Important information regarding the recent AMS power outage.

The transformer that provides electricity to the AMS building in Providence went down on Sunday, April 22. The restoration of our email, website, AMS Bookstore and other systems is almost complete. We are currently running on a generator but overnight a new transformer should be hooked up and (fingers crossed) we should be fine by 8:00 (EDT) Wednesday morning. This issue has affected selected phones, which should be repaired by the end of today. No email was lost, although the accumulated messages are only just now being delivered so you should expect some delay.

Thanks for your patience.


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


American Mathematical Society