AMS Sectional Meeting Program by Day

Current as of Tuesday, April 12, 2005 15:10:32

2003 Spring Western Section Meeting
San Francisco, CA, May 3-4, 2003
Meeting #987

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
    (987-68-08)
  • 8:30 a.m.
    Descriptive complexity in classes of inductive Turing machines.
    Mark Burgin*, UCLA
    (987-68-06)
  • 9:00 a.m.
    If Intelligence is Uncomputable, Then...
    Peter Kugel*, Boston College
    (987-68-16)
  • 9:30 a.m.
    Learning in the limit and experience of generations.
    Mark Burgin*, UCLA
    Allen Klinger, UCLA
    (987-68-31)
  • 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
    (987-68-48)
  • 10:30 a.m.
    On Asymptotic Decidability of Some Problems Related to Artificial Intelligence.
    Marek A Suchenek*, California State University Dominguez Hills
    (987-03-100)
• 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
    (987-34-99)
  • 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
    (987-34-71)
  • 9:00 a.m.
    Bifurcation of almost periodic solutions in difference equations.
    Yoshihiro Hamaya*, Department of Information Science Okayama University of Science
    (987-39-43)
  • 10:30 a.m.
    Stability Properties of Nonlinear Volterra Integrodifferential Equations.
    M N Islam*, University of Dayton
    (987-45-57)
• 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 Kneser-Poulsen conjecture for bounded hyperbolic convex polyhedra.
    Karoly Bezdek*, Cornell University, Dept. of Math., Ithaca NY
    (987-52-112)
  • 8:30 a.m.
    The bottleneck conjecture.
    Greg Kuperberg*, UC Davis
    (987-52-129)
  • 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
    (987-52-37)
  • 10:00 a.m.
    Upper bounds for generalized touching numbers of convex bodies.
    Istvan Talata*, Eotvos University, Budapest
    (987-52-158)
  • 10:30 a.m.
    Sphere Packing in Hyperbolic Space.
    Henry Cohn*, Microsoft Research
    Thomas Hales, University of Pittsburgh
    Jacob Lurie, MIT
    Peter Sarnak, Princeton
    (987-52-161)
• 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
    (987-57-150)
  • 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
    (987-65-133)
  • 9:00 a.m.
    Topological States of Circular DNA Obtained in Site-Specific Recombination.
    Alexander V Vologodskii*, New York University
    (987-92-139)
  • 9:30 a.m.
    Sedimentation dynamics of rigid, knotted filaments.
    Oscar Gonzalez*, University of Texas
    (987-76-190)
  • 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
    (987-82-148)
  • 10:30 a.m.
    8-bar Tangling Blues.
    G R Buck*, St. Anselm College
    (987-82-199)
• 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 4-manifolds.
    Alice Chang, Princeton University
    Jie Qing*, UNiversity of California, Santa Cruz
    Paul Yang, Princeton University
    (987-53-169)
  • 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
    (987-35-54)
  • 10:00 a.m.
    The wave maps equation.
    Daniel Tataru*, UC Berkeley
    (987-35-164)
• 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 Cohen-Macaulay type.
    Graham J Leuschke, University of Kansas and MSRI
    Roger Wiegand*, University of Nebraska and MSRI
    (987-13-94)
  • 8:30 a.m.
    Vanishing of Ext and Tor over Cohen-Macaulay local rings.
    Craig Huneke, University of Kansas
    Liana M Sega*, Mathematical Sciences Research Institute
    Adela N Vraciu, University of Kansas
    (987-13-118)
  • 9:00 a.m.
    On a conjecture of Auslander and Reiten.
    Craig Huneke, University of Kansas
    Graham J. Leuschke*, University of Kansas / MSRI
    (987-13-166)
  • 9:30 a.m.
    The degree of the Hilbert polynomial of certain Ext modules and its leading coefficient.
    Emanoil Theodorescu*, University of Missouri, Columbia
    (987-13-188)
  • 10:00 a.m.
    Realizing cohomology over complete intersections.
    L L Avramov, University of Nebraska-Lincoln/MSRI
    D A Jorgensen*, University of Texas at Arlington/MSRI
    (987-13-168)
  • 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
    (987-13-191)
• Sunday May 4, 2003, 8:00 a.m.-10:50 a.m.
  Special Session on Gromov-Witten 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_{n-1}-singularities.
    Alexander B Givental*, UC Berkeley
    (987-14-103)
  • 9:00 a.m.
    Semisimple Frobenius manifolds and higher spin curves.
    Y.-P. Lee*, Univ. of Utah / Princeton U.
    (987-14-149)
  • 10:00 a.m.
    Some remarks on Witten's top Chern class.
    Alexander Polishchuk*, Boston University
    (987-14-113)
  • 10:30 a.m.
    Witten's top Chern class in K-theory.
    Alessandro Chiodo*, Cambridge University, UK
    (987-14-127)
• 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
    (987-13-84)
  • 9:00 a.m.
    The most singular Schubert variety?
    Alexander Woo*, UC-Berkeley
    (987-14-200)
  • 9:30 a.m.
    Castelnuovo-Mumford regularity and line configurations in the projective plane.
    Hal Schenck*, Texas A&M University
    (987-14-180)
  • 10:00 a.m.
    Resolutions and Multigraded Regularity.
    Gregory G Smith*, Barnard College
    Diane Maclagan, Stanford University
    (987-13-121)
  • 10:30 a.m.
    Stanley Filtrations and Regularity.
    Diane Maclagan*, Stanford University
    Gregory G Smith, Barnard College
    (987-13-120)
• Sunday May 4, 2003, 9:00 a.m.-10:40 a.m.
  Special Session on Q-Series 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
    (987-05-128)
  • 9:30 a.m.
    On the parity of partition functions.
    Bruce C. Berndt*, University of Illinois at Urbana-Champaign
    Ae Ja Yee, University of Illinois at Urbana-Champaign
    Alexandru Zaharescu, University of Illinois at Urbana-Champaign
    (987-11-41)
  • 10:00 a.m.
    On a Partition Problem of Richard Stanley.
    George E. Andrews*, The Pennsylvania State University
    (987-11-83)
• 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
    (987-11-26)
  • 10:00 a.m.
    Unramified covers of affine spaces.
    Kiran S. Kedlaya*, University of California, Berkeley
    (987-14-29)
• 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
  (987-13-66)
• 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
  (987-12-198)
• 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)
    (987-03-15)
  • 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
    (987-03-25)
  • 4:00 p.m.
    The Concept of Computability.
    Carol E. Cleland*, Philosophy Department, University of Colorado
    (987-03-47)
  • 4:30 p.m.
    Hypercomputation in the Real World.
    B. Jack Copeland*, University of Canterbury, New Zealand
    (987-03-126)
  • 5:00 p.m.
    Attempts to Compute the Uncomputable.
    Martin D Davis*, UC Berkeley
    (987-03-93)
  • 5:30 p.m.
    Round Table
• 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 Lotka-Volterra Model.
    Shair Ahmad*, University of Texas at San Antonio
    (987-34-68)
  • 3:30 p.m.
    Parametric resonance in a predator-prey model.
    Alfonso C Casal, Universidad Politecnica de Madrid
    Alfredo S Somolinos*, Mercy College. Dobbs Ferry, NY.
    (987-34-63)
  • 4:00 p.m.
    Fixed Points, Stability, and Three Averages.
    Theodore A Burton*, Southern Illinois University
    (987-34-51)
• 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 principally-polarized abelian varieties.
    Everett W Howe*, Center for Communications Research, La Jolla
    (987-11-58)
  • 4:00 p.m.
    L functions of exponential sums over affinoids.
    Hui June Zhu*, McMaster University
    (987-14-60)
  • 5:00 p.m.
    The Zeta function of Algebraic r-cycles: Conjectures and Results.
    C. Douglas Haessig*, UC Irvine
    (987-11-101)
• 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 Oliveros-Braniff, University of Calgary, Canada
    (987-52-62)
  • 3:30 p.m.
    Hyperbolic Regular Polygons with Notched Edges -- A Classification of Tilers.
    Casey Mann*, University of Texas at Tyler
    (987-52-76)
  • 4:00 p.m.
    On the Number of Cylinders Touching a Ball.
    Dan P Ismailescu*, Hofstra University
    (987-52-173)
  • 4:30 p.m.
    Covering a Strip by Unit Circles.
    G\'abor Fejes T\'oth*, Alfr\'ed R\'enyi Mathematical Institute
    (987-52-157)
• 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
    (987-60-162)
  • 3:30 p.m.
    Computation of ideal shapes using a discretization by Biarcs.
    Jana Smutny*, Swiss Federal Institute of Technology
    (987-65-80)
  • 4:00 p.m.
    Tightening knots with {\em Ridgerunner}.
    Jason H Cantarella*, University of Georgia
    Eric Rawdon, Duquesne University
    Michael Piatek, Duquesne University
    (987-53-87)
  • 4:30 p.m.
    Simulations of Tight Links.
    John M Sullivan*, Univ. of Ilinois, Urbana
    (987-51-32)
  • 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
    (987-54-154)
  • 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
    (987-57-185)
• 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 Quasi-Geostrophic flows.
    Maria E Schonbek*, University of California Santa Cruz
    Tomas P Schonbek, Florida Atlantic University
    (987-35-88)
  • 4:00 p.m.
    On smoothly bounded domains covering compact quotients.
    Bun Wong*, UC Riverside
    W-S Cheung, The Univeristy of Hong Kong
    (987-32-197)
  • 5:00 p.m.
    Control in the presence of a black box.
    Maciej Zworski*, UC Berkeley
    (987-35-156)
• Sunday May 4, 2003, 3:00 p.m.-4:20 p.m.
  Special Session on Gromov-Witten 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 homotopy-theoretical Heisenberg group.
    Jack Morava*, Johns Hopkins University
    (987-55-183)
  • 3:30 p.m.
    On Gromov-Witten theory for global quotients.
    Ralph M Kaufmann*, Oklahoma State University and Max-Planck-Institute for Mathematics
    (987-14-176)
  • 4:00 p.m.
    A Generalization of Spin Orbifold Quantum Cohomology Arising From Quasi-Homogeneous Polynomials.
    Huijun Fan*, MPI in Leipzig, Germany
    Tyler Jarvis, Brigham Young university
    Yongbin Ruan, Wisconsin univ.& Hongkong Univ. Sci.& Tech.
    (987-53-122)