AMS Sectional Meeting Full Program

Current as of Tuesday, April 12, 2005 15:10:00

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Program  |  Deadlines  |  Registration/Housing/Etc.  |  Inquiries:  meet@ams.org

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1999 Fall Eastern Sectional Meeting
Providence, RI, October 2-3, 1999
Meeting #947

Associate secretaries:
Lesley M Sibner, AMS lsibner@duke.poly.edu

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Saturday October 2, 1999

• Saturday October 2, 1999, 7:30 a.m.-4:00 p.m.
  Meetings Registration
  Lounge, Slavin Center
• Saturday October 2, 1999, 7:30 a.m.-4:00 p.m.
  Exhibit and Book Sale
  Lounge, Slavin Center
• Saturday October 2, 1999, 8:00 a.m.-10:55 a.m.
  Special Session on Operator K-Theory and its Applications to Geometry and Topology
  Room 301, Harkins Hall
  Organizers:
  Guoliang Yu, University of Colorado, Boulder gyu@euclid.Colorado.EDU
  Carla E. Farsi, University of Colorado, Boulder farsi@euclid.colorado.edu
  Jeffrey S. Fox, University of Colorado, Boulder jfox@euclid.colorado.edu
  

  • 8:00 a.m.
    Completely Bounded Growth and Exactness of Discrete Groups.
    Erik Guentner*, IUPUI
    Jerome Kaminker, IUPUI
    (947-46-147)
  • 8:45 a.m.
    On invariants of Hirzebruch, Atiyah-Patodi-Singer, and Cheeger-Gromov.
    Stanley S Chang*, Rice University
    Shmuel A Weinberger, University of Chicago
    (947-19-127)
  • 9:30 a.m.
    Cyclic cohomology of Hopf algebras and secondary characteristic classes.
    Alexander Gorokhovsky*, Ohio State University
    (947-58-118)
  • 10:15 a.m.
    Self-adjoint perturbed Dirac operators.
    Jeffrey Fox, University of Colorado
    Peter Haskell*, Virginia Tech
    (947-58-101)
• Saturday October 2, 1999, 8:00 a.m.-10:50 a.m.
  Special Session on Difference Equations and Applications
  Room 108, Albertus Magnus Hall
  Organizers:
  Gerasimos Ladas, University of Rhode Island gladas@math.uri.edu
  Jeffrey T. Hoag, Providence College jhoag@providence.edu
  

  • 8:00 a.m.
    On the Global Behavior of Solutions of a Biological Model.
    E. A. Grove, University of Rhode Island
    G. Ladas, University of Rhode Island
    N. R. Prokup*, University of Rhode Island
    R. Levins, Harvard School of Public Health
    (947-39-40)
  • 8:30 a.m.
    The Pre-image Set and Transient Behavior of Delay Difference Equations, with Application to Ecology and Epidemiology .
    Richard Levins*, Harvard School of Public Health
    (947-39-38)
  • 9:00 a.m.
    Asymptotically Autonomous Difference Equations.
    Diana M Thomas*, New Jersey City Unversity
    (947-37-26)
  • 9:30 a.m.
    Applications of coupled logistic maps.
    Harold M Hastings*, Hofstra University
    Flavio H Fenton, Hofstra University
    Gregory C Levine, Hofstra University
    (947-37-24)
  • 10:00 a.m.
    On the Difference Equation x[n+1]=max{1/x[n], A[n]/x[n-1]} with a period 3 parameter.
    Edward A Grove, University of R.I.
    Candace M Kent, Virg. Common. Univ.
    Gerasimos Ladas, University of R.I.
    Michael A Radin*, University of R.I.
    (947-39-34)
  • 10:30 a.m.
    Existence and Global Behavior of a Rational System.
    Edward A Grove, University of Rhode Island
    Gerasimos Ladas, University of Rhode Island
    Lynn C McGrath, University of Rhode Island
    Christopher T Teixeira*, University of Rhode Island
    (947-39-33)
• Saturday October 2, 1999, 8:30 a.m.-10:50 a.m.
  Special Session on Algebraic and Geometric Combinatorics
  Room 317, Harkins Hall
  Organizers:
  Vesselin N. Gasharov, Cornell University vesko@math.cornell.edu
  Ira M. Gessel, Brandeis University gessel@math.brandeis.edu
  

  • 8:30 a.m.
    On the Varchenko bilinear form associated to a hyperplane arrangement.
    Benjamin S Joseph*, MIT
    (947-05-165)
  • 9:00 a.m.
    Kazhdan-Lusztig and $R$-polynomials, Young's lattice, and Catalan partitions.
    Francesco Brenti*, Universita' di Roma "Tor Vergata"
    (947-05-88)
  • 9:30 a.m.
    Compressed polytopes.
    Takayuki Hibi*, Osaka University
    (947-52-87)
  • 10:00 a.m.
    Generalized riffle shuffles and quasisymmetric functions.
    Richard P. Stanley*, M.I.T.
    (947-05-47)
  • 10:30 a.m.
    The coset poset and the probabilistic zeta function of a finite group.
    Kenneth S. Brown*, Cornell University
    (947-20-65)
• Saturday October 2, 1999, 8:30 a.m.-10:50 a.m.
  Special Session on Number Theory
  Room III, Moore Hall
  Organizers:
  Michael I. Rosen, Brown University mrosen@math.brown.edu
  Siman Wong, Brown University siman@math.brown.edu
  

  • 8:30 a.m.
    Galois pro-p groups unramified at p; explicit computations.
    Nigel Boston*, University of Illinois at Urbana-Champaign
    (947-11-71)
  • 9:00 a.m.
    Universal deformation rings and cyclic blocks.
    Ted C Chinburg*, Univ. of Pennyslvania
    Frauke M Bleher, Southern Illinois University
    (947-11-61)
  • 9:30 a.m.
    The number of rational points on genus 3 curves over finite fields.
    Kristin E Lauter*, Microsoft Research
    (947-11-95)
  • 10:00 a.m.
    How to align Brumer-Stark elements into a Hecke character (preliminary report).
    David R Hayes*, University of Massachusetts at Amherst
    (947-11-85)
  • 10:30 a.m.
    p-adic Gamma functions and pro-p Groups.
    Keith Conrad*, Ohio State University
    (947-11-125)
• Saturday October 2, 1999, 9:00 a.m.-10:50 a.m.
  Special Session on Representation Theory of Reductive Groups
  Room 327, Harkins Hall
  Organizers:
  Dan M. Barbasch, Cornell University barbasch@math.cornell.edu
  Birgit Speh, Cornell University speh@math.cornell.edu
  

  • 9:00 a.m.
    Functions on Nilpotent Orbit Covers.
    Eric N Sommers*, Harvard University
    (947-22-83)
  • 9:30 a.m.
    Invariant distributions supported by topologically nilpotent elements.
    Clifton Cunningham*, University of Massachusetts at Amherst
    (947-22-116)
  • 10:00 a.m.
    Star product quantization of nilpotent orbits.
    Ranee K Brylinski*, Penn State University
    (947-81-128)
  • 10:30 a.m.
    Component Groups of Centralizers of Nilpotents in Complex Symmetric Space.
    Donald R King*, Northeastern University
    Alfred G Noel, University of Massachusetts, Boston
    (947-20-109)
• Saturday October 2, 1999, 9:00 a.m.-10:50 a.m.
  Special Session on Geometry and Representation Theory of Algebraic Groups
  Room 328, Harkins Hall
  Organizers:
  James E. Humphreys, University of Massachusetts jeh@math.umass.edu
  Ivan Mirkovic, University of Massachusetts mirkovic@math.umass.edu
  

  • 9:00 a.m.
    Traces of intertwiners for quantum groups and difference equations.
    Pavel I Etingof*, MIT
    Alexander N Varchenko, UNC at Chapel Hill
    (947-17-100)
  • 9:30 a.m.
    Integral properties of the modular functor.
    Alexander Jr. Kirillov*, SUNY Stony Brook
    (947-14-153)
  • 10:00 a.m.
    Algebraic Construction of the Uhlenbeck Space.
    Vladimir Baranovsky*, University of Chicago
    (947-14-136)
  • 10:30 a.m.
    Verma modules for $\hat{gl_n}$ and Hall algebras.
    Alexander G Kuznetsov*, Independent Moscow University
    (947-22-151)
• Saturday October 2, 1999, 9:00 a.m.-10:50 a.m.
  Special Session on The History of Mathematics
  Room I, Moore Hall
  Organizers:
  Daniel Otero, Xavier University otero@xavier.xu.edu
  C. Edward Sandifer, Western Connecticut State University sandifer@wcsub.ctstateu.edu
  

  • 9:00 a.m.
    The Tenure of Charles Loewner at the University of Louisville: 1939-1944 .
    Richard M Davitt*, University of Louisville
    (947-98-30)
  • 9:40 a.m.
    The Indirect Influence of Andre Weil on Computational Electromagnetics.
    P Robert Kotiuga*, Boston University
    (947-78-142)
  • 10:20 a.m.
    Euler's "Example of the Use of Observation in Pure Mathematics".
    Edward Sandifer*, Western Connecticut State University
    (947-01-107)
• Saturday October 2, 1999, 9:00 a.m.-10:50 a.m.
  Special Session on Algebraic Dynamics
  Room 109, Albertus Magnus Hall
  Organizers:
  Jonathan Lubin, Brown University lubinj@math.brown.edu
  Joseph H. Silverman, Brown University jhs@abel.math.brown.edu
  

  • 9:00 a.m.
    Rapidity of approach to the identity of the $p$-power iterates of an automorphism of a field $k[[t]]$ of characteristic $p$.
    Jonathan Lubin*, Brown University
    (947-11-23)
  • 9:30 a.m.
    Fatou components in non-archimedean dynamics.
    Robert L Benedetto*, University of Rochester
    (947-37-51)
  • 10:00 a.m.
    Local and Global Polynomial Dynamics.
    Susan Goldstine*, McMaster University
    (947-11-68)
  • 10:30 a.m.
    On Preperiodic Points of Morphisms over Number Fields and Function Fields.
    Gregory S Call*, Amherst College
    (947-11-69)
• Saturday October 2, 1999, 9:00 a.m.-10:50 a.m.
  Special Session on Geometric Properties of Nonlinear Elliptic PDEs
  Room 135, Albertus Magnus Hall
  Organizers:
  Henri Berestycki, Universit\'e Pierre et Marie Curie (Paris VI)
  Yanyan Li, Rutgers University yyli@math.rutgers.edu
  

  • 9:00 a.m.
    Entire solutions of semilinear elliptic equations in $\mathbb{R}^3$ and a conjecture of De Giorgi.
    Luigi Ambrosio, Scuola Normale Superiore di Pisa
    Xavier Cabr\'e*, Universitat Politecnica de Catalunya
    (947-35-41)
  • 9:30 a.m.
    The Averaged Equation for a Dispersion Managed Optical Fiber and its Ground State.
    Christopher K Jones*, Brown University
    Vadim Zharnitsky, Brown University
    (947-35-161)
  • 10:00 a.m.
    Long-wave unstable thin film equations --- the linear and nonlinear stability of steady states .
    Richard S Laugesen, University of Illinois at Urbana-Champaign
    Mary C Pugh*, University of Pennsylvania
    (947-35-35)
  • 10:30 a.m.
    Inverse Boundary Value Problems for Quasilinear Elliptic Equations.
    Ziqi Sun*, Wichita State University
    (947-35-141)
• Saturday October 2, 1999, 9:15 a.m.-10:40 a.m.
  Session for Contributed Papers
  Room 305, Harkins Hall
  

  • 9:15 a.m.
    Differential Inequalities and Local Valency.
    Ram M Goel*, Punjabi University,Patiala(India
    (947-30-94)
  • 9:30 a.m.
    Continuation Method for $\alpha$-sublinear Mappings.
    Yong-Zhuo Chen*, University of Pittsburgh at Bradford
    (947-47-132)
  • 10:00 a.m.
    A closer look at the lower bound of the Van der Waerden numbers.
    Erin M Boyer*, Bard College
    Anitashree Balaji, Wellesley College
    Tze Yi Chan, Trinity College
    Tricia Frantti, Chassell High School
    Anant P Godbole, MIchigan Technological University
    (947-60-158)
  • 10:15 a.m.
    Treshold Functions for Random Sidon Sequences.
    Lukasz Fidkowski*, Harvard University
    Anant Godbole, Michigan Technological University
    Fumei Lam, Berkeley
    Donald Ying, Stanford
    (947-60-159)
  • 10:30 a.m.
    Shift Filters for Bayesian Categories and the Fulda /COMMON/ Gap.
    Barbara P. Landry*, University of Santa Cruz
    (947-60-11)
• Saturday October 2, 1999, 11:00 a.m.-11:50 a.m.
  Invited Address
  The maximum principle and qualitative properties of solutions to nonlinear partial differential equations.
  '64 Hall, Slavin Center
  Henri Berestycki*, Universit\'e Pierre et Marie Curie (Paris VI)
• Saturday October 2, 1999, 1:30 p.m.-2:20 p.m.
  Invited Address
  What is the right mathematical/statistical model for natural images?
  '64 Hall, Slavin Center
  David Mumford*, Brown University
• Saturday October 2, 1999, 2:30 p.m.-6:20 p.m.
  Special Session on Algebraic and Geometric Combinatorics
  Room 317, Harkins Hall
  Organizers:
  Vesselin N. Gasharov, Cornell University vesko@math.cornell.edu
  Ira M. Gessel, Brandeis University gessel@math.brandeis.edu
  

  • 2:30 p.m.
    Minuscule elements of Weyl groups.
    John R Stembridge*, University of Michigan
    (947-05-90)
  • 3:00 p.m.
    Dumont's statistic on words.
    Mark A. Skandera*, MIT
    (947-05-81)
  • 3:30 p.m.
    Spaces of trees.
    Louis J Billera, Cornell University
    Susan Holmes, Stanford University
    Karen Vogtmann*, Cornell University
    (947-05-98)
  • 4:00 p.m.
    Unimodality and Association Schemes.
    John S Caughman, IV, Michigan State University
    Bruce E Sagan*, Michigan State University
    (947-05-62)
  • 4:30 p.m.
    A new interpretation for the Tutte polynomial.
    Victor S. Reiner*, Univ. of Minnesota
    (947-05-06)
  • 5:00 p.m.
    A new combinatorial invariant for geometric lattices.
    H/'el\`ene Barcelo*, Arizona Sate University
    Reinhard Laubenbacher, New Mexico State University
    (947-05-84)
  • 5:30 p.m.
    Triangulations and Ehrhart Polynomials of Polytopes Associated with Root Systems.
    Wungkum Fong*, Massachusetts Institute of Technology
    (947-05-86)
  • 6:00 p.m.
    Iterated Homology and Decompositions of Simplicial Complexes.
    Art Duval*, University of Texas at El Paso
    Ping Zhang, Western Michigan University
    (947-05-129)
• Saturday October 2, 1999, 2:30 p.m.-5:20 p.m.
  Special Session on Representation Theory of Reductive Groups
  Room 327, Harkins Hall
  Organizers:
  Dan M. Barbasch, Cornell University barbasch@math.cornell.edu
  Birgit Speh, Cornell University speh@math.cornell.edu
  

  • 2:30 p.m.
    Germs of characters.
    Fiona Murnaghan*, University of Toronto
    (947-22-76)
  • 3:00 p.m.
    Hecke algebras and parabolic induction.
    Anne-Marie Aubert, Ecole Normale Superieure
    Philip K Kutzko, University of Iowa
    Lawrence E Morris*, Clark University
    (947-22-148)
  • 3:30 p.m.
    Rational Quadratic Divisors and Automorphic Forms.
    Jens P Funke*, Indiana University
    (947-11-56)
  • 4:00 p.m.
    Twisted Torsion on Compact Hyperbolic Spaces.
    Maria G Fung*, Cornell University
    (947-22-122)
  • 4:30 p.m.
    Cohomological meaning of $G/\Gamma$-multiplicities of certain unitary representations.
    Floyd L. Williams*, University of Massachusetts
    (947-22-99)
  • 5:00 p.m.
    Discussion.
• Saturday October 2, 1999, 2:30 p.m.-4:50 p.m.
  Special Session on Geometry and Representation Theory of Algebraic Groups
  Room 328, Harkins Hall
  Organizers:
  James E. Humphreys, University of Massachusetts jeh@math.umass.edu
  Ivan Mirkovic, University of Massachusetts mirkovic@math.umass.edu
  

  • 2:30 p.m.
    Geometry and unrestricted representations.
    Dmitriy Rumynin*, University of Warwick
    (947-17-46)
  • 3:00 p.m.
    Structure of some Springer fibers of $\mathfrak{gl}_n(\mathbb{C})$ and relations to Kazhdan-Lusztig theory.
    Francis Y. Fung*, Odyssey Research Associates
    (947-14-121)
  • 3:30 p.m.
    Cohomology of tilting modules and equivariant K-theory of the nilpotent cone.
    Viktor Ostrik*, Independent Moscow University
    (947-17-54)
  • 4:00 p.m.
    Affine Springer Fibers and Cartans of Loop Groups.
    David D Ben-Zvi*, University of Chicago
    (947-14-113)
  • 4:30 p.m.
    Character sheaves on Drinfeld's spaces.
    Dennis Gaitsgory*, Harvard University
    (947-14-133)
• Saturday October 2, 1999, 2:30 p.m.-5:20 p.m.
  Special Session on Difference Equations and Applications
  Room 108, Albertus Magnus Hall
  Organizers:
  Gerasimos Ladas, University of Rhode Island gladas@math.uri.edu
  Jeffrey T. Hoag, Providence College jhoag@providence.edu
  

  • 2:30 p.m.
    Multiple Solutions for $2m$th Order Sturm-Liouville Boundary Value Problems on a Measure Chain.
    Johnny Henderson*, Auburn University
    (947-39-18)
  • 3:00 p.m.
    On The Difference Equation $x(n+1)=(max{x(n),A{n}})/x(n)^2x(n-1)$.
    Soudabeh Valicenti*, University of Rhode Island
    Gerry Ladas, University of Rhode Island
    Kim Cunningham, University of Rhode Island
    Jeffery Feuer, Merrimack College
    (947-39-25)
  • 3:30 p.m.
    Eventually periodic solutions of x[n+1]=max{A[n]/x[n],1/x[n-1]}.
    William J. Briden, Univ. of R. I.
    Edward A. Grove, Univ. of R. I.
    Gerry Ladas, Univ. of R. I.
    Candace M. Kent*, Virginia Commonwealth Univ.
    (947-99-31)
  • 4:00 p.m.
    Discussion.
  • 4:30 p.m.
    Applications concerning a Riccati equation for a differential equation on a measure chain.
    Allan C. Peterson*, University of Nebraska-Lincoln
    Lynn H. Erbe, University of Nebraska-Lincoln
    (947-39-20)
  • 5:00 p.m.
    On the discretization of a delay differential equation.
    Kenneth L Cooke, Pomona College
    Anatoli F Ivanov*, Pennsylvania State University
    (947-39-16)
• Saturday October 2, 1999, 2:30 p.m.-5:45 p.m.
  Special Session on Mathematical and Statistical Aspects of Vision
  '64 Hall, Slavin Center
  Organizers:
  David Mumford, Brown University david_mumford@brown.edu
  Donald E. McClure, Brown University dem@brownvm.brown.edu
  Stuart A. Geman, Brown University geman@brownvm.brown.edu
  

  • 2:30 p.m.
    How Does the Brain See?
    Stephen Grossberg*, Boston University
    (947-92-104)
  • 3:45 p.m.
    A Compositional Approach to Natural and Artificial Vision.
    Elie Bienenstock*, Brown University
    (947-92-168)
  • 5:00 p.m.
    Learning and Representations in Brains and Machines.
    Tomaso A Poggio*, M.I.T.
    (947-92-106)
• Saturday October 2, 1999, 2:30 p.m.-4:50 p.m.
  Special Session on Geometric Properties of Nonlinear Elliptic PDEs
  Room 135, Albertus Magnus Hall
  Organizers:
  Henri Berestycki, Universit\'e Pierre et Marie Curie (Paris VI)
  Yanyan Li, Rutgers University yyli@math.rutgers.edu
  

  • 2:30 p.m.
    Harnack estimates and symmetry for elliptic systems.
    Jerome B. Busca*, Universit\'e de Tours
    (947-35-78)
  • 3:00 p.m.
    Gradient estimates for laminar elliptic systems.
    YanYan Li*, Rutgers University
    Louis Nirenberg, Courant Institute
    (947-35-92)
  • 3:30 p.m.
    On the interaction of self-similar multi-branched vortex sheets of the 2-D Euler equations.
    Zheng-Chao Han*, Rutgers-New Brunswick
    (947-76-160)
  • 4:00 p.m.
    Traveling fronts and solutions global in time of a semi-linear parabolic equation.
    Francois Hamel*, University Paris VI
    (947-35-39)
  • 4:30 p.m.
    A nonlinear elliptic boundary value problem related to corrosion modeling.
    Michael S Vogelius*, Rutgers University, New Brunswick
    (947-35-169)
• Saturday October 2, 1999, 2:40 p.m.-5:00 p.m.
  Special Session on Operator K-Theory and its Applications to Geometry and Topology
  Room 301, Harkins Hall
  Organizers:
  Guoliang Yu, University of Colorado, Boulder gyu@euclid.Colorado.EDU
  Carla E. Farsi, University of Colorado, Boulder farsi@euclid.colorado.edu
  Jeffrey S. Fox, University of Colorado, Boulder jfox@euclid.colorado.edu
  

  • 2:40 p.m.
    Some remarks on the Baum-Connes conjecture.
    Gennadi Kasparov*, University of Marseille at Luminy
    (947-19-45)
  • 3:30 p.m.
    An index theorem for families of elliptic operators invariant with respect to a bundle of Lie groups.
    Victor Nistor*, Penn State
    (947-47-93)
  • 4:20 p.m.
    A Topological Index for Proper Actions.
    Jody Trout*, Dartmouth College
    (947-19-150)
• Saturday October 2, 1999, 2:40 p.m.-5:50 p.m.
  Special Session on The History of Mathematics
  Room I, Moore Hall
  Organizers:
  Daniel Otero, Xavier University otero@xavier.xu.edu
  C. Edward Sandifer, Western Connecticut State University sandifer@wcsub.ctstateu.edu
  

  • 2:40 p.m.
    Into the Woods - Norbert Wiener in Maine.
    Eisso J Atzema*, University of Maine
    (947-01-135)
  • 3:20 p.m.
    The Remarkable History of Logarithms.
    Robert G Stein*, California State U, San Bernardino
    (947-01-143)
  • 4:00 p.m.
    Digo Que el Numero Sea una Cosa--Seeking the Earliest Printed Math Books in the New World.
    Bruce S Burdick*, Roger Williams University
    (947-01-162)
  • 4:40 p.m.
    Early Textbooks at West Point.
    V. Frederick Rickey*, United States Military Academy
    (947-01-139)
  • 5:20 p.m.
    Henry Briggs' Arithmetica Logarithmica: the introduction of common logarithms.
    Daniel E Otero*, Xavier University
    (947-01-108)
• Saturday October 2, 1999, 2:40 p.m.-5:00 p.m.
  Special Session on Algebraic Dynamics
  Room 109, Albertus Magnus Hall
  Organizers:
  Jonathan Lubin, Brown University lubinj@math.brown.edu
  Joseph H. Silverman, Brown University jhs@abel.math.brown.edu
  

  • 2:40 p.m.
    Round-off errors and $p$-adic numbers.
    Franco Vivaldi*, Queen Mary and Wesfield College, University of London
    Diana Bosio, Queen Mary and Wesfield College, University of London
    (947-37-50)
  • 3:10 p.m.
    Discussion.
  • 3:40 p.m.
    Some Open Problems in the Algebraic Theory of Dynamical Systems.
    Patrick Morton*, Wellesley College
    (947-12-57)
  • 4:10 p.m.
    Fractals in Number Theory.
    Arthur Baragar*, UNLV
    (947-06-74)
  • 4:40 p.m.
    Polynomial Chains and Stable Power Series.
    Karl F Zimmermann*, Union College
    (947-12-59)
• Saturday October 2, 1999, 2:40 p.m.-6:30 p.m.
  Special Session on Number Theory
  Room III, Moore Hall
  Organizers:
  Michael I. Rosen, Brown University mrosen@math.brown.edu
  Siman Wong, Brown University siman@math.brown.edu
  

  • 2:40 p.m.
    Are maximal Stirling numbers unique?
    E. R. Canfield, University of Georgia
    Carl Pomerance*, Bell Labs
    (947-11-29)
  • 3:10 p.m.
    Sums of values of a rational function.
    Bjorn Poonen*, University of California, Berkeley
    (947-11-44)
  • 3:40 p.m.
    Diophantine approximation exponents in finite characteristic.
    Dinesh S Thakur*, University of Arizona
    (947-11-66)
  • 4:10 p.m.
    Rank of $E(K)$ for cyclic cubic extensions.
    Hershy H Kisilevsky*, Concordia University
    Masato Kuwata, University of Caen
    Jack Fearnley, Concordia University
    (947-11-80)
  • 4:40 p.m.
    Uniform Bounds for Integral Points on Elliptic Curves.
    Lisa A Fastenberg*, Yeshiva University
    (947-11-73)
  • 5:10 p.m.
    Geometry of Fermat adeles.
    Alexandru Buium*, University of New Mexico
    (947-11-17)
  • 5:40 p.m.
    Gamma Values and Linear Independence in Characteristic $p$.
    Dale Brownawell, The Pennsylvania State University
    Matthew A Papanikolas*, The Pennsylvania State University
    (947-11-72)

Sunday October 3, 1999

• Sunday October 3, 1999, 8:00 a.m.-12:00 p.m.
  Meeting Registration
  Lounge, Slavin Center
• Sunday October 3, 1999, 8:00 a.m.-10:55 a.m.
  Special Session on Operator K-Theory and its Applications to Geometry and Topology
  Room 301, Harkins Hall
  Organizers:
  Guoliang Yu, University of Colorado, Boulder gyu@euclid.Colorado.EDU
  Carla E. Farsi, University of Colorado, Boulder farsi@euclid.colorado.edu
  Jeffrey S. Fox, University of Colorado, Boulder jfox@euclid.colorado.edu
  

  • 8:00 a.m.
    Signatures and covering spaces.
    Wolfgang L\"uck, Univ M\'unster
    Thomas Schick*, Penn State University and Uni Münster
    (947-55-13)
  • 8:45 a.m.
    Volume Growth and Positive Scalar Curvature.
    Guihua Gong*, Univ. of Puerto Rico, Rio Piedras
    Guoliang Yu, Uinversity of Colorado, Boulder
    (947-19-63)
  • 9:30 a.m.
    Monicity of the Baum-Connes map.
    Gunnar Carlsson, Stanford university
    Erik K Pedersen*, Bingham University
    John Roe, Penn State
    (947-19-112)
  • 10:15 a.m.
    Connes' Index Theorem for Groupoids.
    Jerome Kaminker*, IUPUI, Indianapolis, IN
    (947-19-166)
• Sunday October 3, 1999, 8:00 a.m.-10:20 a.m.
  Special Session on Difference Equations and Applications
  Room 108, Albertus Magnus Hall
  Organizers:
  Gerasimos Ladas, University of Rhode Island gladas@math.uri.edu
  Jeffrey T. Hoag, Providence College jhoag@providence.edu
  

  • 8:00 a.m.
    On the Recursive Sequence x(n+1) = (a + b x(n-1))/(c + x(n)) .
    Carol H Gibbons*, University of Rhode Island
    M R Kulenovic, University of Rhode Island
    Gerry Ladas, University of Rhode Island
    (947-39-12)
  • 8:30 a.m.
    On the System of Difference Equations x(n+1)=x(n)/(a+y(n)), y(n+1)=y(n)/(b+x(n)).
    Dean Clark, University of Rhode Island
    M.R. S. Kulenovic*, University of Rhode Island
    (947-39-32)
  • 9:00 a.m.
    The Brjuno Brush.
    Eileen F Lee*, Trinity College
    (947-37-27)
  • 10:00 a.m.
    On a Rational Recursive Sequence with Even Delays.
    Hamdi El-Mitwalli*, University of Rhode Island
    Edward A Grove, University of Rhode Island
    Gerasimos Ladas, University of Rhode Island
    (947-39-52)
• Sunday October 3, 1999, 8:00 a.m.-12:00 p.m.
  Exhibit and Book Sale
  Lounge, Slavin Center
• Sunday October 3, 1999, 8:30 a.m.-10:50 a.m.
  Special Session on Algebraic and Geometric Combinatorics
  Room 317, Harkins Hall
  Organizers:
  Vesselin N. Gasharov, Cornell University vesko@math.cornell.edu
  Ira M. Gessel, Brandeis University gessel@math.brandeis.edu
  

  • 8:00 a.m.
    The Frobenius Coin Exchange Problem and rational polytopes.
    Matthias Beck, Temple University
    Ricardo Diaz, University of Northern Colorado
    Sinai Robins*, Temple University
    (947-05-163)
  • 8:30 a.m.
    Lexicographic Shellability for Balanced Boolean Cell Complexes.
    Patricia L Hersh*, University of Washington
    (947-05-91)
  • 9:00 a.m.
    Discrete Morse Complexes.
    Manoj Chari, Louisiana State University/TU-Berlin
    Michael Joswig, TU-Berlin
    Volkmar Welker*, Universitaet Marburg
    (947-05-120)
  • 9:30 a.m.
    Enumerative invariants of convex polytopes.
    Louis J Billera*, Cornell University
    Catherine Stenson, Cornell University
    (947-52-140)
  • 10:00 a.m.
    Sign-balanced posets and spin-balanced domino tableaux.
    Dennis E White*, University of Minnesota
    (947-05-75)
  • 10:30 a.m.
    Generalized Littlewood-Richardson coefficients, canonical bases and totally positive varieties.
    Arkady Berenstein, Cornell University
    Andrei Zelevinsky*, Northeastern University
    (947-14-97)
• Sunday October 3, 1999, 8:30 a.m.-10:50 a.m.
  Special Session on Representation Theory of Reductive Groups
  Room 327, Harkins Hall
  Organizers:
  Dan M. Barbasch, Cornell University barbasch@math.cornell.edu
  Birgit Speh, Cornell University speh@math.cornell.edu
  

  • 8:30 a.m.
    Cohomological induction and harmonic algebra.
    Gregg J. Zuckerman*, Yale University
    (947-17-134)
  • 9:00 a.m.
    Primitive ideals and the theta correspondence.
    Peter E Trapa*, Institute for Advanced Study
    (947-22-37)
  • 9:30 a.m.
    Orthogonality relations and invariant sesquilinear forms.
    Robert W Donley, Jr.*, Oklahoma State University, Stillwater
    (947-22-22)
  • 10:00 a.m.
    Discussion.
  • 10:30 a.m.
    Deformation quantization and invariant distributions.
    Martin Andler, Universite de Versailles a San-Quentin
    Alexander Dvorsky, Rutgers University
    Siddhartha Sahi*, Rutgers University
    (947-22-103)
• Sunday October 3, 1999, 9:00 a.m.-10:50 a.m.
  Special Session on Geometry and Representation Theory of Algebraic Groups
  Room 328, Harkins Hall
  Organizers:
  James E. Humphreys, University of Massachusetts jeh@math.umass.edu
  Ivan Mirkovic, University of Massachusetts mirkovic@math.umass.edu
  

  • 9:00 a.m.
    Conjugacy classes in parabolic subgroups of general linear groups.
    Scott H Murray*, University of Chicago
    (947-20-60)
  • 9:30 a.m.
    Certain "abstract" homomorphisms of Chevalley groups.
    Lucy Lifschitz*, University of Virginia
    Andrei S Rapinchuk, University of Virginia
    (947-20-115)
  • 10:00 a.m.
    A homological interpretation of Jantzen's sum formula.
    Upendra B Kulkarni*, University of Massachusetts, Amherst
    (947-20-145)
  • 10:30 a.m.
    Some new applications of endomorphism algebras to representation theory.
    Brian Parshall*, University of Virginia
    (947-20-149)
• Sunday October 3, 1999, 9:00 a.m.-10:50 a.m.
  Special Session on The History of Mathematics
  Room I, Moore Hall
  Organizers:
  Daniel Otero, Xavier University otero@xavier.xu.edu
  C. Edward Sandifer, Western Connecticut State University sandifer@wcsub.ctstateu.edu
  

  • 9:00 a.m.
    A Definition of the Natural Logarithm.
    Linda Marie Saliga*, The University of Akron
    (947-01-126)
  • 9:40 a.m.
    Elegant Fractions in Indian Astronomy.
    Kim Plofker*, Brown University
    (947-01-114)
  • 10:20 a.m.
    Nyctaginaceous Mathematics.
    James J Tattersall*, Providence College
    (947-01-130)
• Sunday October 3, 1999, 9:00 a.m.-10:50 a.m.
  Special Session on Algebraic Dynamics
  Room 109, Albertus Magnus Hall
  Organizers:
  Jonathan Lubin, Brown University lubinj@math.brown.edu
  Joseph H. Silverman, Brown University jhs@abel.math.brown.edu
  

  • 9:00 a.m.
    The Lap Counting Function and Zeta Function of the Tent Map.
    Leopold Flatto, Bell Laboratories
    Jeffrey C Lagarias*, AT&T Labs
    (947-58-55)
  • 9:30 a.m.
    Torsion of abelian varieties and the Morton-Silverman conjecture.
    Bjorn Poonen*, University of California, Berkeley
    (947-11-43)
  • 10:00 a.m.
    Dynamical Systems and Elliptic Curves.
    Graham R Everest*, University of East Anglia
    (947-11-21)
  • 10:30 a.m.
    A Bound for Torsion Points on Everywhere Good Reduction Elliptic Curves.
    Joseph H. Silverman*, Brown University
    Marc Hindry, Universit\'e Denis Diderot Paris 7
    (947-11-28)
• Sunday October 3, 1999, 9:30 a.m.-10:50 a.m.
  Special Session on Geometric Properties of Nonlinear Elliptic PDEs
  Room 135, Albertus Magnus Hall
  Organizers:
  Henri Berestycki, Universit\'e Pierre et Marie Curie (Paris VI)
  Yanyan Li, Rutgers University yyli@math.rutgers.edu
  

  • 9:30 a.m.
    Non-existence results for nonlinear equations in unbounded domains.
    Isabeau Birindelli*, Dipartimento di Matematica, Universita' di Roma "La Sapienza"
    (947-35-123)
  • 10:00 a.m.
    Some geometric problems related to PDE's.
    Pablo Padilla*, IIMAS, UNAM
    (947-35-144)
  • 10:30 a.m.
    Multi-peak solutions for a nonlinear Neumann problem.
    Changfeng Gui*, University of Connecticut and University of British Columbia
    (947-35-53)
• Sunday October 3, 1999, 11:00 a.m.-11:50 a.m.
  Invited Address
  Unipotent Representations and Unitarity.
  '64 Hall, Slavin Center
  Dan M Barbasch*, Cornell University
  (947-22-117)
• Sunday October 3, 1999, 1:30 p.m.-2:20 p.m.
  Invited Address
  The Novikov conjecture and geometry of groups.
  '64 Hall, Slavin Center
  Guoliang Yu*, University of Colorado, Boulder
  (947-19-64)
• Sunday October 3, 1999, 2:30 p.m.-3:50 p.m.
  Special Session on Representation Theory of Reductive Groups
  Room 327, Harkins Hall
  Organizers:
  Dan M. Barbasch, Cornell University barbasch@math.cornell.edu
  Birgit Speh, Cornell University speh@math.cornell.edu
  

  • 2:30 p.m.
    Representation theoretic structures encoded in the loop Grassmannian.
    Ivan Mirkovi\'c*, University of Massachusetts at Amherst
    (947-22-157)
  • 3:00 p.m.
    Intertwining operators and Weyl group representations.
    David A Vogan*, MIT
    (947-22-58)
  • 3:30 p.m.
    Nonvanishing Theorems for Theta Correspondence.
    Hongyu L He*, Georgia State Univ.
    (947-22-96)
• Sunday October 3, 1999, 2:30 p.m.-4:50 p.m.
  Special Session on Geometry and Representation Theory of Algebraic Groups
  Room 328, Harkins Hall
  Organizers:
  James E. Humphreys, University of Massachusetts jeh@math.umass.edu
  Ivan Mirkovic, University of Massachusetts mirkovic@math.umass.edu
  

  • 2:30 p.m.
    Polar varieties in classical Lie algebras.
    Mikhail Grinberg*, MIT
    (947-22-48)
  • 3:00 p.m.
    Principal nilpotent pairs in a semisimple Lie algebra.
    Victor Ginzburg*, University of Chicago
    (947-17-110)
  • 3:30 p.m.
    Generalized character sums associated to regular prehomogeneous vector spaces over finite fields.
    David Kazhdan, Harvard University
    Alexander Polishchuk*, Boston University
    (947-14-105)
  • 4:00 p.m.
    Normalized intertwining operators and crystals.
    Alexander Braverman*, Massachusetts Institute of Techonology
    (947-22-155)
  • 4:30 p.m.
    Discussion.
• Sunday October 3, 1999, 2:30 p.m.-4:20 p.m.
  Special Session on Geometric Properties of Nonlinear Elliptic PDEs
  Room 135, Albertus Magnus Hall
  Organizers:
  Henri Berestycki, Universit\'e Pierre et Marie Curie (Paris VI)
  Yanyan Li, Rutgers University yyli@math.rutgers.edu
  

  • 2:30 p.m.
    On a three dimensional singularly perturbed Neumann problem.
    Meijun Zhu*, The University of Oklahoma
    Nassif Ghoussoub, University of British Columbia
    Changfeng Gui, University of British Columbia
    (947-35-89)
  • 3:00 p.m.
    Symmetry For Exterior Elliptic Problems and Two Conjectures In Potential Theory.
    Boyan Sirakov*, Universit\'e Paris VI
    (947-35-77)
  • 3:30 p.m.
    Non-existence results for semilinear cooperative elliptic systems via moving spheres.
    Wolfgang Reichel, Universitat Basel, Switzerland
    Henghui Zou*, University of Alabama at Birmingham
    (947-35-42)
  • 4:00 p.m.
    Traveling two and three dimensional water waves.
    Walter Craig*, Brown University
    (947-35-170)
• Sunday October 3, 1999, 2:40 p.m.-5:00 p.m.
  Special Session on Operator K-Theory and its Applications to Geometry and Topology
  Room 301, Harkins Hall
  Organizers:
  Guoliang Yu, University of Colorado, Boulder gyu@euclid.Colorado.EDU
  Carla E. Farsi, University of Colorado, Boulder farsi@euclid.colorado.edu
  Jeffrey S. Fox, University of Colorado, Boulder jfox@euclid.colorado.edu
  

  • 2:40 p.m.
    Generalized amenability and embeddings into Hilbert space.
    Alexander N Dranishnikov*, Pennsylvania State University
    (947-20-79)
  • 3:30 p.m.
    Non-commutative geometry and the representation theory of p-adic groups.
    Paul Baum*, Penn State University
    (947-19-102)
  • 4:20 p.m.
    Proper Actions, Bivariant Chern Characters and the Index Theorem.
    Ronghui Ji*, IUPUI
    (947-58-167)
• Sunday October 3, 1999, 2:40 p.m.-4:30 p.m.
  Special Session on The History of Mathematics
  Room I, Moore Hall
  Organizers:
  Daniel Otero, Xavier University otero@xavier.xu.edu
  C. Edward Sandifer, Western Connecticut State University sandifer@wcsub.ctstateu.edu
  

  • 2:40 p.m.
    Hensel's $p$-adic numbers: early history.
    Fernando Q Gouvea*, Colby College
    (947-01-138)
  • 3:20 p.m.
    The Development of Whole Number Algorithms in the United States.
    Susan C Ross*, University of Southern Mississippi
    (947-01-146)
  • 4:00 p.m.
    How did the Pythagoreans Prove the Side of a Square is Incommensurable With Its Diagonal?
    Jeff A Suzuki*, Boston University, College of General Studies
    (947-01-119)
• Sunday October 3, 1999, 2:40 p.m.-5:00 p.m.
  Special Session on Number Theory
  Room III, Moore Hall
  Organizers:
  Michael I. Rosen, Brown University mrosen@math.brown.edu
  Siman Wong, Brown University siman@math.brown.edu
  

  • 2:40 p.m.
    Tamely Ramified Towers and Discriminant Bounds for Number Fields.
    Farshid Hajir*, UCLA & Cal State Univ. San Marcos
    Christian Maire, Universite de Bordeaux 1
    (947-11-70)
  • 3:10 p.m.
    p-adic Distributions and p-adic Representation Theory.
    Jeremy Teitelbaum*, University of Illinois at Chicago
    (947-11-67)
  • 3:40 p.m.
    Toric Varieties and Modular Forms.
    Lev A Borisov, Columbia University
    Paul E Gunnells*, Columbia University
    (947-11-131)
  • 4:10 p.m.
    Counting elliptic curves.
    Jeffrey D. Achter*, UMass Amherst
    Clifton Cunningham, UMass Amherst
    (947-11-82)
  • 4:40 p.m.
    On Greenberg's Conjecture.
    David C Marshall*, University of Arizona
    William G McCallum, University of Arizona
    (947-11-164)

Inquiries:  meet@ams.org

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