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AMS Sectional Meeting Program by Day

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

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Central 1993 Spring Sectional Meeting
DeKalb, IL, May 20-23, 1993
Meeting #882

Associate secretaries:
Andy R Magid, AMS

Friday May 21, 1993

  • Friday May 21, 1993, 8:00 a.m.-10:50 a.m.
    Special Session on Combinatorics, II

    Room 204A, DuSable Hall

    • 8:00 a.m.
      On generalizations of the deBruijn-Erdos Theorem.
      Hunter S. Snevily*, California Institute of Technology
    • 8:30 a.m.
      New constructions of bipartite graphs on m,n vertices, with many edges, and without small cycles.
      Felix Lazebnik*, University of Delaware
      V. A. Ustimenko, Kiev State University, Ukraine
      A. J. Woldar, Villanova University
    • 9:00 a.m.
      Turan type results for graphs with many triangles.
      P. Erd\"os, Hungarian Academy of Science, Hungary
      Z. F\"uredi, University of Illinois, Urbana-Champaign
      R. Gould, Emory University
      D. S. Gunderson*, Emory University
    • 9:30 a.m.
      On Erdos problem about bandwidth of graphs.
      Jianfang Wang, Academia Sinica, People's Republic of China
      Douglas B. West*, University of Illinois, Urbana-Champaign
      Bing Yang, Northwest Normal University, China
    • 10:00 a.m.
      Hadwiger's conjecture for K_6-free graphs.
      Robin Thomas*, Georgia Institute of Technology
    • 10:30 a.m.
      Eigenvalues and separators of graphs.
      Fan R.K Chung*, Bellcore, Morristown, New Jersey
  • Friday May 21, 1993, 8:30 a.m.-10:50 a.m.
    Special Session on Number Theory, I

    Room 204, DuSable Hall

    • 8:30 a.m.
      Transcendence and dependence via continued fractions.
      Edward B. Burger*, Williams College
    • 9:00 a.m.
      On the uniform distribution of Kronecker sequences.
      Jozsef Beck*, Rutgers University, New Brunswick
    • 9:30 a.m.
      When are elliptic curves almost periodic?
      Richard K. Guy*, University of Calgary
    • 10:00 a.m.
      The scarcity of squarefree binomial coefficients.
      Andrew J. Granville*, University of Georgia
      Olivier Ramar\'e, Institute for Advanced Study
    • 10:30 a.m.
      Polynomial exponential equations.
      Wolfgang Schmidt*, University of Colorado, Boulder
  • Friday May 21, 1993, 8:30 a.m.-10:50 a.m.
    Special Session on Advances In Linear Algebra: Theory, Computation, Application, I

    Room 433, DuSable Hall

    • 8:30 a.m.
      Regions in the complex plane containing the eigenvalues of a matrix.
      Richard A. Brualdi*, University of Wisconsin, Madison
      Stephen Mellendorf, University of Wisconsin, Madison
    • 9:00 a.m.
      The periodic Schur decomposition. Algorithms and applications.
      Paul VanDooren*, University of Illinois, Urbana-Champaign
    • 9:30 a.m.
      A parallel divide and conquer algorithm for the generalized real symmetric definite tridiagonal eigenproblem.
      Carlos F. Borges, Naval Postgraduate School
      William B. Gragg*, Naval Postgraduate School
    • 10:00 a.m.
      Advances in the numerical algebraic eigenproblem.
      Zhonggang Zeng*, Northern Illinois University
    • 10:30 a.m.
      Eigenvalue and inverse eigenvalue problems for Toeplitz matrices.
      Santosh Kumar Mohanty*, Northern Illinois University
      Gregory S. Ammar, Northern Illinois University
  • Friday May 21, 1993, 8:30 a.m.-10:20 a.m.
    Special Session on Function Theory, I

    Room 424, DuSable Hall

    • 8:30 a.m.
      Ahlfors alpha-regular curves and bilipschitz homogoneity.
      David A. Herron*, University of Cincinnati
      Manouchehr Ghamsari, Christopher Newport University
    • 9:00 a.m.
      Holder conditions on the reciprocal of the density of the hyperbolic metric.
      C. David Minda*, University of Cincinnati
    • 9:30 a.m.
      Chebyshev polynomials and discrete groups.
      F. W. Gehring*, University of Michigan, Ann Arbor and Univesity of Texas, Austin
      G. J. Martin, University of Auckland, New Zealand
    • 10:00 a.m.
      Proof of an extremal property of Chebyshev polynomials conjectured by P. Erdos.
      Alex Eremenko*, Purdue University, West Lafayette
  • Friday May 21, 1993, 11:00 a.m.-11:50 a.m.
    Invited Address

    Chaos in dynamical systems.
    Room 100, Cole Hall
    Clark Robinson*, Northwestern University
  • Friday May 21, 1993, 1:30 p.m.-2:20 p.m.
    Invited Address

    Trees, Hausdorff dimension, and probability.
    Room 100, Cole Hall
    Russell Lyons*, Indiana University, Bloomington
  • Friday May 21, 1993, 3:00 p.m.-4:20 p.m.
    Special Session on Analytic Number Theory, II

    Room 204, DuSable Hall

    • 3:00 p.m.
      How to improve a Rosser-Iwaniec sieve estimate.
      Roger Baker*, Brigham Young University
    • 3:30 p.m.
      Functions associated with sieves.
      H. Halberstam*, University of Illinois, Urbana-Champaign
      H. Diamond, University of Illinois, Urbana-Champaign
      H.-E. Richert, University of Ulm, Germany
    • 4:00 p.m.
      Functions associated with sieves, II.
      Harold G. Diamond*, University of Illinois, Urbana-Champaign
      H. Halberstam, University of Illinois, Urbana-Champaign
      H.-E. Richert, University of Ulm, Germany
  • Friday May 21, 1993, 3:00 p.m.-4:20 p.m.
    Special Session on Beautiful Graph Theory, I

    Room 320, DuSable Hall

    • 3:00 p.m.
      Digraph homomorphisms.
      Pavol Hell*, Simon Fraser University
    • 3:30 p.m.
      The number of edges in a maximal triangle-free graph.
      Curtiss Barefoot, New Mexico Institute of Technology
      Karen Casey, University of Colorado, Denver
      David Fisher, University of Colorado, Denver
      Kathryn Fraughnaugh*, University of Colorado, Denver
      Frank Harary, New Mexico State University, Las Cruces
    • 4:00 p.m.
      4-cockades and inverse sign patterns.
      Richard A. Brualdi*, University of Wisconsin, Madison
  • Friday May 21, 1993, 3:00 p.m.-5:20 p.m.
    Special Session on Advances In Linear Algebra: Theory, Computation, Application, II

    Room 433, DuSable Hall

    • 3:00 p.m.
      Numerical minimization of the Landau-deGennes free energy liquid crystals.
      Chuck Gartland*, Kent State University, Kent
      Tim Davis, Kent State University, Kent
      Peter Palffy-Muhoray, Southern Illinois University
    • 3:30 p.m.
      Interior-point methods for matrix linear programming problems.
      L. Faybusovich*, University of Notre Dame
    • 4:00 p.m.
      Distances and conditioning in computational control.
      Ralph Byers*, University of Kansas
    • 4:30 p.m.
      Feedback stabilization of a second-order system: A nonmodal approach.
      Biswa Nath Datta*, Northern Illinois University
      Fernando Rinc\'on, Northern Illinois University
    • 5:00 p.m.
      A cell structure for the set of autoregressive systems.
      Joachim Rosenthal*, University of Notre Dame
      Xiaochang Wang, Texas Tech University
  • Friday May 21, 1993, 3:00 p.m.-6:20 p.m.
    Special Session on Stochastic Processes, I

    Room 202A, DuSable Hall

    • 3:00 p.m.
      Branching processes in varying environments.
      Russell Lyons*, Indiana University, Bloomington
    • 3:30 p.m.
      Regular conditional probabilities and a linear birth-death predator-prey process.
      John Coffey*, Purdue University, Calumet Campus
    • 4:00 p.m.
      Limiting behavior of the connectivity function of oriented percolation with long range.
      Bao Nguyen*, Illinois Institute of Technology
      Wei-Shih Yang, Temple University
    • 4:30 p.m.
      Operator valued weight functions on the torus: Factorization and invariant subspaces.
      Ray Cheng*, University of Louisville
    • 5:00 p.m.
      Stochastic modeling of seismic records based on deterministic formulations.
      G. R. Dargahi-Noubary*, Bloomsburg University of Pennsylvania
    • 5:30 p.m.
      AR cyclostationary processes and period uncertainty.
      Peter J. Sherman*, Iowa State University
    • 6:00 p.m.
      Stochastic analysis for measuring income inequality and poverty.
      Ibrahim A. Ahmad*, Northern Illinois University
  • Friday May 21, 1993, 3:00 p.m.-4:50 p.m.
    Special Session on Function Theory, II

    Room 424, DuSable Hall

    • 3:00 p.m.
      A sharp norm estimate for the conjugate function.
      Matts Essen, Uppsala University, Sweden
      Daniel Shea*, University of Wisconsin, Madison
      Charles Stanton, California State University, San Bernardino
    • 3:30 p.m.
      Some local properties of the solutions of second-order differential equations.
      Jiuyi Cheng*, Virginia Polytechnic Institute and State University
      John Rossi, Virginia Polytechnic Institute and State University
    • 4:00 p.m.
      Computation of Nevanlinna error terms.
      Peter Hall*, University of Alabama, Tuscaloosa
    • 4:30 p.m.
      The best error terms of classical functions.
      Linda Sons, Northern Illinois University
      Zhuan Ye*, Northern Illinois University
  • Friday May 21, 1993, 3:00 p.m.-4:20 p.m.
    Special Session on Probabilistic Methods, I

    Room 204A, DuSable Hall

    • 3:00 p.m.
      Minimal absolute values of random trigonometric polynomials.
      A. M. Odlyzko*, AT&T Bell Laboratories, Murray Hill, New Jersey
    • 3:30 p.m.
      A normal law for matchings.
      Jeff Kahn*, Rutgers University, New Brunswick
    • 4:00 p.m.
      On random matchings in regular graphs.
      Jeff Kahn, Rutgers University, New Brunswick
      Jeong Han Kim*, Rutgers University, New Brunswick
  • Friday May 21, 1993, 3:00 p.m.-4:50 p.m.
    Special Session on Discrete Groups, I

    Room 426, DuSable Hall

    • 3:00 p.m.
      The elliptic order algorithm.
      Jane Gilman*, Rutgers University, Newark
    • 3:30 p.m.
      Discreteness conditions in PU(2,1), I.
      Robert Miner*, University of Oklahoma
      Ara Basmajian, University of Oklahoma
    • 4:00 p.m.
      Discreteness conditions in PU(2,1), II.
      Ara Basmajian*, University of Oklahoma
      Robert Miner, University of Oklahoma
    • 4:30 p.m.
      Strange action of cocompact 3-hyperbolic groups on H^5 and spaces fibering over closed hyperbolic 3-manifolds.
      Boris Apanasov*, University of Oklahoma
  • Friday May 21, 1993, 3:00 p.m.-5:50 p.m.
    Special Session on Mathematical Topics in Fluid Dynamics, I

    Room 432, DuSable Hall

    • 3:00 p.m.
      Fractal dimension of short trajectories from the non-Newtonian attractor.
      J. Necas*, Northern Illinois University
      J. Malek, Charles University, Czechoslovakia
    • 3:30 p.m.
      Singular nonlinear Schrodinger limits.
      Paul K. Newton*, University of Illinois, Urbana-Champaign
    • 4:00 p.m.
      Young measure-valued solutions for non-Newtonian incompressible fluids.
      H. Bellout*, Northern Illinois University
      F. Bloom, Northern Illinois University
      J. Necas, Northern Illinois University
    • 4:30 p.m.
      Advection of a passive scalar by dipolar vortex couple.
      Andrew J. Bernoff*, Northwestern University
      Joseph F. Lingevitch, Northwestern University
    • 5:00 p.m.
      Attractors of non-Newtonian and bipolar viscous fluids.
      Frederick Bloom*, Northern Illinois University
    • 5:30 p.m.
      Renormalisation group theory for similarity solutions of the second kind in porous medium flow and the propagation of turbulence.
      Nigel Goldenfeld*, University of Illinois, Urbana-Champaign
  • Friday May 21, 1993, 4:30 p.m.-5:50 p.m.
    Special Session on Combinatorics, III

    Room 204A, DuSable Hall

    • 4:30 p.m.
      Asymptotic enumeration of full graphs.
      D. J. Kleitman*, Massachusetts Institute of Technology
      F. Lasaga, Massachusetts Institute of Technology
      L. J. Cowen, Massachusetts Institute of Technology
    • 5:00 p.m.
      Graph generated union-closed families and the union-closed sets conjecture.
      Emanuel Knill*, Los Alamos National Laboratory
    • 5:30 p.m.
      Two-part shadows.
      G. O. H. Katona*, University of Illinois, Urbana-Champaign and Mathematical Institute of Hungarian Academy of Sciences, Hungary
  • Friday May 21, 1993, 4:30 p.m.-5:55 p.m.
    Session on Theory of Numbers

    Room 202C, DuSable Hall

    • 4:30 p.m.
      Power reciprocity of Jacobi sums.
      Charles Helou*, Pennsylvania State University, Delaware County Campus
    • 4:45 p.m.
      On Sidon sequences of even orders.
      Sheng Chen*, Southwest Texas State University
    • 5:00 p.m.
      Primes of the fifth cyclomatic field.
      Andrew J. Lazarus*, Berkeley, California
    • 5:15 p.m.
      Ramanujan's formulas for the coefficients in the expansions of certain modular forms.
      Paul Bialek*, University of Illinois, Urbana-Champaign
    • 5:30 p.m.
      A generalzied approach to the 3x+1 problem.
      Stephen M. Zemyan*, Pennsylvania State University, University Park
    • 5:45 p.m.
      Unified algorithm to find existent units in algebraic number fields of the form Q(w).
      Malvina Baica*, University of Wisconsin, Whitewater