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AMS Sectional Meeting Program by Special Session

Current as of Tuesday, April 12, 2005 15:09:14

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1994 Southeastern Section Meeting
Richmond, VA, November 11-13, 1994
Meeting #896

Associate secretaries:
Robert J Daverman, AMS

Special Session on Codes and Designs

  • Friday November 11, 1994, 2:30 p.m.-5:50 p.m.
    Special Session on Codes and Designs, I

    Room 109, Jepson

    • 2:30 p.m.
      Some 2-group difference set designs and their codes.
      John F. Dillon*, National Security Agency
    • 3:00 p.m.
      Factors of Hadamard difference sets.
      Ken W. Smith*, Central Michigan University
    • 3:30 p.m.
      Quasi-cyclic codes built using finite field isomorphisms.
      Roberta Evans Sabin*, Loyola College
    • 4:00 p.m.
      Codes of $C(n,n,l)$ designs.
      Chester J. Salwach*, Lafayette College
    • 4:30 p.m.
      Difference sets modulo a prime.
      Robert L. McFarland*, University of Minnesota, Duluth
    • 5:00 p.m.
      (640, 72,8) McFarland difference sets.
      Jonathan Jedwab*, Hewlett-Packard Laboratory, United Kingdom
      James A. Davis, University of Richmond
    • 5:30 p.m.
      The 8x8 difference sets.
      Richard J. Turyn*, Newton, Massachusetts
  • Saturday November 12, 1994, 8:30 a.m.-10:50 a.m.
    Special Session on Codes and Designs, II

    Room 109, Jepson

    • 8:30 a.m.
      A family of divisible lexicographic codes.
      Harold N. Ward*, University of Virginia
    • 9:00 a.m.
      More on existence and uniqueness of binary linear codes.
      George T. Kennedy*, National Security Agency
    • 9:30 a.m.
      An updated survey of covering radius.
      Gerard D. Cohen, Syracuse University
      Simon N. Litsyn, Syracuse University
      H. F. Mattson, Jr.*, Syracuse University
      Antoine Lobstein, Syracuse University
    • 10:00 a.m.
      $Z_4$ quadratic residue codes.
      Vera S. Pless*, University of Illinois, Chicago
    • 10:30 a.m.
      Partition designs and two-weight codes.
      Paul F. Camion*, Institute National de Research en Information, France
  • Saturday November 12, 1994, 2:15 p.m.-4:35 p.m.
    Special Session on Codes and Designs, III

    Room 109, Jepson

    • 2:15 p.m.
      Codes over the integers modulo 4 and exponential sums.
      A. R. Calderbank*, AT&T Bell Laboratories, Murray Hill, New Jersey
    • 2:45 p.m.
      The antipode construction for sphere packings.
      John Horton Conway, Princeton University
      N. J. A. Sloane*, AT&T Bell Laboratories, Murray Hill, New Jersey
    • 3:15 p.m.
      On Lander's tables.
      Joel Iiams*, Colorado State University
    • 3:45 p.m.
      On finite flag transitive projective planes.
      Robert A. Liebler*, Colorado State University
    • 4:15 p.m.
      The automorphism groups of the generalized quadratic residue codes.
      W. Cary Huffman*, University of Chicago
  • Sunday November 13, 1994, 9:00 a.m.-11:50 a.m.
    Special Session on Codes and Designs, IV

    Room 109, Jepson

    • 9:00 a.m.
      On arc subgroups of a cyclic plane.
      Chat Yin Ho*, University of Florida
    • 9:30 a.m.
      Using the simplex code to construct relative difference sets in $2$-groups.
      James A. Davis, University of Richmond
      Surinder Sehgal*, Ohio State University, Columbus
    • 10:00 a.m.
      K-matrices revisited.
      James A. Davis*, University of Richmond
    • 10:30 a.m.
      Characters and codes over self-injective rings.
      Jay A. Wood*, Purdue University, Calumet Campus
    • 11:00 a.m.
      New necessary conditions for Abelian Hadamard difference sets.
      Dwijendra Ray-Chaudhuri, Ohio State University, Columbus
      Qing Xiang*, Ohio State University, Columbus
    • 11:30 a.m.
      Abelianization of difference sets.
      Dwijendra Ray-Chaudhuri*, Ohio State University, Columbus
      Xiaohong Wu, Ohio State University, Columbus