AMS Meeting Program by Special Session

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International Joint Mathematics Meeting
Vancouver, British Columbia Canada, August 15-19, 1993
Meeting #883

Associate secretaries:
Lance W Small, AMS
Kenneth A Ross, MAA

AMS Special Session on Discrete Geometry and Convexity

  • Sunday August 15, 1993, 2:30 p.m.-5:50 p.m.
    AMS Special Session on Discrete Geometry and Convexity, I

    • 2:30 p.m.
      Kissing number.
      Andras Bezdek*, Hungarian Academy of Sciences, Hungary and Auburn University, Auburn
    • 3:00 p.m.
      Subdivisions of the product of two simplices and the Newton polytope of the product of all minors of an m x n matrix.
      Louis J. Billera*, Cornell University
    • 3:30 p.m.
      Convexly independent sets and points.
      T. Bisztriczky*, University of Calgary
    • 4:00 p.m.
      Some oriented 2-manifolds can not be embedded in the 2-skeleton of any convex 4-polytope.
      Amos Altshuler, Ben-Gurion University of the Negev, Israel
      Juergen Bokowski*, University of Darmstadt, Germany
      Peter Schuchert, University of Darmstadt, Germany
    • 4:30 p.m.
      Tomography of convex and star bodies.
      R. J. Gardner*, Western Washington University
      A. Vol\v ci\v c, University of Trieste, Italy
    • 5:00 p.m.
      Hexagonal circle packings in the plane.
      Burt Rodin*, University of California at San Diego, La Jolla
    • 5:30 p.m.
      Polyhedral surfaces.
      Ulrich Brehm*, Technical University of Berlin,
  • Monday August 16, 1993, 2:30 p.m.-4:50 p.m.
    AMS Special Session on Discrete Geometry and Convexity, II

    • 2:30 p.m.
      Projection functions on higher ranking Grassmannians.
      Paul Goodey*, University of Oklahoma
      Rolf Schneider, Ludwigs-Universitat, Germany
      Wolfgang Weil, Universitat Karlsruhe, Germany
    • 3:00 p.m.
      Convexity on affine Grassmann manifolds.
      Jacob E. Goodman*, City College, City University of New York
      Richard Pollack, New York University-Courant Institute
    • 3:30 p.m.
      On the complexity of computing mixed volumes.
      Martin Dyer, University of Leeds, United Kingdom
      Peter Gritzmann*, University of Trier, Germany
      Alexander Hufnagel, University of Trier, Germany
    • 4:00 p.m.
      Nonconvex polyhedra.
      Branko Grunbaum*, University of Washington
    • 4:30 p.m.
      Blichfeldt's density bound revisited.
      G\'abor Fejes T\'oth, Hungarian Academy of Sciences, Hungary
      Wlodzimierz Kuperberg*, Auburn University, Auburn
  • Tuesday August 17, 1993, 2:30 p.m.-5:50 p.m.
    AMS Special Session on Discrete Geometry and Convexity, III

    • 2:30 p.m.
      Stability results for circumscribed ellipsoids, spheres, and cylinders.
      H. Groemer*, University of Arizona
    • 3:00 p.m.
      Rhombi inscribed in simple closed curves.
      Mark J. Nielsen*, University of Idaho
    • 3:30 p.m.
      Geometry and combinatorics of sphere arrangements in Euclidean 3-space.
      Igor Rivin*, Princeton University
    • 4:00 p.m.
      Higher toroidal regular polytopes.
      Egon Schulte*, Northeastern University
    • 4:30 p.m.
      Free extensions of chiral polytopes.
      Egon Schulte, Northeastern University
      Asia Ivi\'c Weiss*, York University
    • 5:00 p.m.
      How to construct a ``cube''.
      Walter Whiteley*, York University
    • 5:30 p.m.
      A new approach to packing and covering.
      Jorg M. Wills*, University of Siegen, Germany
      U. Betke, University of Siegen, Germany
      M. Henk, University of Siegen, Germany

American Mathematical Society