*, SUNY College at Oswego
(9860150)

8:45 a.m.

Sunday April 13, 2003, 8:50 a.m.11:00 a.m.
Special Session on Rigidity in Dynamics, Geometry, and Group Theory, III
Room 408, Main Building
Organizers:
David Fisher, CUNY, Herbert H. Lehman College dfisher@alpha.lehman.cuny.edu
Steven E. Hurder, University of Illinois at Chicago
Kevin M. Whyte, University of Illinois at Chicago

8:50 a.m.
Flats in outer space.
Karen Vogtmann*, Cornell University
(98620220) 
9:40 a.m.
Quasiisometric rigidity for some nonuniform $S$arithmetic lattices.
Kevin Wortman*, University of Chicago
(98620210) 
10:10 a.m.
Centralizers of Partially Hyperbolic Diffeomorphisms.
Lizzie Burslem*, University of Michigan
(98637226) 
10:40 a.m.
Area preserving group actions on surfaces.
John Franks*, Northwestern University
Michael Handel, Lehman College, CUNY
(9863771)

8:50 a.m.

Sunday April 13, 2003, 8:55 a.m.10:50 a.m.
Special Session on LowDimensional Topology, III
Room 810, Main Building
Organizers:
James Conant, Cornell University jconant@polygon.math.cornell.edu
Slava Krushkal, University of Virginia krushkal@virginia.edu
Rob Schneiderman, NYUCourant Institute schneid@cims.nyu.edu

8:50 a.m.
$A$polynomial and Bloch invariants of hyperbolic 3manifolds.
Abhijit Champanerkar*, Columbia University
(9865753) 
9:20 a.m.
Lie bialgebras of curves on surfaces and their computation.
Moira Chas*, SUNY at Stony Brook
(98657165) 
10:10 a.m.
Remarks on combinatorial Yamabe flows.
Feng Luo*, Rutgers University
(98657125)

8:50 a.m.

Sunday April 13, 2003, 9:00 a.m.10:40 a.m.
Special Session on Galois Module Theory and Hopf Algebras, III
Room 813, Courant Building
Organizers:
Daniel R. Replogle, College of Saint Elizabeth dreplogle@CSE.edu
Robert G. Underwood, Auburn University underw@strudel.aum.edu

9:00 a.m.
Nearly perfect complexes and Weil étale cohomology.
David Burns*, King's College London, U.K.
(9861127) 
9:50 a.m.
Structure of a Quantum Hyperalgebra.
W. Chin, DePaul University
L. Krop*, DePaul University
(9861641) 
10:20 a.m.
Diagonalization of Representation Operators for the Quantum Algebra $U_q(su_{1,1})$.
N M Atakishiyev*, Instituto de Matematicas, UNAM
A U Klimyk, Instituto de Matematicas, UNAM
(9861630)

9:00 a.m.

Sunday April 13, 2003, 11:10 a.m.12:00 p.m.
Invited Address
The Riemannian geometry of the 2Wasserstein metric and the nonlinear kinetic FokkerPlanck equation.
Room 109, Courant Building
Wilfrid Gangbo*, Georgia Institute of Technology
(9863503) 
Sunday April 13, 2003, 1:30 p.m.2:20 p.m.
Invited Address
Asymptotic differential algebra.
Room 109, Courant Building
Matthias Aschenbrenner*, University of California Berkeley
(9860302) 
Sunday April 13, 2003, 2:30 p.m.5:20 p.m.
Special Session on Hopf Algebras and Quantum Groups, IV
Room 1302, Courant Building
Organizers:
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
Earl J. Taft, Rutgers University etaft@math.rutgers.edu
Sarah J. Witherspoon, Amherst College sjwitherspoon@amherst.edu

2:30 p.m.
Invariants of Skew Derivations.
Jeffrey Bergen*, DePaul University
Piotr Grzeszczuk, Bialystok Technical Institute
(98616100) 
3:00 p.m.
Representing relatively free coalgebras by formal sums.
Mikhail V. Kochetov*, University of Saskatchewan
(98616110) 
3:30 p.m.
Divided power Hopf algebras over integral domains.
Richard E. Block*, University of California Riverside
(98613112) 
4:00 p.m.
Local theory of almost split sequences for comodules.
William Chin*, DePaul University
Declan Quinn, Syracuse University
Mark Kleiner, Syracuse University
(9861692) 
4:30 p.m.
QuasiHopf algebras, Hopf modules, and monoidal categories.
Peter Schauenburg*, Mathematisches Institut, University of Munich, Ger
(98616114) 
5:00 p.m.
Schur Algebras and Enveloping Algebras.
Anthony Giaquinto*, Loyola University Chicago
(98616171)

2:30 p.m.

Sunday April 13, 2003, 2:30 p.m.5:50 p.m.
Special Session on Combinatorial and Statistical Group Theory, IV
Room 1013, Courant Building
Organizers:
Alexei Myasnikov, City College, New York alexeim@att.net
Vladimir Shpilrain, City College, New York shpil@groups.sci.ccny.cuny.edu

2:30 p.m.
Recent developments in the theory of Fuchsian and Kleinian groups.
Gerhard Rosenberger*, Universit\"at Dortmund
(9862059) 
3:00 p.m.
On NonTrivially Discriminating Groups.
Gilbert Baumslag, City University of New York
Benjamin Fine*, Fairfield University
Anthony M. Gaglione, United States Naval Academy
Dennis Spellman, Temple University
(98620203) 
3:30 p.m.
Arithmetic properties of lattices in rank 2 KacMoody groups over finite fields.
Lisa Carbone*, Rutgers University
(9862081) 
4:00 p.m.
Growth in semigroup varieties.
Lev M Shneerson*, Hunter College,The City University of New York
(98620155) 
4:30 p.m.
A partial result on the complexity of Whitehead's algorithm.
Donghi Lee*, College of Staten Island, CUNY
(98620196) 
5:00 p.m.
Groups generated by positive multitwists and the fake lantern problem.
Hessam HamidiTehrani*, New York, NY
(9862090) 
5:30 p.m.
Groups of simultaneously even and ptype.
Inna A Korchagina*, Rutgers, The State University of NJ
(98620208)

2:30 p.m.

Sunday April 13, 2003, 2:30 p.m.5:00 p.m.
Special Session on Algebraic Geometry, Integrable Systems, and Gauge Theory, IV
Room 513, Courant Building
Organizers:
Marcos Jardim, University of Massachusetts, Amherst jardim@math.umass.edu
Eyal Markman, University of Massachusetts, Amherst markman@math.umass.edu

2:30 p.m.
Supersymmetry and stability of Abranes.
Bobby Acharya, Rutgers University
Ron Donagi, University of Pennsylvania
Tony Pantev*, University of Pennsylvania
(98614195) 
3:10 p.m.
Instantonic calculus, equivariant cohomology and partition function of topological N=2 super YangMills theory.
Ugo Bruzzo*, International School for Advanced Studies
(98681174) 
3:50 p.m.
FourierMukai transform for noncommutative tori and mirror symmetry.
Alexander Polishchuk*, Boston University
(98614134) 
4:30 p.m.
Differential Isomorphism and Equivalence of Algebraic Varieties.
Yuri Berest*, Cornell University
George Wilson, Imperial College
(98614213)

2:30 p.m.

Sunday April 13, 2003, 2:30 p.m.3:50 p.m.
Special Session on the History of Mathematics, IV
Room 414, Main Building
Organizers:
Patricia R. Allaire, Queensborough Community College, CUNY pallaire@qcc.cuny.edu
Robert E. Bradley, Adelphi University bradley@adelphi.edu

2:30 p.m.
The Followers of Franklin.
Paul C. Pasles*, Villanova University
(9860144) 
3:00 p.m.
The Mathematics Curriculum At West Point: The First Hundred Years.
V. Frederick Rickey, United States Military Academy
Amy ShellGellasch*, United States Military Academy
(9860138) 
3:30 p.m.
Mathematical Aspects of Franz Reuleaux Kinematic Model Collection.
Daina Taimina*, Cornell University
(98601177)

2:30 p.m.

Sunday April 13, 2003, 2:30 p.m.5:30 p.m.
Special Session on Rigidity in Dynamics, Geometry, and Group Theory, IV
Room 408, Main Building
Organizers:
David Fisher, CUNY, Herbert H. Lehman College dfisher@alpha.lehman.cuny.edu
Steven E. Hurder, University of Illinois at Chicago
Kevin M. Whyte, University of Illinois at Chicago

2:30 p.m.
On spaces of higher spherical rank.
Ralf J Spatzier*, University of Michigan
(98653211) 
3:00 p.m.
The Properness Conjecture for 3Dimensional Affine Actions.
W. Goldman*, University of Maryland
F. Labourie, University of Paris, Sud
G. Margulis, Yale University
(98637130) 
3:30 p.m.
Strong isospectrality for groups of Lorentzian transformations.
Todd A. Drumm*, Swarthmore College
Virginie Charette, University of Manitoba
William M. Goldman, University of Maryland
(9865173) 
4:10 p.m.
Coding of geodesics on modular surfaces.
Svetlana Katok*, The Pennsylvania State University
(98620222) 
4:40 p.m.
Cohomology of skew extensions of hyperbolic systems.
Dmitry Dolgopyat*, University of Maryland
(98637205) 
5:10 p.m.
Topological Models of Simple Siegel Polynomials.
Gaofei Zhang*, The City University of New York
(9863728)

2:30 p.m.

Sunday April 13, 2003, 2:30 p.m.3:50 p.m.
Special Session on Contact and Symplectic Geometry, IV
Room 411, Main Building
Organizers:
John B. Etnyre, University of Pennsylvania etnyre@math.upenn.edu
Joshua M. Sabloff, University of Pennsylvania sabloff@math.upenn.edu

2:30 p.m.
Symplectomorphism groups of toric manifolds.
Dusa McDuff*, Stony Brook University
(98653138) 
3:00 p.m.
The HoferZehnder capacity near symplectic submanifolds.
Ely Kerman*, SUNY Stony Brook
(98637154) 
3:30 p.m.
Locally conformal Dirac structures and infinitesimal automorphisms.
Aissa Wade*, The Pennsylvania University
(98653162)

2:30 p.m.

Sunday April 13, 2003, 2:30 p.m.5:40 p.m.
Special Session on Nonlinear Partial Differential Equations in Differential Geometry, IV
Room 405, Main Building
Organizers:
John C. Loftin, Columbia University loftin@math.columbia.edu
MuTao Wang, Columbia University mtwang@math.columbia.edu

2:30 p.m.
Alexandrov type inequalities for CartanHadamard manifolds.
Joel Spruck*, Johns Hopkins University
(98635101) 
3:10 p.m.
The Local Isometric Embedding Problem for 2Dimensional Riemannian Manifolds.
Marcus A. Khuri*, University of Pennsylvania
(98635172) 
3:50 p.m.
A glueing theorem for the GinzburgLandau equations in higher dimensions.
Simon A Brendle*, Princeton University
(9865376) 
4:30 p.m.
Almost Rigidity and Stability.
Christina Sormani*, Lehman College, CUNY
(98658189) 
5:10 p.m.
Mean Curvature Flows and Homotopy of Maps Between Spheres.
MaoPei Tsui*, Columbia University
(98653148)

2:30 p.m.

Sunday April 13, 2003, 2:30 p.m.4:10 p.m.
Special Session on LowDimensional Topology, IV
Room 810, Main Building
Organizers:
James Conant, Cornell University jconant@polygon.math.cornell.edu
Slava Krushkal, University of Virginia krushkal@virginia.edu
Rob Schneiderman, NYUCourant Institute schneid@cims.nyu.edu

2:30 p.m.
Nocyclic Covers of Knot Complements.
Nathan D Broaddus*, Columbia University
(98657131) 
3:00 p.m.
Straight lines intersecting a knot in four points.
Ryan Budney*, Rochester
Jim Conant, Cornell
Kevin Scannell, New York NY
Dev Sinha, New York NY
(98657107) 
3:30 p.m.
Stabilization in the braid groups.
Joan Birman*, Columbia University, Barnard College
(98657132)

2:30 p.m.

Sunday April 13, 2003, 2:45 p.m.5:15 p.m.
Special Session on Algebraic and Topological Combinatorics, IV
Room 613, Courant Building
Organizers:
EvaMaria Feichtner, ETH, Zurich, Switzerland feichtne@math.ethz.ch
Dmitry N. Kozlov, University of Bern, Switzerland; and KTH, Stockholm, Sweden kozlov@math.ethz.ch

2:45 p.m.
Some remarks about locallydefined combinatorial invariants.
Robin Forman*, Rice University
(98657199) 
3:25 p.m.
Combinatorialtopological aspects of hyperbolic volume.
Ruth Kellerhals*, University of Fribourg
(98652147) 
4:05 p.m.
Spreads of nonsingular pairs in symplectic vector spaces.
Steven H. Weintraub*, Lehigh Univ.
(9865220) 
4:45 p.m.
Cluster algebras and Poisson Geometry.
Michael Shapiro*, Michigan State University
Michael Gekhtman, University of Notre Dame
Alek Vainshtein, University of Haifa
(98657151)

2:45 p.m.

Sunday April 13, 2003, 3:00 p.m.4:20 p.m.
Special Session on Topological Aspects of Complex Singularities, IV
Room 401, Main Building
Organizers:
Sylvain E. Cappell, NYUCourant Institute cappell@cims.nyu.edu
Walter D. Neumann, Barnard College, Columbia University neumann@math.columbia.edu
Agnes Szilard, Barnard College, Columbia University szilard@math.columbia.edu

3:00 p.m.
Topological Invariants of Stratified Maps with NonWitt Target.
Markus Banagl*, University of Cincinnati
(9865772) 
3:30 p.m.
Bifurcations in Gradient Systems with Symmetry.
Christopher M. Herald*, University of Nevada, Reno
(9865780) 
4:00 p.m.
Intersection Alexander Polynomials.
Greg Friedman*, Yale University
(9865778)

3:00 p.m.