AMS Sectional Meeting Program by Day
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2002 Central Section Meeting
Ann Arbor, MI, March 13, 2002
Meeting #974
Associate secretaries:
Susan J Friedlander, AMS
susan@math.northwestern.edu
Friday March 1, 2002

Friday March 1, 2002, 11:30 a.m.4:30 p.m.
Meeting Registration
Atrium, East Hall

Friday March 1, 2002, 11:30 a.m.4:30 p.m.
Exhibit and Book Sale
Room 1372, East Hall

Friday March 1, 2002, 1:00 p.m.4:50 p.m.
Special Session on Topics in Geometric Function Theory, I
Room 229, Dennison Building
Organizers:
David A. Herron, University of Cincinnati david.herron@math.uc.edu
Nageswari Shanmugalingam, University of Texas nageswari@math.utexas.edu
Jeremy T. Tyson, SUNY at Stony Brook tyson@math.sunysb.edu

1:00 p.m.
Geometric Characterizations of Gromov Hyperbolicity.
Stephen M. Buckley*, NUI Maynooth/U. Michigan
(97430223)

1:30 p.m.
Elliptic diffusions, exit times and the quasihyperbolic metric.
Craig A Nolder*, Department of Mathematics, Florida State University
(9746010)

2:00 p.m.
Symmetric Stable Processes Stay in Thick Sets.
JangMei Wu*, University of Illinois, University of Illinois, Urbana
(9743152)

2:30 p.m.
The Dirichlet problem for $p$harmonic functions in metric spaces.
Anders Bj\"orn*, Link\"oping University
Jana Bj\"orn, Lund University
Nageswari Shanmugalingam, University of Texas at Austin
(9743190)

3:00 p.m.
Viscosity solutions on Grushintype planes.
Thomas J. Bieske*, University of Michigan
(97435211)

3:30 p.m.
Approximation of Sobolev mappings.
P Hajlasz*, Warsaw University and University of Michigan
(97446233)

4:00 p.m.
${\cal H}^1$Estimates of Jacobians.
Jani Onninen*, University of Jyvaskyla
Tadeusz Iwaniec, Syracuse University
(97426231)

4:30 p.m.
On `Wolff Snowflakes.'.
John L Lewis*, University of Kentucky
Verchota C Greg, Syracuse University
Andrew L Vogel, Syracuse University
(9743020)

Friday March 1, 2002, 1:00 p.m.4:50 p.m.
Special Session on Commutative Algebra, I
Room 205, Dennison Building
Organizers:
Florian Enescu, University of Utah enescu@math.utah.edu.
Anurag K. Singh, University of Utah singh@math.utah.edu
Karen E. Smith, University of Michigan, Ann Arbor kesmith@math.lsa.umich.edu

1:00 p.m.
A "Strong Factorization Theorem" and some applications.
Ana Bravo*, University of Michigan
Santiago Encinas, Universidad de Valladolid, Spain
Orlando Villamayor U., Universidad Autonoma de Madrid, Spain
(97414124)

1:30 p.m.
Blowup algebras and homological degree.
Moira A. McDermott*, Gustavus Adolphus College
(97413121)

2:00 p.m.
Squarefree monomial ideals via facet ideals.
Sara Faridi*, George washington University
(97413139)

2:30 p.m.
Free resolutions for multigraded modules.
Hara Charalambous, University at Albany, SUNY
Alexandre Tchernev*, University at Albany, SUNY
(97413128)

3:00 p.m.
Multiplicities of Monomial Ideals.
Hema Srinivasan*, University of Missouri
Juergen Herzog, University of Essen
(97413120)

3:30 p.m.
Minimality for complexes and differential graded modules.
Luchezar L. Avramov*, University of NebraskaLincoln
(9741841)

4:00 p.m.
Gorenstein Liaison and the Construction of Gorenstein Algebras.
Jan Oddvar Kleppe, Oslo University College
Chris S Peterson*, Colorado State University / Purdue University
(97413170)

4:30 p.m.
BernsteinSato polynomials and cohomology of Milnor fibers.
Uli Walther*, Purdue University
(97414150)

Friday March 1, 2002, 1:00 p.m.4:50 p.m.
Special Session on Hyperbolic Manifolds and Discrete Groups, I
Room 245, Dennison Building
Organizers:
Richard D. Canary, University of Michigan, Ann Arbor canary@math.lsa.umich.edu
Alan W. Reid, University of Texas, Austin areid@math.utexas.edu

1:00 p.m.
Automatic structures and geometric estimates for Kleinian groups.
Bryan Mosher*, University of Michigan
(97457202)

1:30 p.m.
Infinite index subgroups of convergence groups.
Edward C Taylor*, Wesleyan University
Petra BonfertTaylor, Wesleyan University
(97430151)

2:00 p.m.
Bumping of Exotic Projective Structures.
Ken Bromberg, CalTech
John Holt*, University of Illinois at chicago
(97451103)

2:30 p.m.
Minimal volume Alexandrov spaces with applications to hyperbolic geometry.
Peter A Storm*, University of Michigan
(9745119)

3:00 p.m.
Some problems motivated by the onedimensional rigidity.
Nikolai V. Ivanov*, Michigan State Univesity
(97430143)

3:30 p.m.
Volume of tubes in hyperbolic 3manifolds (joint work with David Gabai and Robert Meyerhoff).
Peter L Milley*, Princeton University
(97457248)

4:00 p.m.
Double Lattice Packings of Disks in Euclidean Space.
Andrew Przeworski*, University of Texas at Austin
(97457146)

4:30 p.m.
Immersed surfaces in cusped hyperbolic 3manifolds.
Colin C Adams*, Williams College
Adam Colestock, Williams College
Danny Gillam, Wesleyan Univeristy
James Fowler, Harvard University
Eric Katerman, Williams College
(9745747)

Friday March 1, 2002, 1:00 p.m.4:20 p.m.
Special Session on Algebraic Topology, I
Room 221, Dennison Building
Organizers:
Robert Bruner, Wayne State University rrb@math.wayne.edu
Igor Kriz, University of Michigan, Ann Arbor ikriz@math.lsa.umich.edu

1:00 p.m.
The diagonal map of a Poincar\'e duality space.
John R Klein*, Wayne State University
(9745585)

1:30 p.m.
Topology of spaces of knots.
Dev Prakash Sinha*, University of Oregon and Brown University
(97455154)

2:00 p.m.
Representations and Ktheory of the Braid Groups.
Alejandro Adem*, University of Wisconsin
Dan Cohen, Louisiana State University
Fred Cohen, University of Rochester
(9745509)

2:30 p.m.
Obstruction Theory in Model Categories.
J Daniel Christensen*, University of Western Ontario
William G Dwyer, University of Notre Dame
Daniel C Isaksen, University of Notre Dame
(9745511)

3:00 p.m.
On Steenrod and DyerLashof operations in some mapping spaces.
Craig C. Westerland*, University of Michigan, Ann Arbor
(97455163)

3:30 p.m.
Fake TQFT's.
Tibor Beke*, University of Michigan, Ann Arbor
(97418167)

4:00 p.m.
On triviality of Dickson invariants in the homology of the Steenrod algebra.
Hung H. V. Nguyen*, Wayne State University
(9745595)

Friday March 1, 2002, 1:00 p.m.2:45 p.m.
Special Session on Moduli Spaces, I
Room 216, Dennison Building
Organizers:
Angela Gibney, University of Michigan, Ann Arbor agibney@math.lsa.umich.edu
Gavril M. Farkas, University of Michigan, Ann Arbor gfarkas@math.lsa.umich.edu
Thomas A. Nevins, University of Michigan, Ann Arbor nevins@math.lsa.umich.edu
Gilberto Bini, University of Michigan, Ann Arbor gbini@math.lsa.umich.edu

1:00 p.m.
Counting curves over finite fields and cohomology of moduli spaces I.
Carel Faber*, KTH (Stockholm)
Gerard Van der Geer, Universiteit van Amsterdam
(9741478)

2:00 p.m.
Counting curves over finite fields and cohomology of moduli spaces II.
Gerard Van der Geer*, Universiteit van Amsterdam m
Carel Faber, KTH (Stockholm)
(9741479)

Friday March 1, 2002, 1:00 p.m.4:50 p.m.
Special Session on Algebraic Combinatorics, I
Room 213, Dennison Building
Organizers:
Patricia Hersh, University of Michigan, Ann Arbor plhersh@math.lsa.umich.edu
Brian D. Taylor, Wayne State University bdt@math.wayne.edu

1:00 p.m.
Generalized associahedra.
Sergey Fomin*, University of Michigan
Andrei Zelevinsky, Northeastern University
(9740584)

1:30 p.m.
Obstructions to shifted families.
Art Duval*, University of Texas at El Paso
John W. Shareshian, Washington University
(97405111)

2:00 p.m.
Some Statistical Perspectives of a Path Counting Formula.
Devadatta Kulkarni*, Oakland University and GM R\&D
Ananda Sen, Oakland University
(97405262)

2:30 p.m.
Remarks on some connections between symmetric functions and resultants.
Mercedes H. Rosas*, Universidad Simón Bolívar
(9740554)

3:00 p.m.
Ordered planar trees and the slope variety of the complete graph.
Jeremy L Martin*, UC San Diego
(9740571)

3:30 p.m.
The CastelnuovoMumford regularity of subspace arrangements.
Harm Derksen, University of Michigan
Jessica S Sidman*, University of Michigan
(9741366)

4:00 p.m.
Some poset constructions motivated by commutative algebra.
Anders Bj\"orner, KTH (Kungl. Tekniska H\"ogskolan Stockholm)
Volkmar Welker*, PhilippsUniversit\"at Marburg
(97405149)

4:30 p.m.
Cohomology of toric varieties from a combinatorial viewpoint.
EvaMaria E Feichtner*, ETH Zurich
(97452210)

Friday March 1, 2002, 1:00 p.m.4:50 p.m.
Special Session on Biological Applications of Dynamical Systems, I
Room 1060, East Hall
Organizers:
J. M. Cushing, University of Arizona cushing@math.arizona.edu
Shandelle M. Henson, Andrews University henson@andrews.edu
Anna M. Spagnuolo, Oakland University spagnuol@oakland.ed

1:00 p.m.
Predicting immune regulatory elements in the immune response to {\it Mycobacterium tuberculosis}.
Denise Kirschner*, Dept. of Microbiology & Immunology/University of Michigan Med School
(97492213)

1:30 p.m.
The roles of cytotoxic T lymphocytes and TNF$\alpha$ in the immune response to {\it Mycobacterium tuberculosis}.
Brian M Murphy*, University of Michigan
Denise Kirschner, University of Michigan
(97492216)

2:00 p.m.
Lattice Effects Observed in Chaotic Dynamics of Experimental Populations.
Shandelle M. Henson*, Andrews University
(9749262)

2:30 p.m.
Temporal Patterns in Population Data: Order in Chaos.
R. F. Costantino*, University of Rhode Island
(97492166)

3:00 p.m.
A Convergence Theorem for Lattice Maps.
J M Cushing*, University of Arizona
(9743763)

3:30 p.m.
A StageStructured Model of Two Competing Species.
Jeffrey L. Edmunds*, Mary Washington College
(97437157)

4:00 p.m.
Stability of Standing Waves and Steady States for Some Nonlinear Equations.
Zhengfang Zhou*, Michigan State University
(97437222)

4:30 p.m.
The existence and uniqueness of a positive solution of an elliptic system.
Joon Hyuk Kang*, Andrews University
(97435156)

Friday March 1, 2002, 1:00 p.m.4:50 p.m.
Special Session on Partial Differential Equations, I
Room 1360, East Hall
Organizers:
Qing Han, University of Notre Dame qhan@nd.edu
Lihe Wang, University of Iowa lwang@math.uiowa.edu

1:00 p.m.
NonFormation of Vacuum States for the Compressible NavierStokes Equations.
Joel Smoller*, University of Michigan
(97435194)

1:30 p.m.
Subelliptic harmonic maps from Carnot groups.
Changyou Wang*, University of Kentucky
(97435209)

2:00 p.m.
Phase Transition in KdV Modulations.
FeiRan Tian*, Ohio State University
(9743598)

2:30 p.m.
Euler equations with vacuum and damping.
Ronghua Pan*, University of Michigan
(97435214)

3:00 p.m.
Discussion

3:30 p.m.
Constant Mean Curvature Immersions of Joachinsthal or Enneper type: Applications.
Henry C Wente*, University of Toledo
(97435254)

4:00 p.m.
A semilinear parabolic system for migration and selection in population genetics.
Yuan Lou*, Ohio State University
Thomas Nagylaki, University of Chicago
(9743557)

4:30 p.m.
Exact multiplicity for semilinear elliptic Dirichlet problems involving concave and convex nonlinearities.
Moxun Tang*, Michigan State University
(97435114)

Friday March 1, 2002, 1:00 p.m.4:50 p.m.
Special Session on Mapping Class Groups and Geometric Theory of Teichmuller Spaces, I
Room 237, Dennison Building
Organizers:
Benson Farb, University of Chicago farb@math.uchicago.edu
Nikolai Ivanov, Michigan State University ivanov@math.msu.edu
Howard Masur, University of Illinois, Chicago masur@math.uic.edu

1:00 p.m.
Large scale structure of the mapping class group.
Yair N Minsky*, SUNY at Stony Brook
Howard A Masur, U. of Illinois at Chicago
(97430176)

1:30 p.m.
Stable quasigeodesics in Teichmuller space.
Lee Mosher*, Rutgers University at Newark
(97430109)

2:00 p.m.
"On Superinjective Simplicial Maps of Complexes of Curves and Injective Homomorphisms of Mapping Class Groups".
Elmas Irmak*, Michigan State University
(9745748)

2:30 p.m.
Automorphisms of the Torelli group.
Benson Farb*, University of Chicago
(9745758)

3:00 p.m.
The coarse geometry of the WeilPetersson metric.
Jeffrey F. Brock*, University of Chicago
Benson Farb, University of Chicago
(97451144)

3:30 p.m.
Automorphisms of the Pants Complex.
Dan Margalit*, University of Chicago
(9745170)

4:30 p.m.
Thompson's groups, Teichmuller theory and algebraic topology.
William J Harvey*, King's College London
(97457244)

Friday March 1, 2002, 3:00 p.m.4:50 p.m.
Special Session on Quantum Topology in Dimension Three, I
Room 224, Dennison Building
Organizers:
Charles Frohman, University of Iowa frohman@math.uiowa.edu
Joanna KaniaBartoszynska, Boise State University kania@math.boisestate.edu

3:00 p.m.
Virtual Knot Theory.
Louis Hirsch Kauffman*, Univ of Ill at Chicago
(9745765)

3:30 p.m.
On knot adjacency.
Effie Kalfagianni*, Michigan State University
(97457183)

4:00 p.m.
3dimensional topology inspired by number theory.
Adam S. Sikora*, CRM, Montreal
(97457255)

4:30 p.m.
A combinatorial description of the Lie bialgebra of curves on surfaces.
Moira Chas*, SUNY at Stony Brook
(97457240)

Friday March 1, 2002, 3:00 p.m.4:50 p.m.
Special Session on Integrable Systems and Poisson Geometry, I
Room 1084, East Hall
Organizers:
Anthony Bloch, University of Michigan abloch@math.lsa.umich.edu
Philip Foth, University of Arizona foth@math.arizona.edu
Michael Gekhtman, University of Notre Dame Gekhtman.1@nd.edu

3:00 p.m.
Poisson brackets for integrable systems and complex analysis.
Kirill Vaninsky*, Michigan State University
(97435129)

3:30 p.m.
The number of connected components in a generic double Bruhat cells.
Mikhail Gekhtman, University of Notre Dame
Mikhail Shapiro*, Michigan State University
Alek Vainshtein, University of Haifa
(97422177)

4:00 p.m.
Integrable hamiltonian flows with positive metric entropy.
Leo T Butler*, Northwestern University
(97437136)

4:30 p.m.
Integrable Systems and Rank One Conditions for Rectangular Matrices.
Michael Gekhtman, Notre Dame
Alex Kasman*, College of Charleston
(9743526)

Friday March 1, 2002, 5:10 p.m.6:00 p.m.
Invited Address
H\"older and $L^p$ estimates for $\square_b$ operators on CR manifolds of arbitrary codimensions.
Room 1324, East Hall
Lihe Wang*, University of Iowa
(97432257)
Inquiries: meet@ams.org