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AMS Sectional Meeting Program by Special Session

Current as of Tuesday, April 12, 2005 15:09:40


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1997 Fall Eastern Sectional Meeting
Montreal, Quebec Canada, September 26-28, 1997
Meeting #924

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

Special Session on Combinatorial Geometry

  • Friday September 26, 1997, 2:00 p.m.-5:20 p.m.
    Special Session on Combinatorial Geometry, I

    Room 245, Z Wing, Pavillon Principal de l'Universit\'e de Montr\'eal
    Organizers:
    David Avis, McGill University avis@mutt.cs.mcgill.ca
    Jacob E. Goodman, City College, City University of New York jegcc@cunyvm.cuny.edu
    Richard Pollack, Courant Institute-New York University pollack@geometry.nyu.edu

    • 2:00 p.m.
      Five spheres in mutual contact
      Harold S. M. Coxeter*, University of Toronto
      (924-05-202)
    • 2:30 p.m.
      On regular vertices of the union of planar shapes
      Boris Aronov*, Brooklyn Poly
      (924-52-212)
    • 3:00 p.m.
      Sylvester's question: the probability that $n$ points are in convex position
      Imre B\'ar\'any*, Mathematical Institute of the Hungarian Academy of Sciences
      (924-52-260)
    • 3:30 p.m.
      The area and perimeter of an intersection of disks
      Marshall W. Bern*, Xerox PARC
      David Eppstein,
      (924-52-140)
    • 4:00 p.m.
      On 0ptimal Route Planning in the $3$-Dimensional Space
      Andr\'as Bezdek*, Auburn University, AL and Hungarian Academy of Sciences, Budapest
      (924-52-257)
    • 4:30 p.m.
      On the strong dodecahedral conjecture
      K\'aroly Bezdek*,
      (924-52-223)
    • 5:00 p.m.
      Symmetric Tensegrities--A Catalog
      Allen Back, Cornell University
      Robert Connelly*, Cornell University
      (924-52-178)
  • Saturday September 27, 1997, 8:30 a.m.-10:50 a.m.
    Special Session on Combinatorial Geometry, II

    Room 245, Z Wing, Pavillon Principal de l'Universit\'e de Montr\'eal
    Organizers:
    David Avis, McGill University avis@mutt.cs.mcgill.ca
    Jacob E. Goodman, City College, City University of New York jegcc@cunyvm.cuny.edu
    Richard Pollack, Courant Institute-New York University pollack@geometry.nyu.edu

    • 8:30 a.m.
      Rhombic isohedra and rectangle-faced isohedra
      Branko Gr\"unbaum*, University of Washington
      (924-52-48)
    • 9:00 a.m.
      The shape of a 3D point set
      Nina Amenta*, University of Texas at Austin
      Marshall Bern, Xerox Palo Alto Research Center
      (924-68-263)
    • 9:30 a.m.
      The multiplicity of small distances among points
      Gyorgy Csizmadia*,
      (924-52-64)
    • 10:00 a.m.
      Illumination and exposition of a convex $n$-body depending on its sharpness
      Boris V. Dekster*, Mount Allison University
      (924-52-09)
    • 10:30 a.m.
      The {\bf cd}-index of zonotopes and hyperplane arrangements
      Richard Ehrenborg*, Cornell University
      (924-05-179)
  • Saturday September 27, 1997, 2:30 p.m.-5:20 p.m.
    Special Session on Combinatorial Geometry, III

    Room 245, Z Wing, Pavillon Principal de l'Universit\'e de Montr\'eal
    Organizers:
    David Avis, McGill University avis@mutt.cs.mcgill.ca
    Jacob E. Goodman, City Collge, City University of New York jegcc@cunyvm.cuny.edu
    Richard Pollack, Courant Institute-New York University pollack@geometry.nyu.edu

    • 2:30 p.m.
      On Some Problems in Combinatorial Geometry
      Zolt\'an F\"uredi*, University of Illinois, Urbana, IL 61801
      (924-52-313)
    • 3:00 p.m.
      Packing and covering the cube with equal balls.
      Wlodzimierz Kuperberg*,
      (924-52-239)
    • 3:30 p.m.
      Pure Quasicrystals
      Jeffrey C. Lagarias*, AT&T Labs - Research
      (924-52-254)
    • 4:00 p.m.
      An application of combinatorial convexity to a problem of visual processing.
      Ted Lewis*, University of Alberta
      Balder Von Hohenbalken, University of Alberta
      (924-52-199)
    • 4:30 p.m.
      New applications of the Regularity Lemma
      Janos Pach*,
      (924-52-220)
    • 5:00 p.m.
      On the Visibility Graph of Convex Translates
      David Rappaport*, Queen's University
      (924-52-109)
  • Sunday September 28, 1997, 8:30 a.m.-10:50 a.m.
    Special Session on Combinatorial Geometry, IV

    Room 245, Z Wing, Pavillon Principal de l'Universit\'e de Montr\'eal
    Organizers:
    David Avis, McGill University avis@mutt.cs.mcgill.ca
    Jacob E. Goodman, City College, City University of New York jegcc@cunyvm.cuny.edu
    Richard Pollack, Courant Institute-New York University pollack@geometry.nyu.edu

    • 8:30 a.m.
      On the Mixing Rate of the Triangulation Walk.
      Michael Molloy, University of Toronto
      Bruce Reed, CNRS
      William Steiger*, Rutgers University
      (924-05-225)
    • 9:00 a.m.
      Subdivision of a Rectangle into Polygons of Equal Area
      Mario Szegedy*, ATT Labs-Research
      (924-52-249)
    • 9:30 a.m.
      The translative kissing number of tetrahedra is eighteen
      Istvan Talata*, Auburn University
      (924-52-234)
    • 10:00 a.m.
      A generalization of the Erd\H os-Szekeres theorem to convex sets
      J\'anos Pach,
      G\'eza T\'oth*,
      (924-52-137)
    • 10:30 a.m.
      Constrained Facility Location
      Ferran Hurtado, Universidad Politecnica de Catalunya
      Vera Sacristan, Universidad Politecnica de Catalunya
      Godfried Toussaint*, McGill University
      (924-68-106)
  • Sunday September 28, 1997, 2:30 p.m.-4:20 p.m.
    Special Session on Combinatorial Geometry, V

    Room 245, Z Wing, Pavillon Principal de l'Universit\'e de Montr\'eal
    Organizers:
    David Avis, McGill University avis@mutt.cs.mcgill.ca
    Jacob E. Goodman, City College, City University of New York jegcc@cunyvm.cuny.edu
    Richard Pollack, Courant Institute-New York University pollack@geometry.nyu.edu

    • 2:30 p.m.
      Flipping Edges of Triangulations in Parallel
      Ferran Hurtado, Universidad Politecnica de Catalunya
      Marc Noy, Universidad Politecnica de Catalunya
      Jorge Urrutia*, University of Ottawa
      (924-05-261)
    • 3:00 p.m.
      On constructing piecewise linear homeomorphisms, isomorphic triangulations and pairwise disjoint paths in the plane
      Rephael Wenger*, The Ohio State University
      (924-57-169)
    • 3:30 p.m.
      Independence of Geometric Constraints for CAD
      Walter J. Whiteley*, York University
      (924-52-105)
    • 4:00 p.m.
      On Configurations of Moving Points
      Naixun Pei, McGill University
      Sue Whitesides*, McGill University
      (924-68-311)
Inquiries:  meet@ams.org