AMS Sectional Meeting Program by Day

Current as of Tuesday, April 12, 2005 15:08:51

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Program  |  Deadlines  |  Inquiries:  meet@ams.org

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1991 Eastern Section Meeting
Philadelphia, PA, October 12-13, 1991
Meeting #868

Associate secretaries:
W Wistar Comfort, AMS wcomfort@wesleyan.edu

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Sunday October 13, 1991

• Sunday October 13, 1991, 7:30 a.m.-9:50 a.m.
  Special Session on Modular Forms, Arithmetic Algebraic Geometry, III
  

  • 7:30 a.m.
    Galois module structure of schemes and modular forms.
    Ted Chinburg*, University of Pennsylvania
    (868-11-95)
  • 8:00 a.m.
    Torsion points on some Jacobians of modular curves.
    Dino J. Lorenzini*, Duke University
    (868-11-93)
  • 8:30 a.m.
    p-Adic complex power and Bernstein-Sato polynominal.
    Xiao-Wei Zhu*, University of Oklahoma
    (868-11-166)
  • 9:00 a.m.
    Variation of the canonical height in algebraic families.
    Joseph Silverman*, Brown University
    (868-11-29)
  • 9:30 a.m.
    Informal Discussion
• Sunday October 13, 1991, 7:30 a.m.-9:50 a.m.
  Special Session on Surgery Theory and Singular Spaces, III
  

  • 7:30 a.m.
    Non-characteristic embeddings of Tori.
    David Miller*, Swarthmore College
    (868-57-61)
  • 8:00 a.m.
    Positive scalar curvature for closed manifolds with finite fundamental group.
    Jonathan Rosenberg*, University of Maryland, College Park
    (868-53-158)
  • 8:30 a.m.
    Characteristics class and singular spaces.
    Sylvain Cappell*, Courant Institute of Mathematical Sciences, New York University
    (868-57-176)
  • 9:00 a.m.
    Atiyah invariant of Kahler manifolds and Picard variety.
    A. Libgober*, University of Illinois, Chicago
    (868-57-126)
  • 9:30 a.m.
    Torsion and the K-theory of Von Neumann algebras.
    Mel Rothenberg*, University of Chicago
    (868-57-87)
• Sunday October 13, 1991, 7:30 a.m.-9:50 a.m.
  Special Session on Geometric Analysis, III
  

  • 7:30 a.m.
    The flat horocycle transform on a symmetric space.
    Sigurdur Helgason*, Massachusetts Institute of Technology
    (868-43-23)
  • 8:00 a.m.
    The infinitesimal rigidity of the complex quadric of dimension four.
    Hubert Goldschmidt*, Columbia University
    (868-53-24)
  • 8:30 a.m.
    Range characterizations of totally geodesic Radon transforms on compact symmetric spaces.
    Fulton Gonzalez*, Tufts University
    (868-44-86)
  • 9:00 a.m.
    Radon transforms and structure of compact symmetric spaces.
    Eric Grinberg*, Temple University, Philadelphia
    (868-44-149)
  • 9:30 a.m.
    Real analytic Radon transforms and Pompeiu problems.
    Eric Todd Quinto*, Tufts University
    (868-44-90)
• Sunday October 13, 1991, 7:30 a.m.-9:55 a.m.
  Special Session on Variational Problems in Low Dimensional Geometry, III
  

  • 7:30 a.m.
    Poincare's geodesics, soap bubbles, and constant-curvature curves.
    Frank Morgan*, Williams College
    (868-53-113)
  • 8:10 a.m.
    What is (weighted) mean curvature?
    Jean Taylor*, Rutgers University, New Brunswick
    (868-49-37)
  • 8:45 a.m.
    Computing optimal geometries.
    Fred Almgren*, Princeton University
    (868-49-31)
  • 9:25 a.m.
    Proving area-minimization by slicing.
    Gary R. Lawlor*, Brigham Young University
    (868-49-42)
• Sunday October 13, 1991, 7:30 a.m.-9:50 a.m.
  Special Session on Phase Transitions and/or Front Propagation, III
  

  • 7:30 a.m.
    Generalized mean curvature motion.
    L. C. Evans*, University of California, Berkeley
    J. Spruck, University of Massachusetts, Amherst
    (868-35-74)
  • 8:00 a.m.
    Front propogation for reaction diffusion equations.
    G. Barles*, University de Tours, France
    H. M. Soner, Carnegie Mellon University
    P. E. Souganidis, Brown University
    (868-35-33)
  • 8:30 a.m.
    Curvature-dependent front propagation with boundary conditions.
    Peter Sternberg*, Indiana University, Bloomington
    (868-35-73)
  • 9:00 a.m.
    Convergence of Allen-Cahn equation.
    H. Mete Soner*, Carnegie Mellon University
    (868-35-81)
  • 9:30 a.m.
    Models of flame propagation and crystal growth: A differential games approach.
    Pierpaolo Soravia*, Brown University
    (868-35-163)
• Sunday October 13, 1991, 7:30 a.m.-9:50 a.m.
  Special Session on Numerical Linear Algebra, III
  

  • 7:30 a.m.
    A direct method for solving unstructed sparse linear systems.
    Carl D. Meyer*, North Carolina State University
    (868-65-22)
  • 8:00 a.m.
    A new implementation of th GMRES method.
    Lothar Reichel*, University of Kentucky
    Z. Bai, University of Kentucky
    D. Hu, University of Kentucky
    (868-65-08)
  • 8:30 a.m.
    Asynchronous parallel iterations for solving nonlinear systems.
    L. Elsner, University of Bielefeld, Germany
    I. Koltracht, University of Connecticut, Storrs
    M. Neumann*, University of Connecticut, Storrs
    (868-65-35)
  • 9:00 a.m.
    SOR for Markov chain problems.
    William J. Stewart*, North Carolina State University
    (868-65-99)
  • 9:30 a.m.
    Convergent iterative methods to find stationary distributions of Markov processes.
    Ivo Marek*, University Karlovy, Czechoslovakia
    Daniel B. Szyld, Temple University, Philadelphia
    (868-65-26)
• Sunday October 13, 1991, 8:00 a.m.-9:50 a.m.
  Special Session on Recent Progress in Ricci Curvature and Related Topics,III
  

  • 8:00 a.m.
    Diffeomorphism finiteness for a certain class of Riemannian manifolds.
    Jeff Cheeger*, Courant Institute of Mathematical Sciences, New York University
    (868-53-72)
  • 8:40 a.m.
    Volume comparison under scaling invariant Ricci bound.
    Guojun G. Liao*, University of Texas, Arlington
    Jianzhong Su, University of Texas, Arlington
    (868-53-51)
  • 9:20 a.m.
    Bounds on the fundamental group of a manifold with almost nonnegative Ricci curvature.
    Steve Rosenberg, Boston University
    Deane Yang*, Polytechnic Institute of New York
    (868-53-103)
• Sunday October 13, 1991, 8:00 a.m.-9:50 a.m.
  Special Session on Extreme Value Theory, III
  

  • 8:00 a.m.
    Improved asymtotics for tail density estimation.
    James Pickands, III*, University of Pennsylvania
    (868-62-152)
  • 8:30 a.m.
    A flaw model with random intensity.
    Howard M. Taylor*, University of Delaware
    (868-60-118)
  • 9:00 a.m.
    Practical application of newer methods of tail estimation to wind engineering: A case study.
    James A. Lechner, National Institute of Standards and Technology, Maryland
    Stefan D. Leigh*, National Institute of Standards and Technology, Maryland
    Emil Simiu, National Institute of Standards and Technology, Maryland
    (868-62-112)
  • 9:30 a.m.
    Extreme values in stochastic epidemic processes.
    Grace L. Yang*, University of Maryland, College Park
    (868-60-130)
• Sunday October 13, 1991, 8:00 a.m.-9:40 a.m.
  Special Session on Applications of Microlocal Analysis to Partial Differential Equations, III
  

  • 8:00 a.m.
    Analytic hypoellipticity of the Kohn Laplacian plus a constant.
    Daryl Geller*, State University of New York, Stony Brook
    (868-35-84)
  • 8:35 a.m.
    Boundedness of the FBI transform on Sobolev spaces and propagation of singularities.
    S. Berhanu, Temple University, Philadelphia
    S. Chanillo*, Rutgers University, New Brunswick
    (868-35-117)
  • 9:10 a.m.
    Wedge extendability for hypoanalytic structures.
    Mark E. Marson*, Purdue University, West Lafayette
    (868-35-171)
• Sunday October 13, 1991, 8:00 a.m.-9:50 a.m.
  Special Session on Rings and Representations, III
  

  • 8:00 a.m.
    Quotients of crossed products of Hopf algebras.
    J. Bergen, DePaul University
    M. Susan Montgomery*, University of Southern California
    (868-16-154)
  • 8:30 a.m.
    Delta methods in enveloping rings. II.
    Jeffrey Bergen*, DePaul University
    D. S. Passman, University of Wisconsin, Madison
    (868-16-27)
  • 9:00 a.m.
    Cocommutative Hopf algebra actions and the Connes spectrum.
    James Osterburg, University of Cincinnati
    Declan Quinn*, Syracuse University
    (868-16-155)
  • 9:30 a.m.
    Artinian rings with linearly ordered two-sided ideals.
    Barbara L. Osofsky*, Rutgers University, New Brunswick
    Richard D. Resco, University of Oklahoma
    (868-16-94)
• Sunday October 13, 1991, 8:00 a.m.-9:50 a.m.
  Special Session on Tilings, III
  

  • 8:00 a.m.
    Penrose tilings, crystals and dynamical systems.
    Charles Radin*, University of Texas, Austin
    (868-47-39)
  • 8:30 a.m.
    Tilings, orbifolds, and symmetry.
    John H. Conway*, Princeton University
    (868-51-105)
  • 9:00 a.m.
    An elementary proof of two triangle-tiling theorems of Conway and Lagarias.
    Donald C. West*, State University of New York, College at Plattsburgh
    (868-05-60)
  • 9:30 a.m.
    Classification of self-dual tilings.
    Walter Stromquist*, Daniel H. Wagner Associates, Paoli, Pennsylvania
    (868-51-68)
• Sunday October 13, 1991, 8:30 a.m.-9:50 a.m.
  Special Session on Nonlinear Partial Differential Equations, I
  

  • 8:30 a.m.
    Solvability of a fourth order equation in conformal geometry.
    Sun-Yung Alice Chang*, University of California, Los Angeles
    Paul C. Yang, University of Southern California
    (868-53-12)
  • 9:00 a.m.
    On uniformly rotating stars.
    Yanyan Li*, Rutgers University, New Brunswick
    (868-35-16)
  • 9:30 a.m.
    Poincare-Bendixson theory for state dependent differential-delay equations.
    John Mallet-Paret, Brown University
    Roger D. Nussbaum*, Rutgers University, New Brunswick
    (868-35-18)
• Sunday October 13, 1991, 10:00 a.m.-11:00 a.m.
  Invited Address
  Tilings, quasicrystals, and Hilbert's 18th problem.
  ROOM 501, Temple University Center City, 1619 Walnut Street
  Marjorie Senechal*, Smith College
  (868-52-102)
• Sunday October 13, 1991, 12:30 p.m.-1:30 p.m.
  Invited Address
  Critical points at infinity in some variational problems.
  ROOM 501, Temple University Center City, 1619 Walnut Street
  Abbas Bahri*, Rutgers University, New Brunswick
  (868-35-21)
• Sunday October 13, 1991, 1:45 p.m.-2:55 p.m.
  Special Session on Recent Progress in Ricci Curvature and Related Topics,IV
  

  • 1:45 p.m.
    Manifolds of negatively pinched curvature.
    Rugang Ye*, University of California, Santa Barbara
    (868-53-186)
  • 2:25 p.m.
    Fredholm operators and Einstein metrics on conformally compact manifolds.
    John M. Lee*, University of Washington
    (868-53-164)
• Sunday October 13, 1991, 1:45 p.m.-4:05 p.m.
  Special Session on Modular Forms, Arithmetic Algebraic Geometry, IV
  

  • 1:45 p.m.
    Zeta functions of flag varieties and Einstein series for Gl_n.
    David J. Wright*, Oklahoma State University, Stillwater
    (868-11-169)
  • 2:15 p.m.
    Eisenstein series with explicit expansions.
    Paul Feit*, Hamden, Connecticut
    (868-11-48)
  • 2:45 p.m.
    Universal local zeta functions.
    Diane Meuser*, Boston University
    (868-11-64)
  • 3:15 p.m.
    Bernoulli congruences between periods of modular forms.
    G. S. Nelson*, Pennsylvania State University, Erie
    (868-11-28)
  • 3:45 p.m.
    Informal Discusison
• Sunday October 13, 1991, 1:45 p.m.-3:35 p.m.
  Special Session on Surgery Theory and Singular Spaces, IV
  

  • 1:45 p.m.
    Links and localised Blanchfield pairings.
    Kent Orr*, Indiana University, Bloomington
    (868-57-167)
  • 2:15 p.m.
    G-surgery up to topological simple homotopy.
    Mark Steinberger*, State University of New York, Albany
    Frank Connolly, University of Notre Dame
    (868-57-178)
  • 2:45 p.m.
    The equivariant Borel conjecture fails.
    Shmuel Weinberger*, University of Chicago
    (868-57-170)
  • 3:15 p.m.
    Periodicity in stable equivariant surgery.
    Min Yan*, University of Michigan, Ann Arbor
    (868-57-134)
• Sunday October 13, 1991, 1:45 p.m.-3:35 p.m.
  Special Session on Geometric Analysis, IV
  

  • 1:45 p.m.
    Asymptotic finite propagation speed for heat diffusion on certain Riemannian manifolds.
    Jean-Philippe Anker, Universite de Nancy I, France
    Alberto G. Setti*, Cornell University
    (868-58-41)
  • 2:15 p.m.
    Some direct and inverse problems arising in design of reflecting surfaces.
    Vladimir Oliker*, Emory University
    (868-53-40)
  • 2:45 p.m.
    Nonlinear Fourier analysis.
    Leon Ehrenpreis*, Temple University, Philadelphia
    (868-44-148)
  • 3:15 p.m.
    On stability estimates in the 'hole theorem'for the Radon transform.
    Peter Kuchment*, Wichita State University
    Ziqi Sun, Wichita State University
    (868-44-172)
• Sunday October 13, 1991, 1:45 p.m.-3:35 p.m.
  Special Session on Variational Problems in Low Dimensional Geometry, IV
  

  • 1:45 p.m.
    Projective minimal surfaces.
    Lucas Hsu*, Mathematical Sciences Research Institute, Berkeley
    (868-58-177)
  • 2:25 p.m.
    Variational properties of holomorphic Abelian differentials on Riemann surfaces.
    Lev Slutskin*, Yeshiva University
    (868-30-56)
  • 3:05 p.m.
    Isoperimetric regions in some product manifolds.
    Jesus Gonzalo*, Universidad Autonoma de Madrid, Spain
    (868-53-98)
• Sunday October 13, 1991, 1:45 p.m.-3:05 p.m.
  Special Session on Tilings, IV
  

  • 1:45 p.m.
    Some results on semiregular tessellations of the hyperbolic plane.
    Douglas J. Dunham*, University of Minnesota, Duluth
    (868-52-146)
  • 2:15 p.m.
    Balance of tilings in the hyperbolic plane.
    Judith Flagg Moran*, Trinity College
    (868-05-100)
  • 2:45 p.m.
    Cube tilings, graphs, and simulation.
    S\'andor Szab\'o*, University of the Pacific
    (868-51-120)
• Sunday October 13, 1991, 1:45 p.m.-3:05 a.m.
  Special Session on Phase Transitions and/or Front Propagation, IV
  

  • 1:45 p.m.
    Singular limits of phase field equations: Stefan-type models, and motion by mean curvature.
    G. Caginalp*, University of Pittsburgh
    (868-35-59)
  • 2:15 p.m.
    Generation and propagation of interfaces for reaction-diffusion equations and systems.
    Xinfu Chen*, University of Minnesota, Minneapolis
    (868-35-11)
  • 2:45 p.m.
    Delayed oscillation phenomena.
    Jianzhong Su*, University of Texas, Arlington
    (868-35-49)
• Sunday October 13, 1991, 1:45 p.m.-3:05 p.m.
  Special Session on Numerical Linear Algebra, IV
  

  • 1:45 p.m.
    Modifying the Shougen-Shuquin algorithm for the banded symmetric generalized matrix eigenvalue problem.
    Linda Kaufman*, AT&T Bell Laboratories, Murray Hill, New Jersey
    (868-65-13)
  • 2:15 p.m.
    Parallel solution of generalized band symmetric eigenvalue problems by sectioning.
    Ricardo D. Pantazis*, Duke University
    (868-65-111)
  • 2:45 p.m.
    Error analysis of update methods for the symmetric eigenvalue problem.
    Jesse L. Barlow*, Pennsylvania State University, University Park
    (868-65-02)
• Sunday October 13, 1991, 1:45 p.m.-3:05 p.m.
  Special Session on Nonlinear Partial Differential Equations, II
  

  • 1:45 p.m.
    Multivortices in the electroweak theory.
    Yisong Yang*, University of New Mexico
    (868-35-47)
  • 2:15 p.m.
    Positive solutions of semilinear elliptic equationcap delta u + hu_n-2/n+2 = 0.
    Tiancheng Ouyang*, University of Cincinnati
    (868-35-141)
  • 2:45 p.m.
    Generalized unique continuation theorems.
    Libin Mou*, University of Southern California
    (868-35-179)

Inquiries:  meet@ams.org

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