AMS Sectional Meeting Program by Special Session

Current as of Wednesday, April 13, 2005 08:32:23

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

Saturday April 2, 2005, 8:00 a.m.-10:50 a.m.
Special Session on Designs, Codes, and Geometries, I
Room 118, Purnell Hall
Organizers:
James A. Davis, University of Richmond
Keith E. Mellinger, University of Mary Washington
Qing Xiang, University of Delaware xiang@math.udel.edu
- 8:00 a.m.
  Some new algebraic approaches to nets and planes.
  G Eric Moorhouse*, University of Wyoming
  (1005-51-27)
- 8:30 a.m.
  Desarguesian nets without ovals.
  David A. Drake*, University of Florida
  (1005-51-125)
- 9:00 a.m.
  MDS Codes, Combinatorics and the Embedding Problem.
  Tim L Alderson*, University of New Brunswick, Saint John
  (1005-05-93)
- 9:30 a.m.
  LDPC Codes from Geometries.
  Jon-Lark Kim*, University of Nebraska at Lincoln
  Leo Storme, Ghent University, Belgium
  (1005-94-157)
- 10:00 a.m.
  The p-rank of the symplectic generalized quadrangles.
  David B Chandler, Academia Sinica, Taipei
  Peter K Sin*, University of Florida
  Qing Xiang, University of Delaware
  (1005-05-130)
- 10:30 a.m.
  On the intersection sizes of Hermitian unitals with other unitals in $\mathrm{PG}(2,q^2)$, and of Hermitian varieties with certain other sets in $\mathrm{PG}(n,q^2)$.
  David B. Chandler*, Academia Sinica
  (1005-05-95)

Saturday April 2, 2005, 3:00 p.m.-5:50 p.m.
Special Session on Designs, Codes, and Geometries, II
Room 118, Purnell Hall
Organizers:
James A. Davis, University of Richmond
Keith E. Mellinger, University of Mary Washington
Qing Xiang, University of Delaware xiang@math.udel.edu
- 3:00 p.m.
  Old and new applications of Lacunary Polynomials and R\'edei Polynomials in Finite Geometry.
  Aart Blokhuis*, Technical University Eindhoven
  (1005-05-129)
- 3:30 p.m.
  Groups generated by affine perspectivities.
  Chat Yin Ho*, U. of Florida
  (1005-51-86)
- 4:00 p.m.
  Information sets for generalized Reed-Muller codes and some bases of minimum-weight vectors.
  J. D. Key*, Clemson University
  T. P. McDonough, University of Wales, Aberystwyth
  V. C. Mavron, University of Wales, Aberystwyth
  (1005-05-22)
- 4:30 p.m.
  Partitions of difference sets and code synchronization.
  Vladimir D. Tonchev*, Michigan Technological University
  (1005-05-32)
- 5:00 p.m.
  Semiregular difference sets in nonabelian groups.
  Ken W Smith*, Central Michigan University
  (1005-05-154)
- 5:30 p.m.
  More Difference Sets in ${\rm GF}(2^m)$.
  J. F. Dillon*, National Security Agency
  (1005-05-187)

Sunday April 3, 2005, 8:00 a.m.-10:50 a.m.
Special Session on Designs, Codes, and Geometries, III
Room 118, Purnell Hall
Organizers:
James A. Davis, University of Richmond
Keith E. Mellinger, University of Mary Washington
Qing Xiang, University of Delaware xiang@math.udel.edu
- 8:00 a.m.
  Complex lines, difference sets and distance-regular graphs.
  Chris Godsil*, University of Waterloo
  (1005-05-132)
- 8:30 a.m.
  Symmetric Bush-type Hadamard matrices of order $4m^4$ exist for all odd $m$.
  M. E. Muzychuk*, Dept. of Comp. Science, Netanya Academic College, Israel
  Qing Xiang, University of Delaware
  (1005-05-29)
- 9:00 a.m.
  Generalized Conference Matrices of Index One.
  Yury J Ionin*, Central Michigan University
  (1005-05-119)
- 9:30 a.m.
  New Hadamard Matrices of Order $4p^2$ obtained from Jacobi Sums of Order 16.
  Ka Hin Leung*, National University of Singapore
  Siu Lun Ma, National University of Singapore
  Bernhard Schmidt, Universitat Augsburg
  (1005-05-116)
- 10:00 a.m.
  Designs in codes.
  Gary McGuire, National University of Ireland, Maynooth
  Harold N Ward*, University of Virginia
  (1005-94-109)
- 10:30 a.m.
  Rooted Forest Set Systems and Steiner Designs.
  Dijen K Ray-Chaudhuri, The Ohio State University
  Niranjan Balachandran*, The Ohio State University
  (1005-05-162)

Sunday April 3, 2005, 3:00 p.m.-6:20 p.m.
Special Session on Designs, Codes, and Geometries, IV
Room 118, Purnell Hall
Organizers:
James A. Davis, University of Richmond
Keith E. Mellinger, University of Mary Washington
Qing Xiang, University of Delaware xiang@math.udel.edu
- 3:00 p.m.
  A New Approach to Kerdock and Preparata Codes.
  A R Calderbank*, Department of Mathematics and Program in Applied and Computational Mathematics, Princeton University
  (1005-05-153)
- 3:30 p.m.
  Linear Block Codes.
  Keqin Feng*, Tsinghua University
  (1005-94-138)
- 4:00 p.m.
  On the Asymptotic Number of Inequivalent Binary Self-Dual Codes.
  Xiang-dong Hou*, University of South Florida
  (1005-05-36)
- 4:30 p.m.
  A Classification of Optimal Linear Codes.
  Anton Betten*, Colorado State University
  (1005-05-34)
- 5:00 p.m.
  On the non-existence of certain Optimal Codes over $F_8$.
  Chris M Jones*, St. Mary's College of California
  (1005-94-67)
- 5:30 p.m.
  A scheme-theoretical characterization of Moore geometries.
  Paul-Hermann Zieschang*, University of Texas at Brownsville
  (1005-05-33)
- 6:00 p.m.
  Siamese Combinatorial Objects: From 15 and 40 Points toward a More General Picture.
  Mikhail Klin, Ben-Gurion University of the Negev
  Sven Reichard, Freie Waldorfschule Greifswald
  Andrew Woldar*, Villanova University
  (1005-05-100)

Inquiries: meet@ams.org