AMS Sectional Meeting Full Program
Current as of Tuesday, April 12, 2005 15:10:31
2003 Spring Western Section Meeting
San Francisco, CA, May 34, 2003
Meeting #987
Associate secretaries: Michel L Lapidus, AMS lapidus@math.ucr.edu, lapidus@mathserv.ucr.edu
Saturday May 3, 2003

Saturday May 3, 2003, 7:30 a.m.4:00 p.m.
Meeting Registration
Main Lobby (3rd Floor), Thornton Hall 
Saturday May 3, 2003, 7:30 a.m.4:00 p.m.
Exhibit and Book Sale
Room 331, Thornton Hall 
Saturday May 3, 2003, 8:00 a.m.10:40 a.m.
Special Session on Efficient Arrangements of Convex Bodies, I
Room 211, Thornton Hall
Organizers:
Dan P. Ismailescu, Hofstra University ismailes@CIMS.nyu.edu
Wlodzimierz Kuperberg, Auburn University kuperwl@auburn.edu

8:00 a.m.
The cardinality of a finite saturated packing of convex bodies in $E^d$.
Valeriu Soltan*, George Mason University
(9875245) 
8:30 a.m.
Lattice packings with a gap are not completely saturated.
Greg Kuperberg, UCDavis
Krystyna Kuperberg*, Auburn University
Wlodzimierz Kuperberg, Auburn University
(9875286) 
9:00 a.m.
On an area inequality related to Tarski's plank problem.
Andras Bezdek*, Auburn University, AL
(98752159) 
9:30 a.m.
Cyclic polytopes,hyperplanes and codes.
T Bisztriczky*, U. of Calgary
K. Boroczky, Jr., Renyi Institute
D S Gunderson, U. of Manitoba
(9875249) 
10:00 a.m.
Isohedral multiple tilings of the sphere and isohedral polyhedra related to them.
Branko Grünbaum*, University of Washington, Seattle, WA 98195
(9875234)

8:00 a.m.

Saturday May 3, 2003, 8:00 a.m.10:50 a.m.
Special Session on Numerical Methods, Calculations and Simulations in Knot Theory and Its Applications, I
Room 327, Thornton Hall
Organizers:
Jorge Alberto Calvo, North Dakota State University jorge_calvo@ndsu.nodak.ed
Kenneth C. Millett, University of California Santa Barbara millett@math.ucsb.edu
Eric J. Rawdon, Duquesne University rawdon@mathcs.duq.edu

8:00 a.m.
Numerical simulations of random knotting using the FVM method.
Rob Scharein*, Centre for Experimental and Constructive Mathematics
Greg Buck, St. Anselm College
(98755193) 
8:30 a.m.
Thermodynamics and Topology of Disordered Knots: Correlations in Trivial Lattice Knot Diagrams.
Sergei Nechaev*, LPTMS (Orsay, France)
(9876298) 
9:00 a.m.
Scaling behavior of the average crossing number in equilateral random knots.
Akos Dobay, University of Lausanne
Yuanan Diao, University of North Carolina at Charlotte
Rob Kusner, University of Massachusetts at Amherst
Andrzej Stasiak*, University of Lausanne
(98754142) 
9:30 a.m.
Scaling Behavior of Closed and Open Random Knots.
Akos Dobay*, University of Lausanne
Dubochet Jacques, University of Lausanne
Kenneth C. Millett, University of California, Santa Barbara
PierreEdouard Sottas, Swiss Federal Institute of Technology
Andrzej Stasiak, University of Lausanne
(98765140) 
10:00 a.m.
Topological entropic force associated with the topological swelling of random knots and links.
Tetsuo Deguchi*, Dept. of Physics, Ochanomizu University
(98782105) 
10:30 a.m.
An Exploration of the Local Structure of Knot Space.
Kenneth C. Millett*, University of California,Santa Barbara
(98757201)

8:00 a.m.

Saturday May 3, 2003, 8:00 a.m.10:40 a.m.
Special Session on PDEs and Applications in Geometry, I
Room 325, Thornton Hall
Organizers:
Qi S. Zhang, University of California Riverside qizhang@math.ucr.edu

8:00 a.m.
Existence and Nonexistence Results on Nonlinear Equations.
Mingxin Wang*, Southeast University
(98735204) 
9:00 a.m.
$L^p_\delta$ spaces, heat semigroups and applications to nonlinear parabolic and elliptic problems.
Philippe P Souplet*, Univ. de Picardie and Univ. de Versailles, France
(98735179) 
10:00 a.m.
The Convergent Rate for Solutions of Dirichlet Problems of Quasilinear Equations.
Zhiren Jin*, Wichita State University
Kirk Lancaster, Wichita State University
(9873536)

8:00 a.m.

Saturday May 3, 2003, 8:00 a.m.10:50 a.m.
Special Session on Commutative Algebra, I
Room 429, Thornton Hall
Organizers:
Raymond C. Heitmann, University of Texas at Austin heitmann@math.utexas.edu
Irena Swanson, New Mexico State University iswanson@nmsu.edu

8:00 a.m.
Annihilators of local cohomology in characteristic zero.
Paul C. Roberts*, University of Utah
(98713108) 
8:30 a.m.
Characterization of Completions of Excellent Domains of Characteristic Zero.
S. Loepp*, Williams College
(9871338) 
9:00 a.m.
The plus closure of an ideal under degree three extensions.
Leslie Hayes*, Saint Joseph's University
(98713181) 
9:30 a.m.
Associated primes of local cohomology modules and Frobenius powers of ideals.
Anurag K Singh*, Georgia Institute of Technology
Irena Swanson, New Mexico State University
(98713111) 
10:00 a.m.
An inquality involving colengths of tight closure of parameter ideals.
Catalin Ciuperca*, University of California, Riverside
Florian Enescu, University of Utah
(98713131) 
10:30 a.m.
Splitting in modulefinite extension rings and the vanishing conjecture for maps of Tor.
Nandini Ranganathan*, Reed College
(98713202)

8:00 a.m.

Saturday May 3, 2003, 8:00 a.m.10:40 a.m.
Special Session on GromovWitten Theory of Spin Curves and Orbifolds, I
Room 335, Thornton Hall
Organizers:
Tyler Jarvis, Brigham Young University jarvis@math.byu.edu
Takashi Kimura, Boston University kimura@math.bu.edu
Arkady Vaintrob, University of Oregon vaintrob@darkwing.uoregon.edu

8:00 a.m.
Gerbe and twisted orbifold quantum cohomology.
Yongbin Ruan*, Wisconsin/HKUST
(98753104) 
9:00 a.m.
Inertia Orbifolds, Configuration Spaces and the Ghost Loop Space.
Ernesto Lupercio*, University of Wisconsin
Bernardo Uribe, Max Planck Institute
(98755171) 
9:30 a.m.
Gerbes over orbifolds and their TQFTs.
Bernardo Uribe*, Max Planck Institut fuer Mathematik
(9875561) 
10:00 a.m.
From moduli space of curves to GromovWitten invariants.
Xiaobo Liu*, University of Notre Dame
(9875378)

8:00 a.m.

Saturday May 3, 2003, 8:30 a.m.10:40 a.m.
Special Session on QSeries and Partitions, I
Room 210, Thornton Hall
Organizers:
Neville Robbins, San Francisco State University robbins@math.sfsu.edu

8:30 a.m.
Divisibility properties of pregular partition functions.
David K Penniston*, Furman University
(98711152) 
9:00 a.m.
Gordon's Theorem For Overpartitions.
Jeremy Lovejoy*, CNRS, Universite Bordeaux I, and University of Wisconsin
(9871185) 
9:30 a.m.
Arithmetic properties of the partition function.
Matthew G. Boylan*, University of Illinois at UrbanaChampaign
(9871182) 
10:00 a.m.
Congruence properties of the partition function $p(n)$.
Ken Ono*, University of Wisconsin
Jan Bruinier, University of Cologne
(9871152)

8:30 a.m.

Saturday May 3, 2003, 8:30 a.m.10:50 a.m.
Special Session on Combinatorial Commutative Algebra and Algebraic Geometry, I
Room 432, Thornton Hall
Organizers:
Serkan Hosten, San Francisco State University serkan@math.sfsu.edu
Ezra Miller, Mathematical Sciences Research Institute emiller@msri.org

8:30 a.m.
Ideals with a power equal to a power of the maximal ideal.
David Eisenbud*, MSRI / UC Berkeley
Craig Huneke, U of Kansas
Bernd Ulrich, Purdue U
(9871377) 
9:00 a.m.
Minimal Primes of Adjacent Minor Ideals.
Serkan Hosten, San Francisco State University
Seth Sullivant*, University of California, Berkeley
(98705135) 
9:30 a.m.
Complexity in Commutative Algebra.
Amelia Taylor*, Rutgers University
Dave Bayer, Barnard College
Wolmer Vasconcelos, Rutgers University
(98713143) 
10:00 a.m.
Beyond TutteGrothendieck: A new recursion for matroids and shifted complexes.
Art Duval*, University of Texas at El Paso
(98705125) 
10:30 a.m.
Lexicographic Shifting.
Rekha R Thomas*, University of Washington
E Babson, University of Washington
I Novik, University of Washington
(98713147)

8:30 a.m.

Saturday May 3, 2003, 8:30 a.m.10:50 a.m.
Special Session on Beyond Classical Boundaries of Computability, I
Room 329, Thornton Hall
Organizers:
Mark Burgin, University of California Los Angeles mburgin@math.ucla.edu
Peter Wegner, Brown University pw@cs.brown.edu

8:30 a.m.
Supertask computation with infinite time Turing machines.
Joel David Hamkins*, Georgia State University
(9870309) 
9:00 a.m.
Computation in Pitowsky and MalamentHogarth Spacetimes.
Oron Shagrir*, The Hebrew University of Jerusalem
(9876820) 
9:30 a.m.
Quantum Mechanical Principles and Computation.
Tien D Kieu*, Swinburne University of Technology
(9878110) 
10:00 a.m.
Hypercomputation by Definition.
Benjamin Wells*, University of San Francisco
(9870314) 
10:30 a.m.
Determinacy, Arithmetical quasiinductive definitions, and Infinite Time Turing Machine Computations.
Philip David Welch*, University of Bristol
(98703141)

8:30 a.m.

Saturday May 3, 2003, 9:00 a.m.10:50 a.m.
Special Session on The History of Nineteenth and Twentieth Century Mathematics, I
Room 425, Thornton Hall
Organizers:
Shawnee McMurran, California State University, San Bernardino mcmurran@math.csusb.edu
James A. Tattersall, Providence College tat@providence.edu

9:00 a.m.
The evolutionary origins of mathematics ability.
Keith J Devlin*, Stanford University
(98701186) 
9:30 a.m.
Ruth Moufang and the foundations of geometry.
John Colin Stillwell*, University of San Francisco
(9870128) 
10:00 a.m.
The Angle of Parallelism in the Development of Linear Elasticity.
John Sarli*, CSU San Bernardino
(9875135) 
10:30 a.m.
The ErdosSzekeres Theorem.
Ronald Graham*, UCSD
(9870559)

9:00 a.m.

Saturday May 3, 2003, 9:00 a.m.10:45 a.m.
Special Session on Topological Quantum Computation, I
Room 428, Thornton Hall
Organizers:
Alexei Kitaev, California Institute of Technology kitaev@cs.caltech.edu
Samuel J. Lomonaco, University of Maryland, Baltimore County lomonaco@umbc.edu

9:00 a.m.
Nonabelian phases in electronic and bosonic Hubbard models.
Michael Freedman*, Microsoft Research
(98781203) 
10:00 a.m.
A subexponential time algorithm for the dihedral hidden subgroup problem.
Greg Kuperberg*, UC Davis
(98768130)

9:00 a.m.

Saturday May 3, 2003, 9:00 a.m.10:50 a.m.
Special Session on Qualitative Properties and Applications of Functional Equations, I
Room 326, Thornton Hall
Organizers:
Theodore A. Burton, Southern Illinois University at Carbondale taburton@olypen.com

9:00 a.m.
Multiple Solutions for Impulsive Functional Differential Equations.
Mouffak Benchohra, Universite de Sidi Bel Abbes
Johnny Henderson*, Baylor University
Sotiris K. Ntouyas, University of Ioannina
A. Ouahabi, Universite de Sidi Bel Abbes
(9873417) 
9:30 a.m.
Massera's Theorem for Almost Periodic Solutions and Almost Automorphic Solutions of Functional Differential Equations.
Satoru Murakami*, Department of Applied Mathematics/ Okayama University of Science
(9873453) 
10:00 a.m.
Instability for Dynamical Systems with Applications to Functional Differential Equations and Difference Equations.
John R. Haddock*, University of Memphis
(98734124) 
10:30 a.m.
Periodic Solutions of Evolution Equations.
James H Liu*, James Madison University
(9873422)

9:00 a.m.

Saturday May 3, 2003, 9:30 a.m.10:50 a.m.
Special Session on Geometry and Arithmetic over Finite Fields, I
Room 409, Thornton Hall
Organizers:
Bjorn Poonen, University of California Berkeley poonen@math.berkeley.edu
Joe P. Buhler, Reed College jpb@reed.edu

9:30 a.m.
On Effective Hilbert Irreducibility Theorems.
Shuhong Gao*, Clemson University
(9871167) 
10:30 a.m.
Counting symmetric, diagonalizable matricies of small size over finite fields.
Christopher L Phan*, Lewis & Clark College
Harvey J Schmidt, Lewis & Clark College
(9871521)

9:30 a.m.

Saturday May 3, 2003, 9:30 a.m.10:50 a.m.
Special Presentation: Part I
TA development using case studies: A workshop for faculty.
Room 434, Thornton Hall
Organizers:
Diane Herrmann, University of Chicago 
Saturday May 3, 2003, 11:00 a.m.11:50 a.m.
Invited Address
Higher spin curves and GromovWitten theory.
Room 201, Science Building
Arkady Vaintrob*, University of Oregon
(98714170) 
Saturday May 3, 2003, 2:00 p.m.2:50 p.m.
Invited Address
Topological quantum computation and quantum media.
Room 201, Science Building
Alexei Kitaev*, Caltech
(98781177) 
Saturday May 3, 2003, 3:00 p.m.4:20 p.m.
Special Session on The History of Nineteenth and Twentieth Century Mathematics, II
Room 425, Thornton Hall
Organizers:
Shawnee McMurran, California State University, San Bernardino mcmurran@math.csusb.edu
James A. Tattersall, Providence College tat@providence.edu

3:00 p.m.
Riemann's Explicit Formula.
Jeffrey Stopple*, UC Santa Barbara
(9871142) 
3:30 p.m.
Moments of the Riemann zeta function: from Ingham, Hardy and Littlewood to today.
Jennifer E Beineke*, Western New England College
(98701146) 
4:00 p.m.
Mathematical Questions and Their Solutions from The Educational Times.
James J Tattersall*, Providence College
Shawnee L McMurran, California State University San Bernardino
(9870165)

3:00 p.m.

Saturday May 3, 2003, 3:00 p.m.5:20 p.m.
Special Session on QSeries and Partitions, II
Room 210, Thornton Hall
Organizers:
Neville Robbins, San Francisco State University robbins@math.sfsu.edu

3:00 p.m.
A new formula for 9 squares.
Stephen C Milne*, The Ohio State University
(9871196) 
3:30 p.m.
GollnitzGordon partitions with weights and parity conditions.
Krishnaswami Alladi*, University of Florida
Alexander Berkovich, University of Florida
(9871156) 
4:00 p.m.
Statistics on Schr\"oder paths and Symmetric Functions.
E. S. Egge, Gettysburg College
J. Haglund*, University of Pennsylvania
K. Killpatrick, Pepperdine University
D. Kremer, Gettysburg College
(9870574) 
4:30 p.m.
Identities for the total number of parts in all partitions of an integer.
Neville Robbins*, San Francisco State University
Arnold Knopfmacher, University of the Witwatersrand
(9871150) 
5:00 p.m.
A classical treatment of the divisibility properties of $p(n)$.
Dennis A Eichhorn*, University of Arizona
(98711136)

3:00 p.m.

Saturday May 3, 2003, 3:00 p.m.5:50 p.m.
Special Session on Combinatorial Commutative Algebra and Algebraic Geometry, II
Room 432, Thornton Hall
Organizers:
Serkan Hosten, San Francisco State University serkan@math.sfsu.edu
Ezra Miller, Mathematical Sciences Research Institute emiller@msri.org

3:00 p.m.
Smooth toric varieties and quadratic embeddings.
Joseph Gubeladze*, San Francisco State University and Georgian Academy of Sciences
Serkan Hosten, San Francisco State University
(98713117) 
3:30 p.m.
Delta Normal Configurations.
Edwin Michael O'Shea*, University of Washington
(98713195) 
4:00 p.m.
Combinatorial Structure of Injective Resolutions over Semigroup Rings.
David F Helm*, UC Berkeley
(98713165) 
4:30 p.m.
Multiplier ideals on toric varieties.
Howard M Thompson*, University of Michigan
(9871481) 
5:00 p.m.
The $K$theory of the flag variety and the FominKirillov quadratic algebra.
Cristian P. Lenart*, State University of New York at Albany
(98705172) 
5:30 p.m.
On a PieriChevalley type formula for $K(G/B)$.
Peter Littelmann*, Wuppertal/MSRI
(98714184)

3:00 p.m.

Saturday May 3, 2003, 3:00 p.m.5:45 p.m.
Special Session on Topological Quantum Computation, II
Room 428, Thornton Hall
Organizers:
Alexei Kitaev, California Institute of Technology kitaev@cs.caltech.edu
Samuel J. Lomonaco, University of Maryland, Baltimore County lomonaco@umbc.edu

3:00 p.m.
Quantum Entanglement and Topological Entanglement.
Louis H Kauffman*, University of Illinois at Chicago
Samuel J. Lomonaco, University of Maryland Baltimore County
(98781174) 
4:00 p.m.
Quantum computations using anyons from finite groups.
Carlos Mochon*, Caltech
(98768109) 
5:00 p.m.
Quantum Invariants of 3Manifolds and Quantum Computation.
Sergey Bravyi*, Institute for Quantum Information, Caltech
Alexei Kitaev, Institute for Quantum Information, Caltech
(98700167)

3:00 p.m.

Saturday May 3, 2003, 3:00 p.m.6:00 p.m.
Special Session on Beyond Classical Boundaries of Computability, II
Room 329, Thornton Hall
Organizers:
Mark Burgin, University of California Los Angeles mburgin@math.ucla.edu
Peter Wegner, Brown University pw@cs.brown.edu

3:00 p.m.
Turing's Life and Ideas.
Peter Wegner*, Brown University
(9876811) 
3:30 p.m.
SuperTuring Models of Computation.
Dina Goldin*, University of Connecticut
(9876812) 
4:00 p.m.
Natural Computation and NonTuring Models of Computation.
Bruce J. MacLennan*, Department of Computer Science, The University of Tennessee, Knoxville
(9876818) 
4:30 p.m.
New Kind of Computer Science.
Eugene Eberbach*, University of Massachusetts
(9876813) 
5:00 p.m.
Continuousspace model of computation.
Damien Woods*, National University of Ireland, Maynooth
Thomas J Naughton, National University of Ireland, Maynooth
J Paul Gibson, National University of Ireland, Maynooth
(9876830) 
5:30 p.m.
Round Table

3:00 p.m.

Saturday May 3, 2003, 3:00 p.m.5:50 p.m.
Special Session on Qualitative Properties and Applications of Functional Equations, II
Room 326, Thornton Hall
Organizers:
Theodore A. Burton, Southern Illinois University at Carbondale taburton@olypen.com

3:00 p.m.
Second Order Functional Equations of Neutral Type.
Constantin C. Corduneanu*, University of Texas,Arlington
(98734145) 
3:30 p.m.
Existence results for second order functional differential equations with causal operators.
Mehran Mahdavi*, Bowie State University
(98734116) 
4:00 p.m.
Generalized Quasilinearization Method Versus Newton's Method.
Aghalaya S Vatsala*, University of Louisiana at Lafayette
(9873469) 
4:30 p.m.
Recent Results Related to Blowup and Quenching Problems.
C M Kirk*, California Polytechnic State University; San Luis Obispo, CA
(98745134) 
5:00 p.m.
Inequalities and Stability of Solutions of a Linear Scalar Functional Differential Equation.
Tingxiu Wang*, Oakton Community College
(9873464) 
5:30 p.m.
Integrodifferential Equations and Equations of Viscoelasticity.
Min He*, Kent State University Trumbull Campus
(98735102)

3:00 p.m.

Saturday May 3, 2003, 3:00 p.m.5:40 p.m.
Special Session on Geometry and Arithmetic over Finite Fields, II
Room 409, Thornton Hall
Organizers:
Bjorn Poonen, University of California Berkeley poonen@math.berkeley.edu
Joe P. Buhler, Reed College jpb@reed.edu

3:00 p.m.
Tate duality and the discrete logarithm problem.
MingDeh Huang*, University of Southern California
(9871172) 
4:00 p.m.
On some subgroups of the multiplicative group of finite rings.
J Felipe Voloch*, University of Texas at Austin
(9871127) 
5:00 p.m.
Sharper ABCbased bounds for congruent polynomials.
Daniel J. Bernstein*, University of Illinois at Chicago
(9871233)

3:00 p.m.

Saturday May 3, 2003, 3:00 p.m.5:40 p.m.
Special Session on Efficient Arrangements of Convex Bodies, II
Room 211, Thornton Hall
Organizers:
Dan P. Ismailescu, Hofstra University ismailes@CIMS.nyu.edu
Wlodzimierz Kuperberg, Auburn University kuperwl@auburn.edu

3:00 p.m.
The symmetry of densest packings.
Charles Radin*, University of Texas at Austin
(9875239) 
4:00 p.m.
Regular Production Systems and Aperiodicity in the Hyperbolic Plane.
Chaim GoodmanStrauss*, Univ Arkansas
(9875240) 
4:30 p.m.
Infinite packings of hyperbolic space through ergodic theory.
Lewis P Bowen*, University of California, Davis
(9875273) 
5:00 p.m.
On the KneserPoulsen Conjecture in Euclidean and spherical spaces.
Robert Connelly*, Cornell University
Károly Bezdek, Eötvös University
(98752114)

3:00 p.m.

Saturday May 3, 2003, 3:00 p.m.5:50 p.m.
Special Session on Numerical Methods, Calculations and Simulations in Knot Theory and Its Applications, II
Room 327, Thornton Hall
Organizers:
Jorge Alberto Calvo, North Dakota State University jorge_calvo@ndsu.nodak.ed
Kenneth C. Millett, University of California Santa Barbara millett@math.ucsb.edu
Eric J. Rawdon, Duquesne University rawdon@mathcs.duq.edu

3:00 p.m.
Some conjectures on the enumeration of alternating links and tangles.
Paul G ZinnJustin*, LPTMS, Universite Parissud
(9870570) 
3:30 p.m.
The Yenergy of knots.
Jun O'Hara*, Tokyo Metropolitan University
(98753178) 
4:00 p.m.
Quadrisecants of 3superbridge knots.
Gyo Taek Jin*, Korea Advanced Institute of Science and Technology
Miyoung Lee, Korea Advanced Institute of Science and Technology
(98757175) 
4:30 p.m.
Ordered groups, topology and computation.
Dale Rolfsen*, University of British Columbia
(9870675) 
5:00 p.m.
Meridians of Hyperbolic Knots.
Colin C Adams*, Williams College
(98757138) 
5:30 p.m.
Flat Knotted Bands.
Louis H. Kauffman*, University of Illinois at Chicago
(9875779)

3:00 p.m.

Saturday May 3, 2003, 3:00 p.m.5:40 p.m.
Special Session on PDEs and Applications in Geometry, II
Room 325, Thornton Hall
Organizers:
Qi S. Zhang, University of California Riverside qizhang@math.ucr.edu

3:00 p.m.
Three dimensional geometry and the Einstein constraint equations.
Richard M Schoen*, Stanford University
(98753144) 
4:00 p.m.
Certain collapsing sequences of solutions to Ricci flow.
Bennett Chow*, UCSD
David Glickenstein, UCSD
Peng Lu, University of Oregon
(98753155) 
5:00 p.m.
SubRiemannian calculus on hypersurfaces in Carnot groups and geometric estimates of Ahlfors type.
Nicola Garofalo*, Purdue University
(98735196)

3:00 p.m.

Saturday May 3, 2003, 3:00 p.m.5:50 p.m.
Special Session on Commutative Algebra, II
Room 429, Thornton Hall
Organizers:
Raymond C. Heitmann, University of Texas at Austin heitmann@math.utexas.edu
Irena Swanson, New Mexico State University iswanson@nmsu.edu

3:00 p.m.
Multiplicities of graded sequences of ideals.
Mircea I Mustata*, Clay Mathematics Institute
(9871392) 
3:30 p.m.
Effective Uniform Artin Rees Theorems.
L Ein, UIC
R. Lazarsfeld, U Michigan, Ann Arbor
K E Smith*, U Michigan, Ann Arbor
D Varolin, U Illinois, Urbana
(9871490) 
4:00 p.m.
Multiplicity of the special fiber of blowups.
Claudia Polini*, University of Notre Dame
(98713153) 
4:30 p.m.
On a Certain Variety of DeterminantalLike Ideals.
Jennifer C. McLoudMann*, University of Texas at Tyler
(98713115) 
5:00 p.m.
Evolutions and monomial ideals.
Reinhold Huebl*, Universitaet Regensburg
(9871355) 
5:30 p.m.
Weak Subintegral Closure of Ideals: Local Characterization and Connections with Reductions.
Marie A Vitulli*, University of Oregon
Terence Gaffney, Northeastern University
(98713187)

3:00 p.m.

Saturday May 3, 2003, 3:00 p.m.5:50 p.m.
Special Session on GromovWitten Theory of Spin Curves and Orbifolds, II
Room 335, Thornton Hall
Organizers:
Tyler Jarvis, Brigham Young University jarvis@math.byu.edu
Takashi Kimura, Boston University kimura@math.bu.edu
Arkady Vaintrob, University of Oregon vaintrob@darkwing.uoregon.edu

3:00 p.m.
Orbifold GromovWitten theory.
Tom Graber*, UC Berkeley
(98714163) 
4:00 p.m.
The stringy Chow rings of $M_2$ and $\overline M_2$.
Dan Abramovich*, Boston University / Brown University
James Spencer, Boston University
(98714151) 
4:30 p.m.
The Global MackayRuan Correspondence via Motivic Integration.
Mainak Poddar*, Michigan State University
(98714189) 
5:00 p.m.
New cohomological field theories arising from quasihomogeneous polynomials.
Huijun Fan, MaxPlanck Institut fuer Math.
Tyler J Jarvis*, Brigham Young University
YongBin Ruan, Hong Kong University of Science and Technology
(98714160) 
5:30 p.m.
Pointed admissible Gcovers, equivariant topological field theories and analogies with the moduli space of higher spin curves.
Takashi Kimura*, Institute for Advanced Study
(98714192)

3:00 p.m.

Saturday May 3, 2003, 3:00 p.m.4:30 p.m.
Special Presentation: Part I
TA development using case studies: A workshop for faculty.
Room 434, Thornton Hall
Organizers:
Diane Herrmann, University of Chicago 
Saturday May 3, 2003, 3:15 p.m.5:55 p.m.
Session for Contributed Papers
Room 106, Business Building

3:15 p.m.
Multiplication of Hypernumbers and Extrafunctions.
Mark Burgin*, UCLA
(9874646) 
3:30 p.m.
Autonomous DNA Computing model for logial and arithmetic operations.
Ponnammal Natarajan*, Rajalakshmi Engineering College, Chennai(India)
Anbarasu Sivalingam, Anna University, Chennai (India)
(98768123) 
3:45 p.m.
Maximizing Confidence That a Vector Valued Diffusion Process Will Hit a Target.
Rod A Freed*, California State University
(98760137) 
4:30 p.m.
Exceptional surgery and boundary slopes.
Masaharu Ishikawa, Tokyo Metropolitan University
Thomas W Mattman*, Cal. State Univ., Chico
Koya Shimokawa, Saitama University
(9875791) 
4:45 p.m.
Intrinsically Linked Graphs and Kuratowski Minors.
Thomas R Fleming*, UC San Diego
(9875789) 
5:00 p.m.
Some applications of the FrobeniusPerron theorem to dynamical systems in geometry.
Jiu Ding*, University of Southern Mississippi
(9871597) 
5:15 p.m.
Best Possible Hadamard Inqualities for Midpoint estimates.
A. M. Fink*, Iowa state University
Zsolt Pales, University of Debrecen
(9872624) 
5:30 p.m.
Generalized Shifts On Cartesian Products Of Sequence Spaces lp.
Sundaresan Kondagunta*, Cleveland State University
(98746119)

3:15 p.m.
Sunday May 4, 2003

Sunday May 4, 2003, 8:00 a.m.12:00 p.m.
Meeting Registration
Main Lobby (3rd Floor), Thornton Hall 
Sunday May 4, 2003, 8:00 a.m.10:50 a.m.
Special Session on Beyond Classical Boundaries of Computability, III
Room 329, Thornton Hall
Organizers:
Mark Burgin, University of California Los Angeles mburgin@math.ucla.edu
Peter Wegner, Brown University pw@cs.brown.edu

8:00 a.m.
On the complexity of real recursive functions.
Manuel Lameiras Campagnolo*, Lisbon University of Technology
(9876808) 
8:30 a.m.
Descriptive complexity in classes of inductive Turing machines.
Mark Burgin*, UCLA
(9876806) 
9:00 a.m.
If Intelligence is Uncomputable, Then...
Peter Kugel*, Boston College
(9876816) 
9:30 a.m.
Learning in the limit and experience of generations.
Mark Burgin*, UCLA
Allen Klinger, UCLA
(9876831) 
10:00 a.m.
A formal model of fuzzy computations (preliminary report).
Jiri Wiedermann*, Institute of Computer Science, Academy of Sciences of the Czech Republic, Prague
(9876848) 
10:30 a.m.
On Asymptotic Decidability of Some Problems Related to Artificial Intelligence.
Marek A Suchenek*, California State University Dominguez Hills
(98703100)

8:00 a.m.

Sunday May 4, 2003, 8:00 a.m.10:50 a.m.
Special Session on Qualitative Properties and Applications of Functional Equations, III
Room 326, Thornton Hall
Organizers:
Theodore A. Burton, Southern Illinois University at Carbondale taburton@olypen.com

8:00 a.m.
Fixed Points and Controllability in Delay Systems.
Bo Zhang*, Fayetteville State University
(9873499) 
8:30 a.m.
Asymptotic behavior of solutions of functional differential equations by Schauder's theorem.
Theodore A. Burton, Northwest Research Institute
Tetsuo Furumochi*, Shimane University
(9873471) 
9:00 a.m.
Bifurcation of almost periodic solutions in difference equations.
Yoshihiro Hamaya*, Department of Information Science Okayama University of Science
(9873943) 
10:30 a.m.
Stability Properties of Nonlinear Volterra Integrodifferential Equations.
M N Islam*, University of Dayton
(9874557)

8:00 a.m.

Sunday May 4, 2003, 8:00 a.m.10:50 a.m.
Special Session on Efficient Arrangements of Convex Bodies, III
Room 211, Thornton Hall
Organizers:
Dan P. Ismailescu, Hofstra University ismailes@CIMS.nyu.edu
Wlodzimierz Kuperberg, Auburn University kuperwl@auburn.edu

8:00 a.m.
The KneserPoulsen conjecture for bounded hyperbolic convex polyhedra.
Karoly Bezdek*, Cornell University, Dept. of Math., Ithaca NY
(98752112) 
8:30 a.m.
The bottleneck conjecture.
Greg Kuperberg*, UC Davis
(98752129) 
9:30 a.m.
A Polytopal Generalization of Sperner's coloring Lemma.
Jesus A De Loera*, Univ. of California, Davis
Elisha Peterson, Univ. of Maryland
Francis E. Su, Harvey Mudd College
(9875237) 
10:00 a.m.
Upper bounds for generalized touching numbers of convex bodies.
Istvan Talata*, Eotvos University, Budapest
(98752158) 
10:30 a.m.
Sphere Packing in Hyperbolic Space.
Henry Cohn*, Microsoft Research
Thomas Hales, University of Pittsburgh
Jacob Lurie, MIT
Peter Sarnak, Princeton
(98752161)

8:00 a.m.

Sunday May 4, 2003, 8:00 a.m.10:50 a.m.
Special Session on Numerical Methods, Calculations and Simulations in Knot Theory and Its Applications, III
Room 327, Thornton Hall
Organizers:
Jorge Alberto Calvo, North Dakota State University jorge_calvo@ndsu.nodak.ed
Kenneth C. Millett, University of California Santa Barbara millett@math.ucsb.edu
Eric J. Rawdon, Duquesne University rawdon@mathcs.duq.edu

8:00 a.m.
On the ropelength of infinite families of knots.
Claus Ernst*, Western Kentucky University
Yuanan Diao, UNCC
(98757150) 
8:30 a.m.
The effects of a topoogical consrtaint and excluded volume on the gyration radius of a ring polymer.
Miyuki K Shimamura*, Tokyo, Japan
(98765133) 
9:00 a.m.
Topological States of Circular DNA Obtained in SiteSpecific Recombination.
Alexander V Vologodskii*, New York University
(98792139) 
9:30 a.m.
Sedimentation dynamics of rigid, knotted filaments.
Oscar Gonzalez*, University of Texas
(98776190) 
10:00 a.m.
Numerical simulation of gel electrophoresis of DNA knots.
Giovanni Dietler*, University of Lausanne
Paolo De Los Rios, University of Lausanne
Cedric Weber, University of Lausanne
Marc Fleurant, University of Lausanne
(98782148) 
10:30 a.m.
8bar Tangling Blues.
G R Buck*, St. Anselm College
(98782199)

8:00 a.m.

Sunday May 4, 2003, 8:00 a.m.10:40 a.m.
Special Session on PDEs and Applications in Geometry, III
Room 325, Thornton Hall
Organizers:
Qi S. Zhang, University of California Riverside qizhang@math.ucr.edu

8:00 a.m.
On conformally compact Einstein 4manifolds.
Alice Chang, Princeton University
Jie Qing*, UNiversity of California, Santa Cruz
Paul Yang, Princeton University
(98753169) 
9:00 a.m.
The Origins of Fractality in Nature and the Singularities of Solutions to PDEs: The Model of the Koch Snowflake Drum.
Michel L. Lapidus*, University of California, Riverside
(9873554) 
10:00 a.m.
The wave maps equation.
Daniel Tataru*, UC Berkeley
(98735164)

8:00 a.m.

Sunday May 4, 2003, 8:00 a.m.10:50 a.m.
Special Session on Commutative Algebra, III
Room 429, Thornton Hall
Organizers:
Raymond C. Heitmann, University of Texas at Austin heitmann@math.utexas.edu
Irena Swanson, New Mexico State University iswanson@nmsu.edu

8:00 a.m.
Local rings of bounded CohenMacaulay type.
Graham J Leuschke, University of Kansas and MSRI
Roger Wiegand*, University of Nebraska and MSRI
(9871394) 
8:30 a.m.
Vanishing of Ext and Tor over CohenMacaulay local rings.
Craig Huneke, University of Kansas
Liana M Sega*, Mathematical Sciences Research Institute
Adela N Vraciu, University of Kansas
(98713118) 
9:00 a.m.
On a conjecture of Auslander and Reiten.
Craig Huneke, University of Kansas
Graham J. Leuschke*, University of Kansas / MSRI
(98713166) 
9:30 a.m.
The degree of the Hilbert polynomial of certain Ext modules and its leading coefficient.
Emanoil Theodorescu*, University of Missouri, Columbia
(98713188) 
10:00 a.m.
Realizing cohomology over complete intersections.
L L Avramov, University of NebraskaLincoln/MSRI
D A Jorgensen*, University of Texas at Arlington/MSRI
(98713168) 
10:30 a.m.
Asymptotic invariants of homomorphisms with applications to the Frobenius endomorphism.
Luchezar L Avramov, University of Nebraska
Srikanth Iyengar, University of Missouri
Claudia Miller*, Syracuse University
(98713191)

8:00 a.m.

Sunday May 4, 2003, 8:00 a.m.10:50 a.m.
Special Session on GromovWitten Theory of Spin Curves and Orbifolds, III
Room 335, Thornton Hall
Organizers:
Tyler Jarvis, Brigham Young University jarvis@math.byu.edu
Takashi Kimura, Boston University kimura@math.bu.edu
Arkady Vaintrob, University of Oregon vaintrob@darkwing.uoregon.edu

8:00 a.m.
nKdV hierarchies and A_{n1}singularities.
Alexander B Givental*, UC Berkeley
(98714103) 
9:00 a.m.
Semisimple Frobenius manifolds and higher spin curves.
Y.P. Lee*, Univ. of Utah / Princeton U.
(98714149) 
10:00 a.m.
Some remarks on Witten's top Chern class.
Alexander Polishchuk*, Boston University
(98714113) 
10:30 a.m.
Witten's top Chern class in Ktheory.
Alessandro Chiodo*, Cambridge University, UK
(98714127)

8:00 a.m.

Sunday May 4, 2003, 8:00 a.m.12:00 p.m.
Exhibit and Book Sale
Room 331, Thornton Hall 
Sunday May 4, 2003, 8:30 a.m.10:50 a.m.
Special Session on Combinatorial Commutative Algebra and Algebraic Geometry, III
Room 432, Thornton Hall
Organizers:
Serkan Hosten, San Francisco State University serkan@math.sfsu.edu
Ezra Miller, Mathematical Sciences Research Institute emiller@msri.org

8:30 a.m.
Total positivity and canonical basis in cluster algebras of types $A_1^{(1)}$ and $A_2^{(2)}$.
Paul Sherman, Northeastern University
Andrei Zelevinsky*, Northeastern University
(9871384) 
9:00 a.m.
The most singular Schubert variety?
Alexander Woo*, UCBerkeley
(98714200) 
9:30 a.m.
CastelnuovoMumford regularity and line configurations in the projective plane.
Hal Schenck*, Texas A&M University
(98714180) 
10:00 a.m.
Resolutions and Multigraded Regularity.
Gregory G Smith*, Barnard College
Diane Maclagan, Stanford University
(98713121) 
10:30 a.m.
Stanley Filtrations and Regularity.
Diane Maclagan*, Stanford University
Gregory G Smith, Barnard College
(98713120)

8:30 a.m.

Sunday May 4, 2003, 9:00 a.m.10:40 a.m.
Special Session on QSeries and Partitions, III
Room 210, Thornton Hall
Organizers:
Neville Robbins, San Francisco State University robbins@math.sfsu.edu

9:00 a.m.
A reciprocity theorem for certain $q$series found in Ramanujan's lost notebook.
Bruce C. Berndt, University of Illinois
Song Heng Chan, University of Illinois
Boon Pin Yeap, University of Illinois
Ae Ja Yee*, University of Illinois
(98705128) 
9:30 a.m.
On the parity of partition functions.
Bruce C. Berndt*, University of Illinois at UrbanaChampaign
Ae Ja Yee, University of Illinois at UrbanaChampaign
Alexandru Zaharescu, University of Illinois at UrbanaChampaign
(9871141) 
10:00 a.m.
On a Partition Problem of Richard Stanley.
George E. Andrews*, The Pennsylvania State University
(9871183)

9:00 a.m.

Sunday May 4, 2003, 9:00 a.m.10:40 a.m.
Special Session on Geometry and Arithmetic over Finite Fields, III
Room 409, Thornton Hall
Organizers:
Bjorn Poonen, University of California Berkeley poonen@math.berkeley.edu
Joe P. Buhler, Reed College jpb@reed.edu

9:00 a.m.
Prime values of polynomials.
B. Conrad, Univ. of Michigan
K. Conrad*, UC San Diego
R. Gross, Boston College
(9871126) 
10:00 a.m.
Unramified covers of affine spaces.
Kiran S. Kedlaya*, University of California, Berkeley
(9871429)

9:00 a.m.

Sunday May 4, 2003, 11:00 a.m.11:50 a.m.
Invited Address
The Direct Summand Conjecture in dimension three.
Room 201, Science Building
Raymond C Heitmann*, University of Texas at Austin
(9871366) 
Sunday May 4, 2003, 2:00 p.m.2:50 p.m.
Invited Address
A problem in symmetric functions arising from phase determination in crystallography.
Room 201, Science Building
Joe P Buhler*, Reed College
(98712198) 
Sunday May 4, 2003, 3:00 p.m.6:00 p.m.
Special Session on Beyond Classical Boundaries of Computability, IV
Room 329, Thornton Hall
Organizers:
Mark Burgin, University of California Los Angeles mburgin@math.ucla.edu
Peter Wegner, Brown University pw@cs.brown.edu

3:00 p.m.
A Logical Approach to the Philosophy of Hypercomputation.
Selmer C Bringsjord*, Rensselaer Polytechnic Institute (RPI)
(9870315) 
3:30 p.m.
Turing's Thesis, Hume's Problem, and Ockham's Razor: Uncertainty, Simplicity, and Efficiency in Empirical and Formal Reasoning.
Kevin T. Kelly*, Carnegie Mellon University
(9870325) 
4:00 p.m.
The Concept of Computability.
Carol E. Cleland*, Philosophy Department, University of Colorado
(9870347) 
4:30 p.m.
Hypercomputation in the Real World.
B. Jack Copeland*, University of Canterbury, New Zealand
(98703126) 
5:00 p.m.
Attempts to Compute the Uncomputable.
Martin D Davis*, UC Berkeley
(9870393) 
5:30 p.m.
Round Table

3:00 p.m.

Sunday May 4, 2003, 3:00 p.m.4:20 p.m.
Special Session on Qualitative Properties and Applications of Functional Equations, IV
Room 326, Thornton Hall
Organizers:
Theodore A. Burton, Southern Illinois University at Carbondale taburton@olypen.com

3:00 p.m.
Extinction, Persistence, and Permanence in a LotkaVolterra Model.
Shair Ahmad*, University of Texas at San Antonio
(9873468) 
3:30 p.m.
Parametric resonance in a predatorprey model.
Alfonso C Casal, Universidad Politecnica de Madrid
Alfredo S Somolinos*, Mercy College. Dobbs Ferry, NY.
(9873463) 
4:00 p.m.
Fixed Points, Stability, and Three Averages.
Theodore A Burton*, Southern Illinois University
(9873451)

3:00 p.m.

Sunday May 4, 2003, 3:00 p.m.5:40 p.m.
Special Session on Geometry and Arithmetic over Finite Fields, IV
Room 409, Thornton Hall
Organizers:
Bjorn Poonen, University of California Berkeley poonen@math.berkeley.edu
Joe P. Buhler, Reed College jpb@reed.edu

3:00 p.m.
A heuristic explanation of the distribution of Frobenius eigenvalues for principallypolarized abelian varieties.
Everett W Howe*, Center for Communications Research, La Jolla
(9871158) 
4:00 p.m.
L functions of exponential sums over affinoids.
Hui June Zhu*, McMaster University
(9871460) 
5:00 p.m.
The Zeta function of Algebraic rcycles: Conjectures and Results.
C. Douglas Haessig*, UC Irvine
(98711101)

3:00 p.m.

Sunday May 4, 2003, 3:00 p.m.4:50 p.m.
Special Session on Efficient Arrangements of Convex Bodies, IV
Room 211, Thornton Hall
Organizers:
Dan P. Ismailescu, Hofstra University ismailes@CIMS.nyu.edu
Wlodzimierz Kuperberg, Auburn University kuperwl@auburn.edu

3:00 p.m.
Large transversals to families of unit disks.
T Bisztriczky, University of Calgary, Canada
F Fodor*, University of Szeged, Hungary
D OliverosBraniff, University of Calgary, Canada
(9875262) 
3:30 p.m.
Hyperbolic Regular Polygons with Notched Edges  A Classification of Tilers.
Casey Mann*, University of Texas at Tyler
(9875276) 
4:00 p.m.
On the Number of Cylinders Touching a Ball.
Dan P Ismailescu*, Hofstra University
(98752173) 
4:30 p.m.
Covering a Strip by Unit Circles.
G\'abor Fejes T\'oth*, Alfr\'ed R\'enyi Mathematical Institute
(98752157)

3:00 p.m.

Sunday May 4, 2003, 3:00 p.m.6:10 p.m.
Special Session on Numerical Methods, Calculations and Simulations in Knot Theory and Its Applications, IV
Room 327, Thornton Hall
Organizers:
Jorge Alberto Calvo, North Dakota State University jorge_calvo@ndsu.nodak.ed
Kenneth C. Millett, University of California Santa Barbara millett@math.ucsb.edu
Eric J. Rawdon, Duquesne University rawdon@mathcs.duq.edu

3:00 p.m.
Densely packed knots.
Rhonald Lua, University of Minnesota
Alexander Borovinskiy, UCSF
Alexander Grosberg*, University of Minnesota
(98760162) 
3:30 p.m.
Computation of ideal shapes using a discretization by Biarcs.
Jana Smutny*, Swiss Federal Institute of Technology
(9876580) 
4:00 p.m.
Tightening knots with {\em Ridgerunner}.
Jason H Cantarella*, University of Georgia
Eric Rawdon, Duquesne University
Michael Piatek, Duquesne University
(9875387) 
4:30 p.m.
Simulations of Tight Links.
John M Sullivan*, Univ. of Ilinois, Urbana
(9875132) 
5:00 p.m.
Power law for the ideal prime knots.
Piotr Pieranski*, Poznan University of Technology, Poznan, Poland
Sylwester Przybyl, Poznan University of Technology, Poznan, Poland
Justyna Marchwiak, Poznan University of Technology, Poznan, Poland
(98754154) 
5:30 p.m.
The Effect of Flexibility on Minimum Ropelength Conformations.
Gregory Buck, Saint Anselm College
Michael Piatek, Duquesne University
Eric Rawdon*, Duquesne University
(98757185)

3:00 p.m.

Sunday May 4, 2003, 3:00 p.m.5:40 p.m.
Special Session on PDEs and Applications in Geometry, IV
Room 325, Thornton Hall
Organizers:
Qi S. Zhang, University of California Riverside qizhang@math.ucr.edu

3:00 p.m.
Asymptotic behavior to Dissipative QuasiGeostrophic flows.
Maria E Schonbek*, University of California Santa Cruz
Tomas P Schonbek, Florida Atlantic University
(9873588) 
4:00 p.m.
On smoothly bounded domains covering compact quotients.
Bun Wong*, UC Riverside
WS Cheung, The Univeristy of Hong Kong
(98732197) 
5:00 p.m.
Control in the presence of a black box.
Maciej Zworski*, UC Berkeley
(98735156)

3:00 p.m.

Sunday May 4, 2003, 3:00 p.m.4:20 p.m.
Special Session on GromovWitten Theory of Spin Curves and Orbifolds, IV
Room 335, Thornton Hall
Organizers:
Tyler Jarvis, Brigham Young University jarvis@math.byu.edu
Takashi Kimura, Boston University kimura@math.bu.edu
Arkady Vaintrob, University of Oregon vaintrob@darkwing.uoregon.edu

3:00 p.m.
A homotopytheoretical Heisenberg group.
Jack Morava*, Johns Hopkins University
(98755183) 
3:30 p.m.
On GromovWitten theory for global quotients.
Ralph M Kaufmann*, Oklahoma State University and MaxPlanckInstitute for Mathematics
(98714176) 
4:00 p.m.
A Generalization of Spin Orbifold Quantum Cohomology Arising From QuasiHomogeneous Polynomials.
Huijun Fan*, MPI in Leipzig, Germany
Tyler Jarvis, Brigham Young university
Yongbin Ruan, Wisconsin univ.& Hongkong Univ. Sci.& Tech.
(98753122)

3:00 p.m.