AMS Sectional Meeting Program by Day

Current as of Tuesday, April 12, 2005 15:09:04

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Program  |  Deadlines  |  Inquiries:  meet@ams.org

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Eastern 1993 Spring Sectional Meeting
Washington, DC, April 17-18, 1993
Meeting #881

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

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Sunday April 18, 1993

• Sunday April 18, 1993, 8:20 a.m.-10:50 a.m.
  Special Session on Nonlinear Elliptic Problems in Geometry and Physics, III
  Room 138, Douglass Hall
  

  • 8:20 a.m.
    The Dirichlet problem for a class of fully nonlinear elliptic equations.
    Bo Guan*, Indiana University, Bloomington
    (881-35-117)
  • 9:00 a.m.
    On Weyl problem with nonnegative Gauss curvature.
    Pengfei Guan*, McMaster University,
    Yanyan Li, Rutgers University, New Brunswick
    (881-58-28)
  • 9:40 a.m.
    Numerical solutions of boundary value problems for K-surfaces.
    Frank Baginski*, George Washington University
    Nate Whitaker, University of Massachusetts, Amherst
    (881-35-79)
  • 10:20 a.m.
    A non-minimal solution of the Yang-Mills-Higgs equation with positive coupling constant.
    Janet Talvacchia*, Swarthmore College
    (881-35-220)
• Sunday April 18, 1993, 8:30 a.m.-10:50 a.m.
  Special Session on Pure and Applied Recursion Theory, III
  Room 238, Douglass Hall
  

  • 8:30 a.m.
    (alpha,Beta)-selective sets.
    Georgia Martin*, University of Maryland, College Park
    (881-03-12)
  • 9:00 a.m.
    From recursive to on-line coloring of graphs.
    Henry A. Kierstead*, Arizona State University
    (881-03-56)
  • 9:30 a.m.
    Pure and applied PI^0_1 classes.
    Douglas Cenzer*, University of Florida
    (881-03-47)
  • 10:00 a.m.
    A cohesive degree which is not high.
    Carl Jockusch*, University of Illinois, Urbana-Champaign
    Frank Stephan, University of Karlsruhe, Germany
    (881-03-71)
  • 10:30 a.m.
    Jumps of minimal degrees below Q'.
    Rod Downey, Victoria University of Wellington, New Zealand
    Steffen Lempp, University of Wisconsin, Madison
    Richard A. Shore*, Cornell University
    (881-03-09)
• Sunday April 18, 1993, 8:30 a.m.-10:50 a.m.
  Special Session on Ergodic Theory, Dynamical Systems and Applications, III
  Room 201, Douglass Hall
  

  • 8:30 a.m.
    Suspensions, inheritance, and flows on homogeneous spaces.
    David B. Ellis*, Beloit College
    (881-54-34)
  • 9:00 a.m.
    Central configurations in the 1+n body problem.
    Glen Hall*, Boston University
    (881-70-160)
  • 9:30 a.m.
    On the dynamics of some polynomial root-finding algorithms.
    Scott Sutherland*, State University of New York, Stony Brook
    (881-58-35)
  • 10:00 a.m.
    Residual properties of alpha-flows.
    Andres del Junco, University of Toronto,
    Adam Fieldsteel*, Wesleyan University
    Kye-Won Park, Ajou University,
    (881-28-113)
  • 10:30 a.m.
    Entropy on noncompact spaces.
    Bruce Kitchens*, IBM T. J. Watson Research Center, Yorktown Heights, New York
    (881-28-38)
• Sunday April 18, 1993, 8:30 a.m.-10:50 a.m.
  Special Session on Geometric Methods in Combinatorics, III
  Room 105, Douglass Hall
  

  • 8:30 a.m.
    A poset of pseudoline arrangements.
    Walter D. Morris, Jr.*, George Mason University
    (881-90-22)
  • 9:00 a.m.
    Gram's relation inside out.
    Jim Lawrence*, George Mason University
    (881-52-206)
  • 9:30 a.m.
    Lattices and geometry.
    M. K. Bennett*, University of Massachusetts, Amherst
    (881-06-18)
  • 10:00 a.m.
    Applications of combinatorial geometries in model theory.
    Kitty L. Holland*, Simon Fraser University
    (881-03-197)
  • 10:30 a.m.
    The Borsuk conjecture holds for convex bodies with a belt of regular points.
    Boris Dekster*, Mount Allison University
    (881-52-11)
• Sunday April 18, 1993, 8:30 a.m.-10:50 a.m.
  Special Session on Low Dimensional Topology, III
  Room 136, Douglass Hall
  

  • 8:30 a.m.
    A diagrammatic theory of knotted surfaces.
    J. Scott Carter*, University of South Alabama
    Masahico Saito, University of Texas, Austin
    (881-57-60)
  • 9:00 a.m.
    The formal Knizhnik-Zamolodchikov connection and a universal knot invariant.
    Xiao-Song Lin*, Columbia University
    (881-57-62)
  • 9:30 a.m.
    A topological quantum theory approach to the Andrews-Curtis conjecture.
    Frank Quinn*, Virginia Polytechnic Institute and State University
    (881-57-68)
  • 10:00 a.m.
    Computing spectral flow via cup products.
    Paul Kirk*, Florida State University
    Eric Klassen, Indiana University, Bloomington
    (881-57-211)
  • 10:30 a.m.
    Infinite generation of PI_1(Diff(M)).
    John Kalliongis*, Saint Louis University
    Darryl McCullough, University of Oklahoma
    (881-57-53)
• Sunday April 18, 1993, 8:30 a.m.-10:40 a.m.
  Session on Contributed Papers, III
  Room 145, Douglass Hall
  

  • 8:30 a.m.
    The tangential structure of fractal measures.
    Christoph Bandt*, Ernst-Moritz-Arndt University, Germany
    (881-28-215)
  • 8:45 a.m.
    Discontinuous differential equations.
    Abdelkader Boucherif*, Georgia Institute of Technology
    Ghouti Boukli-Hacene, University of Tlemcen, Algeria
    (881-34-166)
  • 9:00 a.m.
    On a degenerate isotropic material.
    Ping Wang*, Pennsylvania State University, Schuykill
    (881-35-164)
  • 9:15 a.m.
    The linear shallow water theory: A mathematical justification.
    James A. Donaldson, Howard University
    Daniel A. Williams*, Howard University
    (881-35-165)
  • 9:30 a.m.
    Solutions of physical problems by decomposition.
    George Adomian*, General Analytics Corporation
    (881-35-191)
  • 9:45 a.m.
    Continuity of point derivations in Banach function algebras.
    S. I. Ouzomgi*, Pennsylvania State University, University Park
    (881-46-152)
  • 10:00 a.m.
    A new class of Banach spaces.
    Tepper L. Gill*, Howard University
    W. W. Zachary, Howard University
    (881-46-185)
  • 10:15 a.m.
    An extension of a fixed point theorem.
    S. P. Singh*, Memorial University of Newfoundland, Canada
    (881-47-124)
  • 10:30 a.m.
    Torsion relations in the spacetime tangent bundle.
    Howard E. Brandt*, Army Research Labaoratory, Maryland
    (881-53-133)
• Sunday April 18, 1993, 9:00 a.m.-10:50 a.m.
  Special Session on Geodesic Flows, Hyperbolic Geometry, and Symbolic Dynamics, I
  Room 237, Douglass Hall
  

  • 9:00 a.m.
    Markoff geodesics as matrices.
    Harvey Cohn*, City College, City University of New York
    (881-11-02)
  • 9:30 a.m.
    Invariant measures for general Gauss transforms.
    Andrew Haas*, University of Connecticut, Storrs
    (881-11-199)
  • 10:00 a.m.
    The continuous diophantine approximation mapping of Szekeres.
    Jeffrey C. Lagarias*, AT&T Bell Laboratories, Murray Hill, New Jersey
    Andrew D. Pollington, Brigham Young University
    (881-11-142)
  • 10:30 a.m.
    A rigidity theorem for surfaces of variable negative curvature.
    Steven P. Lalley*, Purdue University, West Lafayette
    (881-53-186)
• Sunday April 18, 1993, 9:00 a.m.-10:50 a.m.
  Special Session on Wavelets in Sampling Theory and Signal Processing, III
  Room 223, Douglass Hall
  

  • 9:00 a.m.
    Sampling and the multisensor deconvolution problem.
    David F. Walnut*, George Mason University
    (881-42-120)
  • 9:30 a.m.
    Wavelets on closed sets and applications.
    Bj\"orn Jawerth*, University of South Carolina, Columbia
    (881-42-212)
  • 10:00 a.m.
    Scale-angle representation: Application to frequency extraction and sampling.
    J-P. Antoine, University Catholique de Louvain, Belgium
    P. Carrette, University Catholique de Louvain, Belgium
    R. Murenzi*, Clark Atlanta University
    (881-62-168)
  • 10:30 a.m.
    An almost orthogonal radial wavelet expansion for radial distributions.
    Jay Epperson, University of New Mexico
    Michael Frazier*, Michigan State University
    (881-41-146)
• Sunday April 18, 1993, 9:00 a.m.-10:50 a.m.
  Special Session on Graph Theory, III
  Room 216, Douglass Hall
  

  • 9:00 a.m.
    Rectilinear crossing number of a complete graph and Sylvester's "Four Point Problem" of geometric probabilty.
    Edward R. Scheinerman*, Johns Hopkins University
    Herbert S. Wilf, University of Pennsylvania
    (881-05-57)
  • 9:30 a.m.
    The Dinitz problem solved for rectangles.
    Jeannette C. M. Janssen*, Lehigh University
    (881-05-148)
  • 10:00 a.m.
    On p-intersection representations.
    Nancy Eaton, University of Rhode Island
    Ronald J. Gould*, Emory University
    Vojtech Rodl, Emory University
    (881-05-138)
  • 10:30 a.m.
    Nowhere-zero 4-flows of solvable Cayley graphs.
    B. Alspach, Simon Fraser University
    Y-P. Liu, Nanjing Normal, People's Republic of China
    C-Q Zhang*, West Virginia University
    (881-05-31)
• Sunday April 18, 1993, 9:00 a.m.-10:50 a.m.
  Special Session on Undergraduate Research in Applied Mathematics, III
  Room 205, Douglass Hall
  

  • 9:00 a.m.
    Consistency in cooperative game theory.
    Roger Lee*, Cambridge, Massachusetts
    (881-90-103)
  • 9:30 a.m.
    Reasonable allocations for PFF and CFF games.
    Luz E. Pinzon*, Rutgers University, New Brunswick
    (881-90-94)
  • 10:00 a.m.
    Compound Poisson approximations for word patterns.
    Garrick Lee Wallstrom*, Abington, Massachusetts
    Allison Michelle Skolnick, East Brunswick, New Jersey
    (881-60-96)
  • 10:30 a.m.
    Statistical tests for Markov-dependence.
    Sharyn Campbell*, Youngstown, Ohio
    (881-62-111)
• Sunday April 18, 1993, 9:00 a.m.-10:50 a.m.
  Special Session on Undergraduate Research in Pure Mathematics, III
  Room 204, Douglass Hall
  

  • 9:00 a.m.
    Some results in Euclidean plane geometry.
    Nathan Dunfield*, Corvallis, Oregon
    (881-51-91)
  • 9:30 a.m.
    Factorization in K[x^2,x^3].
    Faith Inman*, University of North Carolina, Greensboro
    (881-16-90)
  • 10:00 a.m.
    Unknotting numbers and minimal knot diagrams.
    James A. Bernhard*, Princeton University
    (881-55-105)
  • 10:30 a.m.
    Mapping class groups of compact 2-manifolds.
    Dean Hildebrandt*, Harvard University
    (881-55-89)
• Sunday April 18, 1993, 9:00 a.m.-10:50 a.m.
  Special Session on Mathematics of Two-dimensional Quantum Field Theory, III
  Room 137, Douglass Hall
  

  • 9:00 a.m.
    Irreducible representations of affine superalgebras and number theory.
    Victor Kac*, Massachusetts Institute of Technology
    Minoru Wakimoto, Mie University, Japan
    (881-17-175)
  • 9:40 a.m.
    Representations of Kac-Moody algebras and quantum groups.
    David Kazhdan*, Harvard University
    George Lusztig, Massachusetts Institute of Technology
    (881-17-178)
  • 10:20 a.m.
    A q-deformation of Wakimoto representation and the quantum Knizhnik-Zamolodchikov equation.
    Atsushi Matsuo*, Nagoya University, Japan
    (881-81-176)
• Sunday April 18, 1993, 9:00 a.m.-10:50 a.m.
  Special Session on History of Mathematics, III
  Room 103, Douglass Hall
  

  • 9:00 a.m.
    Calculus after the calculus.
    Paul D. Scofield*, Washington & Lee University
    (881-01-167)
  • 9:40 a.m.
    Saint Vincent and the logarithm.
    V. Frederick Rickey*, Bowling Green State University
    (881-01-190)
  • 10:15 a.m.
    Pascal's triangle and the solution of polynolmial equations.
    Victor J. Katz*, University of the District of Columbia
    (881-01-162)
• Sunday April 18, 1993, 9:30 a.m.-10:50 a.m.
  Special Session on Dilation and Interpolation: Operator Theoretic Methods, III
  Room 133, Douglass Hall
  

  • 9:30 a.m.
    A Krein space extension of the Caratheodory-Fejer problem.
    Gene B. Christner*, University of Virginia
    (881-47-50)
  • 10:00 a.m.
    Julia operators and coefficient problems.
    James Rovnyak*, University of Virginia
    (881-47-51)
  • 10:30 a.m.
    Operator theory and the Bose-like oscillator.
    Marvin Rosenblum*, University of Virginia
    (881-47-161)
• Sunday April 18, 1993, 11:00 a.m.-11:50 a.m.
  Invited Address
  On the existence of convex hypersurfaces of constant Gauss curvature in hyperbolic space.
  Biology Greenhouse Auditorium, Just Hall
  Joel Spruck*, Johns Hopkins University
  (881-53-219)
• Sunday April 18, 1993, 1:30 p.m.-2:20 p.m.
  Invited Address
  Geodesic flows and continued fractions.
  Biology Greenhouse Auditorium, Just Hall
  Leopold Flatto*, AT&T Bell Laboratories, Murray Hill, New Jersey
  (881-58-129)
• Sunday April 18, 1993, 2:40 p.m.-4:30 p.m.
  Special Session on Geodesic Flows, Hyperbolic Geometry, and Symbolic Dynamics, II
  Room 237, Douglass Hall
  

  • 2:40 p.m.
    Fricke groups and continued fractions.
    David Steinbach*, Mathematical Sciences Research Institute, California
    (881-41-192)
  • 3:10 p.m.
    Symbolic dynamics and flow on the Hecke surfaces.
    Thomas A. Schmidt*, Widener University
    (881-58-83)
  • 3:40 p.m.
    Intersections of closed geodesics on hyperbolic surfaces.
    Thea Pignataro, City College, City University of New York
    Hanna Sandler*, American University
    (881-51-69)
  • 4:10 p.m.
    beta-Transformations and zeros for a class of power series.
    Boris Solomyak*, University of Washington
    (881-58-46)
• Sunday April 18, 1993, 2:40 p.m.-3:30 p.m.
  Special Session on Wavelets in Sampling Theory and Signal Processing, IV
  Room 223, Douglass Hall
  

  • 2:40 p.m.
    Deconvolution, splines, Shannon sampling, and wavelets.
    Stephen D. Casey*, American University
    (881-42-193)
  • 3:10 p.m.
    Some algebraic obstructions to the existence of compactly supported symmetric wavelets.
    Chris Brislawn*, Los Alamos National Laboratory
    (881-41-20)
• Sunday April 18, 1993, 2:40 p.m.-4:30 p.m.
  Special Session on Graph Theory, IV
  Room 216, Douglass Hall
  

  • 2:40 p.m.
    Maximal and forbidden unit distance graphs in the plane.
    Carolyn R. Mahoney*, California State University, San Marcos
    Kiran B. Chilakamarri, Central State University
    (881-05-169)
  • 3:10 p.m.
    Extreme values of the edge-neighbor-connectivity.
    Margaret B. Cozzens*, National Science Foundation, Washington, DC
    Shu-Shih Yang Wu, Northeastern University
    (881-05-184)
  • 3:40 p.m.
    Sturdy networks.
    Barry Piazza, University of Southern Mississippi
    Fred Roberts*, Rutgers University, New Brunswick
    Sam Stueckle, Northeastern University
    (881-05-135)
  • 4:10 p.m.
    Strongly connected mixed graphs and connected detachments of graphs.
    C. St. J. A. Nash-Williams*, University of Reading, England
    (881-05-134)
• Sunday April 18, 1993, 2:40 p.m.-4:30 p.m.
  Special Session on Undergraduate Research in Applied Mathematics, IV
  Room 205, Douglass Hall
  

  • 2:40 p.m.
    Exotic curves on the Genus-2 handlebody.
    Michael Bolt*, Grand Rapids, Michigan
    (881-53-100)
  • 3:10 p.m.
    Counting critical points of polynomials.
    Ian B. Robertson*, OCMR 1394, Oberlin, Ohio
    (881-26-95)
  • 3:40 p.m.
    An investigation of lifting modulo p as a method for computing Grobner bases.
    William L. Cooper*, Philadelphia, Pennsylvania
    Janine Ladick, Louisville, Kentucky
    (881-12-87)
  • 4:10 p.m.
    Computational methods for the Igusa local Zeta function.
    Frederic Schoenberg*, Brown University
    (881-11-88)
• Sunday April 18, 1993, 2:40 p.m.-5:00 p.m.
  Special Session on Undergraduate Research in Pure Mathematics, IV
  Room 204, Douglass Hall
  

  • 2:40 p.m.
    Upper bounds for covering numbers.
    Sandra Thompson*, Minneapolis, Minnesota
    Eric Vigoda, Rochester, New York
    (881-05-104)
  • 3:10 p.m.
    Randomly C_4-decomposable graphs.
    Daniel Isaksen*, Berkeley, California
    (881-05-98)
  • 3:40 p.m.
    Which Cayley graphs of prime power order are isomorphic?.
    Andrew J. Mauer*, Williams College
    (881-05-99)
  • 4:10 p.m.
    Structural characteristics of V_n(G).
    David Weinreich*, Emory University
    (881-05-97)
  • 4:40 p.m.
    Characterization of singular graphs.
    Maryanne Brown*, Newton, Massachusetts
    (881-05-101)
• Sunday April 18, 1993, 2:40 p.m.-4:00 p.m.
  Special Session on Ergodic Theory, Dynamical Systems and Applications, IV
  Room 201, Douglass Hall
  

  • 2:40 p.m.
    Factors of Cartesian products of nonsingular Chacon maps.
    A. del Junco, University of Toronto
    Cesar E. Silva*, Williams College
    (881-28-141)
  • 3:10 p.m.
    Remarks on ergodic transformations isomorphic to their inverses.
    Geoffrey R. Goodson*, Towson State University
    Daniel J. Rudolph, University of Maryland, College Park
    (881-28-33)
  • 3:40 p.m.
    Shadowing and global error of differential equations calculations.
    Tim Sauer*, George Mason University
    (881-58-43)
• Sunday April 18, 1993, 2:40 p.m.-5:10 p.m.
  Special Session on Nonlinear Elliptic Problems in Geometry and Physics, IV
  Room 138, Douglass Hall
  

  • 2:40 p.m.
    Adding handles to the helicoid.
    David Hoffman*, University of Massachusetts, Amherst
    Hermann Karcher, University of Bonn, Germany
    Fusheng Wei, Texas A\thsp\&\thsp M University, College Station
    (881-53-29)
  • 3:20 p.m.
    The Dirichlet energy of mappings on spheres.
    D. Zhang*, Johns Hopkins University
    (881-53-82)
  • 4:00 p.m.
    Regular homotopy classes of minimal surfaces.
    Rob Kusner*, Institute for Advanced Study
    Nick Schmitt, University of Massachusetts, Amherst
    (881-53-27)
  • 4:40 p.m.
    Nodal sets on Riemannian manifolds.
    Rui-Tao Dong*, Johns Hopkins University
    (881-53-121)
• Sunday April 18, 1993, 2:40 p.m.-4:00 p.m.
  Special Session on Low Dimensional Topology, IV
  Room 136, Douglass Hall
  

  • 2:40 p.m.
    A subgroup of the mapping class group compatible with surgery.
    Lawrence Smolinsky*, Louisiana State University, Baton Rouge
    (881-57-65)
  • 3:10 p.m.
    A simple proof of the Traczyk Yokota criteria for periodic knots.
    J\'ozef H. Przytycki*, Odense University,
    (881-57-45)
  • 3:40 p.m.
    Minimal energy electrostatic knots.
    Samuel J. Lomonaco, Jr.*, University of Maryland Baltimore County
    (881-78-21)
• Sunday April 18, 1993, 2:45 p.m.-4:35 p.m.
  Special Session on Mathematics of Two-dimensional Quantum Field Theory, IV
  Room 137, Douglass Hall
  

  • 2:45 p.m.
    Introduction to W-algebras.
    Kareljan Schoutens*, Joseph Henry Laboratories, Princeton University
    (881-81-179)
  • 3:25 p.m.
    Semi-infinite cohomology of W-algebras.
    Peter Bouwknegt*, University of Southern California
    (881-81-172)
  • 4:05 p.m.
    Dilogarithm identities, q-difference equations, and the Virasoro algebra.
    Edward Frenkel, Harvard University
    Andras Szenes*, Massachusetts Institute of Technology
    (881-17-181)
• Sunday April 18, 1993, 2:45 p.m.-4:20 p.m.
  Special Session on History of Mathematics, IV
  Room 103, Douglass Hall
  

  • 2:45 p.m.
    Biographical remarks on the life and work of Joaquin Basilio Diaz.
    Florence Fasanelli*, Mathematical Association of America
    (881-01-84)
  • 3:20 p.m.
    Calculus for a new century: Granville, Smith and Longley.
    George M. Rosenstein*, Franklin & Marshall College
    (881-01-26)
  • 3:50 p.m.
    Thomas Jefferson's contributions to mathematics.
    J. J. Tattersall*, Providence College
    (881-01-63)
• Sunday April 18, 1993, 3:00 p.m.-4:20 p.m.
  Special Session on Pure and Applied Recursion Theory, IV
  Room 238, Douglass Hall
  

  • 3:00 p.m.
    Using second order logic.
    John N. Crossley*, Monash University, Australia
    (881-03-154)
  • 3:30 p.m.
    The two quantifier theory of the recursively enumerable weak truth-table degrees in decidable.
    Klaus Ambos-Spies, University of Heidelberg, Germany
    Peter A. Fejer*, University of Massachusetts, Boston
    Steffen Lempp, University of Wisconsin, Madison
    Manuel Lerman, University of Connecticut, Storrs
    (881-03-58)
  • 4:00 p.m.
    Recent progress in priority theory.
    K. Kontostathis*, Villanova University
    (881-03-64)

Inquiries:  meet@ams.org

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