AMS Sectional Meeting Full Program

Current as of Tuesday, April 12, 2005 15:09:03

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Program  |  Deadlines  |  Inquiries:  meet@ams.org

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Western 1993 Sectional Meeting
Salt Lake City, UT, April 9-10, 1993
Meeting #880

Associate secretaries:
Lance W Small, AMS lwsmall@ucsd.edu

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Friday April 9, 1993

• Friday April 9, 1993, 8:30 a.m.-10:50 a.m.
  Special Session on Hopf Algebras and Hopf Algebra Actions, I
  Parlor A, Union Building
  

  • 8:30 a.m.
    Categories of Hopf modules and their reconstruction Hopf algebras.
    Bodo Pareigis*, University of Munich, Germany
    (880-16-15)
  • 9:00 a.m.
    The Grothendieck group of a Hopf algebra.
    Warren D. Nichols, Florida State University
    Bettina Richmond*, Western Kentucky University
    (880-16-74)
  • 9:30 a.m.
    Solutions to the quantum Yang-Baxter equation arising from pointed bialgebras.
    David E. Radford*, University of Illinois, Chicago
    (880-16-81)
  • 10:00 a.m.
    Braided bialgebras and completed-triangular bialgebras.
    Richard G. Larson*, University of Illinois, Chicago
    Jacob Towber, DePaul University
    (880-16-58)
  • 10:30 a.m.
    Right crossed products and duality theorems.
    Margaret Beattie*, Mount Allison University, New Brunswick
    (880-16-06)
• Friday April 9, 1993, 8:30 a.m.-10:45 a.m.
  Special Session on Effective Properties of Inhomogeneous Materials, I
  Collegiate, Union Building
  

  • 8:30 a.m.
    Recent developments in the analysis of effective properties of inhomogeneous materials.
    George Papanicolaou*, Courant Institute of Mathematical Sciences, New York University
    (880-60-91)
  • 9:40 a.m.
    Correspondence between planar elasticity and two-dimensional complex conductivity.
    G. W. Milton*, Courant Institute of Mathematical Sciences, New York University
    A. V. Cherkaev, University of Utah
    A. B. Movchan, University of Bath, England
    (880-73-77)
  • 10:15 a.m.
    On the stiffness of materials containing a disordered array of microscopic holes or hard inclusions.
    Oscar P. Bruno*, Georgia Institiute of Technology
    Perry H. Leo, University of Minnesota, Minneapolis
    (880-73-49)
• Friday April 9, 1993, 8:30 a.m.-10:50 a.m.
  Special Session on Commutative Algebra and Modules, I
  Room 312, Union Building
  

  • 8:30 a.m.
    Polynomial maps and Zariski's main theorem.
    Shreeram S. Abhyankar*, Purdue University, West Lafayette
    (880-14-05)
  • 9:00 a.m.
    J. C., Maximal ideals and coincidences.
    Eloise Hamann*, San Jose State University
    (880-13-13)
  • 9:30 a.m.
    On the restriction of the Picard group of a normal quasi-projective variety to a hypersurface section.
    S. D. Cutkosky*, University of Missouri, Columbia
    (880-13-21)
  • 10:00 a.m.
    Local cohomological dimension of algebraic varieties in characteristic p > 0 is algorithmically computable.
    Gennady Lyubeznik*, University of Minnesota, Minneapolis
    (880-13-95)
  • 10:30 a.m.
    The ring of glued polynomials on the union of hyperplanes.
    S. Yuzvinsky*, University of Oregon
    C. O'Connor, Shawnee State University
    (880-13-03)
• Friday April 9, 1993, 8:30 a.m.-10:50 a.m.
  Special Session on Partial Differential Equations and Several Complex Variables, I
  Den, Union Building
  

  • 8:30 a.m.
    Homotopy formulas in the tangential Cauchy-Riemann complex.
    Mei-Chi Shaw*, University of Notre Dame
    (880-32-26)
  • 9:00 a.m.
    Parametrices for a class of Schrodinger equations with variable coefficients.
    Fran\c cois Treves*, Rutgers University, New Brunswick
    (880-35-51)
  • 9:30 a.m.
    The Bergman projector of a convex domain.
    Jeffery D. McNeal*, Princeton University
    (880-32-88)
  • 10:00 a.m.
    Analytic hypoellipticity for the sum of squares of vector fields.
    A. Alexandrou Himonas*, Institute for Advanced Study, Princeton University
    (880-35-34)
  • 10:30 a.m.
    Mappings of nondegenerate locally polyhedral domains.
    David E. Barrett*, University of Michigan, Ann Arbor
    (880-32-69)
• Friday April 9, 1993, 9:00 a.m.-10:50 a.m.
  Special Session on Singularities of Geometric Partial Differential Equations, I
  Room 324, Union Building
  

  • 9:00 a.m.
    Energy minimizing mappings between singular spaces.
    Jingyi Chen*, University of California, Irvine
    (880-53-66)
  • 9:30 a.m.
    Blow-up of heat flow of harmonic maps with a free boundary condition.
    Yunmei Chen*, University of Florida
    Fang-Hua Lin, Courant Institute of Mathematical Sciences, New York University
    (880-35-36)
  • 10:00 a.m.
    Moduli spaces for complete metrics of constant positive scalar curvature.
    Rafe Mazzeo*, University of Washington and Stanford University
    Dan Pollack, University of Texas, Austin
    (880-35-78)
  • 10:30 a.m.
    Discussion
• Friday April 9, 1993, 9:00 a.m.-10:50 a.m.
  Session on Contributed Papers
  Room 319, Union Building
  

  • 9:00 a.m.
    Torsion of differentials of affine quasi-homogeneous hypersurfaces.
    Ruth Ingrid Michler*, University of California, Berkeley
    (880-13-84)
  • 9:20 a.m.
    A dynamic contact problem in thermal viscoelasticity.
    Kenneth Kuttler*, Michigan Technological University
    Meir Shillor, Oakland University
    (880-35-09)
  • 9:40 a.m.
    Line integrals of monotone operators.
    Russell Bilyeu*, University of North Texas
    (880-46-01)
  • 10:00 a.m.
    Unconditionally converging operators, V-sets, and vector measures.
    Paul Lewis*, University of North Texas
    (880-46-10)
  • 10:20 a.m.
    Variational principles for differential equations with symmetries and conservation laws.
    Ian M. Anderson, Utah State University
    Juha Pohjanpelto*, Oregon State University
    (880-49-92)
  • 10:40 a.m.
    The center density of sphere packing in dimension zero.
    C. Muses*, Mathematics & Morphology Research Center, Canada
    (880-51-48)
• Friday April 9, 1993, 11:00 a.m.-11:50 a.m.
  Invited Address
  Primitive permutation groups and coverings of curves.
  Main Ballroom, Union Building
  Robert M. Guralnick*, University of Southern California
  (880-20-04)
• Friday April 9, 1993, 2:00 p.m.-2:50 p.m.
  Invited Address
  Percolation problems in materials science.
  Main Ballroom, Union Building
  Kenneth Golden*, University of Utah
  (880-35-50)
• Friday April 9, 1993, 3:00 p.m.-6:00 p.m.
  Special Session on Hopf Algebras and Hopf Algebra Actions, II
  Parlor A, Union Building
  

  • 3:00 p.m.
    Construction of quantum groups from Belavin-Drinfeld infinitesimals.
    Murray Gerstenhaber*, University of Pennsylvania
    Anthony Giaquinto, University of Michigan, Ann Arbor
    S. D. Schack, State University of New York, Buffalo
    (880-16-46)
  • 3:30 p.m.
    Multiparameter quantum enveloping algebras.
    William Chin, DePaul University
    Jacob Towber, DePaul University
    Richard Larson, University of Illinois, Chicago
    Ian M. Musson*, University of Wisconsin, Milwaukee
    (880-16-42)
  • 4:00 p.m.
    Nonstandard quantized enveloping algebras.
    Anthony Giaquinto*, University of Michigan, Ann Arbor
    (880-16-73)
  • 4:30 p.m.
    Prime spectra of skew polynomial rings.
    Edward S. Letzter*, Texas A\thsp\&\thsp M University, College Station
    (880-16-47)
  • 5:00 p.m.
    Hopf algebras of low dimension.
    Warren D. Nichols*, Florida State University
    Roselyn Williams, Florida A & M University
    (880-16-87)
  • 5:30 p.m.
    Quantum groups and q-difference equations.
    N. Reshetikhin*, University of California, Berkeley
    (880-16-97)
• Friday April 9, 1993, 3:00 p.m.-5:00 p.m.
  Special Session on Effective Properties of Inhomogeneous Materials, II
  Collegiate, Union Building
  

  • 3:00 p.m.
    A comparison of methods for estimating the effective properties of nonlinear composites.
    P. Ponte-Casta\~neda*, University of Pennsylvania
    (880-73-37)
  • 3:35 p.m.
    Effective yield behavior of rigid/plastic composite materials.
    Tamara Olson*, Brigham Young University
    (880-73-35)
  • 4:30 p.m.
    Fine scale microstructure in Martensitic phase transformations.
    Kaushik Bhattacharya*, Courant Institute of Mathematical Sciences, New York University
    (880-73-53)
• Friday April 9, 1993, 3:00 p.m.-4:50 p.m.
  Special Session on Singularities of Geometric Partial Differential Equations, II
  Room 324, Union Building
  

  • 3:00 p.m.
    Compactness results for the singular Yamabe problem.
    Daniel Pollack*, University of Texas, Austin
    (880-35-80)
  • 3:30 p.m.
    Uniqueness in motion by mean curvature.
    Tom Ilmanen*, University of Wisconsin, Madison
    (880-35-82)
  • 4:00 p.m.
    Location of singularities of p-harmonic maps.
    Robert Hardt*, Rice University
    (880-35-30)
  • 4:30 p.m.
    Local behavior of solutions of heat equations for harmonic maps from surfaces near singular points.
    Jie Qing*, University of California, Los Angeles
    (880-53-60)
• Friday April 9, 1993, 3:00 p.m.-5:50 p.m.
  Special Session on Commutative Algebra and Modules, II
  Room 312, Union Building
  

  • 3:00 p.m.
    On the fitting ideals in free resolutions.
    Hsin-Ju Wang*, Purdue University, West Lafayette
    (880-13-27)
  • 3:30 p.m.
    Tensor products of modules over 1-dimensional local rings.
    Craig Huneke*, Purdue University, West Lafayette
    Roger Wiegand, Purdue University, West Lafayette
    (880-13-14)
  • 4:00 p.m.
    The asymptotic behavior of Hilbert-Kunz functions and their generalizations.
    Shou-Te Chang*, University of Michigan, Ann Arbor
    (880-13-44)
  • 4:30 p.m.
    Reduction numbers, Rees algebras, and Pfaffian ideals.
    Sam Huckaba, Florida State University
    Craig Huneke, Purdue University, West Lafayette
    Ian M. Aberbach*, Purdue University, West Lafayette
    (880-13-57)
  • 5:00 p.m.
    Higher structures on infinite resolutions.
    Luchezar L. Avramov*, Purdue University, West Lafayette
    Vesselin N. Gasharov, Brandeis University
    Irena V. Peeva, Brandeis University
    (880-13-72)
  • 5:30 p.m.
    Zero cycles and projective modules.
    M. Pavaman Murthy*, University of Chicago
    (880-13-93)
• Friday April 9, 1993, 3:00 p.m.-4:50 p.m.
  Special Session on Partial Differential Equations and Several Complex Variables, II
  Den, Union Building
  

  • 3:00 p.m.
    Discussion
  • 3:30 p.m.
    Global Mizohata operators.
    Howard Jacobowitz*, Rutgers University, Camden
    (880-35-12)
  • 4:00 p.m.
    Hyperfunction theory on hypoanalytic structures.
    Paulo D. Cordaro*, Institute for Advanced Study, Princeton University
    (880-35-33)
  • 4:30 p.m.
    Unique continuation and a Schwarz reflection principle for analytic sets.
    M. S. Baouendi, University of California at San Diego, La Jolla
    Linda P. Rothschild*, University of California at San Diego, La Jolla
    (880-32-85)

Saturday April 10, 1993

• Saturday April 10, 1993, 8:00 a.m.-10:45 a.m.
  Special Session on Effective Properties of Inhomogeneous Materials, III
  Collegiate, Union Building
  

  • 8:00 a.m.
    Relaxation of nonself-adjoint problems of optimal design.
    Konstantin Lurie*, Worcester Polytechnic Institute
    (880-49-68)
  • 8:35 a.m.
    An approach to relation of optimal design problems.
    A. V. Cherkaev*, University of Utah
    (880-49-67)
  • 9:40 a.m.
    Bounds on the effective properties of composites: Translation method and its geometrical interpretation.
    Leonid V. Gibiansky*, Courant Institute of Mathematical Sciences, New York University
    (880-73-75)
  • 10:15 a.m.
    A set of materials which is stable under lamination.
    Vincenzo Nesi*, University of L'Aquila, Italy
    (880-73-76)
• Saturday April 10, 1993, 8:30 a.m.-10:50 a.m.
  Special Session on Hopf Algebras and Hopf Algebra Actions, III
  Parlor A, Union Building
  

  • 8:30 a.m.
    Hopf algebras dual to the multiparameter deformation of the coordinate ring of n by n matrices.
    William Chin*, DePaul University and University of Southern California
    (880-16-43)
  • 9:00 a.m.
    Crossed products of Hopf algebras.
    M. Susan Montgomery*, University of Southern California
    Hans-Jurgen Schneider, University Munchen, Germany
    (880-16-08)
  • 9:30 a.m.
    Chain conditions and Lie algebra actions.
    Jeffrey Bergen*, DePaul University
    (880-16-90)
  • 10:00 a.m.
    The Connes spectrum under ore extension.
    James Osterburg*, University of Cincinnati
    Xue Yao, University of Cincinnati
    (880-16-16)
  • 10:30 a.m.
    Braided bialgebras.
    Jack Towber*, De Paul University
    (880-16-23)
• Saturday April 10, 1993, 8:30 a.m.-10:50 a.m.
  Special Session on Commutative Algebra and Modules, III
  Room 312, Union Building
  

  • 8:30 a.m.
    On the Canonical element conjecture.
    S. P. Dutta*, University of Illinois, Urbana-Champaign
    (880-13-02)
  • 9:00 a.m.
    Rings of invariants: The Cohen-Macaulay property and F-rationality.
    Donna Glassbrenner*, University of Virginia
    (880-13-28)
  • 9:30 a.m.
    On the Hilbert function of determinantal rings.
    J. Herzog*, Purdue University, West Lafayette and University of Essen, Germany
    A. Conca, Purdue University, West Lafayette and University of Essen, Germany
    (880-13-55)
  • 10:00 a.m.
    Tight closure and big Cohen-Macauley algebras.
    Melvin Hochster*, University of Michigan, Ann Arbor
    (880-13-24)
  • 10:30 a.m.
    On a certain class of algebraically independent elements.
    William Heinzer, Purdue University, West Lafayette
    Christel Rotthaus*, Michigan State University
    Judith D. Sally, Northwestern University
    (880-13-29)
• Saturday April 10, 1993, 8:30 a.m.-10:50 a.m.
  Special Session on Partial Differential Equations and Several Complex Variables, III
  Den, Union Building
  

  • 8:30 a.m.
    Infinitesimal CR automorphisms of rigid hypersurfaces.
    Nancy K. Stanton*, University of Notre Dame
    (880-32-32)
  • 9:00 a.m.
    Global regularity on pseudo convex domains.
    Joseph J. Kohn*, Princeton University
    (880-35-39)
  • 9:30 a.m.
    Topological encoding of the symbol of transversally elliptic operators.
    Gerardo A. Mendoza*, Temple University
    (880-35-63)
  • 10:00 a.m.
    Problems in extending analytic varieties.
    Yeren Xu*, Temple University, Philadelphia
    (880-32-52)
  • 10:30 a.m.
    First integrals for compact involutive structures.
    Nicholas Hanges*, Herbert H. Lehman College, City University of New York
    (880-35-18)
• Saturday April 10, 1993, 9:00 a.m.-10:50 a.m.
  Special Session on Singularities of Geometric Partial Differential Equations, III
  Room 324, Union Building
  

  • 9:00 a.m.
    Conformally invariant energy functionals.
    Libin Mou, University of California, Los Angeles
    Paul Yang*, University of California, Los Angeles
    (880-35-79)
  • 9:30 a.m.
    Discussion
  • 10:00 a.m.
    Functions whose graphs are Lipschitz manifolds.
    Tatiana Toro*, Institute for Advanced Study, Princeton University
    (880-28-65)
  • 10:30 a.m.
    Harmonic functions and the structure of complete manifolds.
    Peter Li, University of California, Irvine
    Luen-Fai Tam*, University of California, Irvine
    (880-53-94)
• Saturday April 10, 1993, 9:30 a.m.-10:50 a.m.
  Special Session on Stochastic Processes in Population Genetics, I
  Room 323A, Union Building
  

  • 9:30 a.m.
    Neutral allelic genealogy.
    S. N. Ethier*, University of Utah
    Tokuzo Shiga, Tokyo Institue of Technology, Japan
    (880-92-70)
  • 10:00 a.m.
    Parameter estimation for multi-class selection models.
    Paul Joyce*, University of Idaho
    Simon Tavare, University of Southern California
    (880-60-20)
  • 10:30 a.m.
    Approximations of population genetic models as measure-valued processes.
    Ming He*, University of Utah
    (880-60-71)
• Saturday April 10, 1993, 11:00 a.m.-11:50 a.m.
  Invited Address
  Sequence comparisons in molecular biology.
  Main Ballroom, Union Building
  Michael S. Waterman*, University of Southern California
  (880-92-40)
• Saturday April 10, 1993, 2:00 p.m.-2:50 p.m.
  Invited Address
  Analytic hypoellipticity, nonlinear eigenvalues, and nilpotent group representations.
  Main Ballroom, Union Building
  Michael Christ*, University of California, Los Angeles
  (880-35-45)
• Saturday April 10, 1993, 3:00 p.m.-5:45 p.m.
  Special Session on Effective Properties of Inhomogeneous Materials, IV
  Collegiate, Union Building
  

  • 3:00 p.m.
    Homogenization of multiscaled media.
    Serguei Kozlov*, University of Provence, Marseilles, France
    (880-35-41)
  • 3:35 p.m.
    A "streched checkerboard" model of an orthotropic elastic composite of two vastly different materials.
    Leonid Berlyand*, Pennsylvania State University, University Park
    Oleg Gendelman, Russian Academy of Sciences, Moscow
    (880-35-56)
  • 4:40 p.m.
    Conductance fluctuations in random media.
    Jan Wehr*, University of Arizona
    (880-82-89)
  • 5:15 p.m.
    Convection enhanced diffusion.
    Albert Fannjiang*, University of California, Los Angeles
    George Papanicolaou, Courant Institute of Mathematical Sciences, New York University
    (880-76-59)
• Saturday April 10, 1993, 3:00 p.m.-4:50 p.m.
  Special Session on Singularities of Geometric Partial Differential Equations, IV
  Room 324, Union Building
  

  • 3:00 p.m.
    Curvature and singularity.
    S. Walter Wei*, University of Oklahoma
    (880-53-17)
  • 3:30 p.m.
    Classification of the solutions of a singular elliptic P.D.E.
    Wenxiong Chen*, Southwest Missouri State University
    Congming Li, University of Colorado, Boulder
    (880-35-61)
  • 4:00 p.m.
    Discussion
• Saturday April 10, 1993, 3:00 p.m.-4:20 p.m.
  Special Session on Stochastic Processes in Population Genetics, II
  Room 323A, Union Building
  

  • 3:00 p.m.
    Inference for the coalescent.
    R. C. Griffiths, Monash University, Australia
    S. Tavar\'e*, University of Southern California
    (880-60-07)
  • 3:30 p.m.
    A relation between Fleming-Viot processes and measure-valued branching diffusions.
    Stephen Krone*, University of Utah
    S. N. Ethier, University of Utah
    (880-60-62)
  • 4:00 p.m.
    The coalescent, ladder models and hypervariable loci.
    P. Donnelly*, Queen Mary & Westfield College, England
    A. Roe, Queen Mary & Westfield College, England
    (880-60-11)
• Saturday April 10, 1993, 3:00 p.m.-5:50 p.m.
  Special Session on Commutative Algebra and Modules, IV
  Room 312, Union Building
  

  • 3:00 p.m.
    Reflexive modules over normal domains.
    Frank Demeyer*, Colorado State University
    Kim Regnier, Colorado State University
    (880-13-22)
  • 3:30 p.m.
    Local duality for Matlis reflexive modules.
    Richard Belshoff, Southwest Missouri State University
    Cameron Wickham*, Southwest Missouri State University
    (880-13-64)
  • 4:00 p.m.
    Characterization of completions of unique factorization domains.
    Raymond C. Heitmann*, University of Texas, Austin
    (880-13-31)
  • 4:30 p.m.
    Krull-Schmidt theorems in dimension 1.
    Lawrence S. Levy*, University of Wisconsin, Madison
    Charles J. Odenthal, University of Toledo
    (880-16-54)
  • 5:00 p.m.
    On weak liftings of modules.
    Songqing Ding*, Texas Tech University
    (880-13-38)
  • 5:30 p.m.
    Noncommutative algebra and algebraic geometry.
    Alexander Rosenberg*, University of Utah
    (880-13-83)
• Saturday April 10, 1993, 3:00 p.m.-4:50 p.m.
  Special Session on Partial Differential Equations and Several Complex Variables, IV
  Den, Union Building
  

  • 3:00 p.m.
    Loop spaces as complex manifolds.
    L\'aszl\'o Lempert*, Purdue University, West Lafayette
    (880-32-19)
  • 3:30 p.m.
    Degrees for proper holomorphic mappings between balls.
    John P. D'Angelo*, University of Illinois, Urbana-Champaign
    (880-32-25)
  • 4:00 p.m.
    Global analyticity for square_b on three dimensional CR manifolds.
    David S. Tartakoff*, University of Illinois, Chicago
    Makhlouf Derridj, University of Paris-Sud, France
    (880-32-96)
  • 4:30 p.m.
    Geometry of analytic discs attached to real submanifolds of complex space.
    M. S. Baouendi*, University of California at San Diego, La Jolla
    (880-32-86)

Inquiries:  meet@ams.org

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