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AMS Sectional Meeting Program by Special Session

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


Program  |  Deadlines  |  Inquiries:  meet@ams.org

1994 Eastern Spring Sectional Meeting
Brooklyn, NY, April 8-10, 1994
Meeting #892

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

Special Session on Discrete Geometry

  • Friday April 8, 1994, 1:00 p.m.-3:50 p.m.
    Special Session on Discrete Geometry, I

    Room 705, Rogers Hall

    • 1:00 p.m.
      A survey of problems concerning distance sums on spheres.
      Ralph Alexander*, University of Illinois, Urbana-Champaign
      (892-52-203)
    • 1:30 p.m.
      Realizations of weighted graphs in Euclidean spaces.
      Alexander I. Barvinok*, Cornell University, Ithaca
      (892-52-43)
    • 2:00 p.m.
      Finite and uniform stability of sphere packings and coverings.
      Andr\'as Bezdek*, Auburn University, Auburn
      Karoly Bezdek, Eotvos Lorand University, Hungary
      Robert Connelly, Cornell University, Ithaca
      (892-52-143)
    • 2:30 p.m.
      Light-sources that illuminate the boundary points all but the vertices of a convex polytope.
      Karoly Bezdek*, Eotvos Lorand University, Hungary
      (892-52-242)
    • 3:00 p.m.
      Toric h-vectors of Shellable cubical complexes.
      Clara S. Chan*, Institute for Defense Analyses
      (892-52-227)
    • 3:30 p.m.
      On convex projections of polygons.
      Robert Connelly*, Cornell University, Ithaca
      Beat Jaggi, University of Bern, Switzerland
      (892-52-123)
  • Saturday April 9, 1994, 9:00 a.m.-10:50 a.m.
    Special Session on Discrete Geometry, II

    Room 202, Rogers Hall

    • 9:00 a.m.
      Symmetrical combinations of 3 or 4 hollow triangles.
      H. S. M. Coxeter*, University of Toronto
      (892-51-33)
    • 9:30 a.m.
      Geometry in the computer construction of school timetables.
      J. Csima*, McMaster University
      (892-52-167)
    • 10:00 a.m.
      Are lattice arrangements optimal?
      G\'abor Fejes-T\'oth*, Hungarian Academy of Science, Hungary
      (892-52-215)
    • 10:30 a.m.
      On the best constant for the Besicovitch covering theorem.
      Zoltan F\"uredi*, University of Illinois, Urbana-Champaign
      (892-28-240)
  • Saturday April 9, 1994, 2:30 p.m.-5:50 p.m.
    Special Session on Discrete Geometry, III

    Room 202, Rogers Hall

    • 2:30 p.m.
      Knotted lattice-like space fillers.
      Wlodzimierz Kuperberg*, Auburn University, Auburn
      (892-52-117)
    • 3:00 p.m.
      Three problems on four-dimensional polytopes.
      G\"unter M. Ziegler*, Konrad-Zuse ZIB, Germany
      (892-52-55)
    • 3:30 p.m.
      Gale transforms and triangulations.
      Carl Lee*, University of Kentucky
      (892-52-202)
    • 4:00 p.m.
      Embedding a polytope in a lattice.
      Hiroshi Maehara*, Ryuyku University, Japan
      (892-52-52)
    • 4:30 p.m.
      Oriented matroids and the birational geometry of toric varieties.
      Robert Morelli*, Institute for Advanced Study
      (892-52-257)
    • 5:00 p.m.
      Voronoi inclusion-exclusion identities and inequalities.
      Daniel Q. Naiman*, Johns Hopkins University
      Henry P. Wynn, City University, London
      (892-55-198)
    • 5:30 p.m.
      Bounding the number of geometric permutations induced by k-transversals.
      Jacob E. Goodman, City College, City University of New York
      Richard Pollack*, Courant Institute of Mathematical Sciences, New York University
      Rephael Wenger, Ohio State University, Columbus
      (892-52-22)
  • Sunday April 10, 1994, 9:00 a.m.-10:50 a.m.
    Special Session on Discrete Geometry, IV

    Room 202, Rogers Hall

    • 9:00 a.m.
      Geometry of sphere packing in bold E^3.
      Igor Rivin*, Institute for Advanced Study
      (892-52-241)
    • 9:30 a.m.
      Separating translates in the plane: Combinatorial bounds.
      Jurek Czyzowicz, University of Quebec at Hull
      Hazel Everett, University of Quebec at Montreal
      Jean-Marc Robert*, University of Quebec at Chicoutimi
      (892-52-122)
    • 10:00 a.m.
      Chirality in abstract polytopes.
      Egon Schulte*, Northeastern University
      (892-51-135)
    • 10:30 a.m.
      The tightest packings (or clusters) of N balls.
      N. J. A. Sloane*, AT&T Bell Laboratories, Murray Hill, New Jersey
      (892-51-98)
  • Sunday April 10, 1994, 2:30 p.m.-5:50 p.m.
    Special Session on Discrete Geometry, V

    Room 202, Rogers Hall

    • 2:30 p.m.
      Different distances.
      Endre Szemer\'edi*, Rutgers University, New Brunswick
      (892-51-230)
    • 3:00 p.m.
      Polytopes related to the Picard group.
      B. Monson, University of New Brunswick
      Asia Ivi\'c Weiss*, York University
      (892-52-58)
    • 3:30 p.m.
      On connected components of convex sets of lines in R^3.
      Jacob E. Goodman, City College, City University of New York
      Richard Pollack, Courant Institute of Mathematical Sciences, New York University
      Rephael Wenger*, Ohio State University, Columbus
      (892-52-36)
    • 4:00 p.m.
      A new approach to packing and covering.
      Ulrich Betke, University of Siegen, Germany
      Martin Henke, University of Siegen, Germany
      J\"org M. Wills*, University of Siegen, Germany
      (892-52-35)
    • 4:30 p.m.
      Polytopes that fill R^n and scissors congruences.
      Jeffrey C. Lagarias*, AT&T Bell Laboratories, Murray Hill, New Jersey
      David Moews, University of California, Berkeley
      (892-52-13)
    • 5:00 p.m.
      Foundations of the polytope algebra.
      Peter McMullen*, University College London, United Kingdom
      (892-52-210)
    • 5:30 p.m.
      Parallel drawings and dimensioning plane diagrams in CAD.
      Walter Whiteley*, York University
      John Owen, D-CUBED Limited, Cambridge, England
      (892-52-59)
Inquiries:  meet@ams.org


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