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AMS Sectional Meeting Program by Special Session

Current as of Tuesday, April 12, 2005 15:09:06

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1993 Central Section Meeting
College Station, TX, October 22-23, 1993
Meeting #886

Associate secretaries:
Andy R Magid, AMS

Special Session on Algebraic Combinatorics

  • Friday October 22, 1993, 8:30 a.m.-10:50 a.m.
    Special Session on Algebraic Combinatorics, I

    Room 701, Rudder Tower

    • 8:30 a.m.
      Orthogonal arrays, covering designs and search designs.
      N. J. A. Sloane*, American Tel & Tel Bell Laboratories, Murray Hill, New Jersey
    • 9:00 a.m.
      Orbital schemes of B_3 (q) acting on 2-dimensional totally isotropic subspaces.
      J. Hemmeter*, Northeast Missouri State University
      V. A. Ustimenko, Kiev State University, Ukraine
      A. J. Woldar, Villanova University
    • 9:30 a.m.
      Rational functions and association scheme parameters.
      Douglas A. Leonard*, Auburn University, Auburn
    • 10:00 a.m.
      Extending Lander's table-- to nonabelian difference sets.
      Ken W. Smith*, Central Michigan University
    • 10:30 a.m.
      5-design with three intersection numbers.
      Y. J. Ionin, Central Michigan University
      M. S. Shrikhande*, Central Michigan University
  • Friday October 22, 1993, 3:00 p.m.-5:50 p.m.
    Special Session on Algebraic Combinatorics, II

    Room 701, Rudder Tower

    • 3:00 p.m.
      Graphs which are locally Grassmann.
      Richard M. Weiss*, Tufts University
    • 3:30 p.m.
      Cycle ideals for distance-regular graphs.
      Aaron D. Meyerowitz*, Florida Atlantic University
    • 4:00 p.m.
      Strongly regular square-free graphs.
      Benjamin V.C. Collins*, University of Wisconsin, Madison
    • 4:30 p.m.
      Spherical designs: Balancing a set of points on the surface of the sphere.
      Bela Bajnok*, Getturysburg College
    • 5:00 p.m.
      Askey-Wilson polynomials, kernel polynomials and association schemes.
      Laura Chihara*, Saint Olaf College
    • 5:30 p.m.
      Antipodal distance-regular graphs of diameter four and five.
      Aleksandar Juri\v si\'c*, University of Waterloo,
  • Saturday October 23, 1993, 8:00 a.m.-10:50 a.m.
    Special Session on Algebraic Combinatorics, III

    Room 701, Rudder Tower

    • 8:00 a.m.
      The P- and Q-polynomial schemes of thin type.
      Paul Terwilliger*, University of Wisconsin, Madison
    • 8:30 a.m.
      On a Clebsch Gordon problem.
      Fan R.K. Chung*, Bellcore,445 South Street, Morristown, New Jersey
      Shlomo Sternberg, Harvard University
    • 9:00 a.m.
      Sharp characters of quasigroups and association schemes.
      Kenneth W. Johnson*, Pennsylvania State University, Ogontz
    • 9:30 a.m.
      Kite-free P- and Q- polynomial association schemes.
      Chih-Wen Weng*, University of Wisconsin, Madison
    • 10:00 a.m.
      Quotients of association schemes.
      Chris D. Godsil, University of Waterloo
      William J. Martin*, University of Winnipeg
    • 10:30 a.m.
      Association schemes, superschemes, and permutation actions.
      Jonathan D.H. Smith*, Iowa State University
  • Saturday October 23, 1993, 3:00 p.m.-5:50 p.m.
    Special Session on Algebraic Combinatorics, IV

    Room 701, Rudder Tower

    • 3:00 p.m.
      Antipodal distance transitive covers of complete bipartite graphs.
      A. A. Ivanov, Institute for System Studies, Russia
      Robert A. Liebler*, Colorado State University
      Tim Pentilla, University of Western Australia, Australia
      Cheryl E. Praeger, University of Western Australia, Australia
    • 3:30 p.m.
      Krein conditions for coherent configurations.
      Sylvia A. Hobart*, University of Wyoming
    • 4:00 p.m.
      Quadratic forms in the construction of designs and near large sets of designs.
      Dwijendra Ray-Chaudhuri*, Ohio State University, Columbus
    • 4:30 p.m.
      Twice Q-polynomial distance-regular graphs.
      Garth A. Dickie*, University of Wisconsin, Madison
    • 5:00 p.m.
      Symmetric pseudocyclic association schemes.
      Sung Yell Song*, Iowa State College, Ames
    • 5:30 p.m.
      On a generalization of the q-Johnson association scheme.
      Gregory Hill*, University of North Texas