AMS Sectional Meeting Program by Special Session

Current as of Saturday, October 13, 2007 00:36:29

Associate secretaries:
Susan J Friedlander, AMS susan@math.northwestern.edu

Friday October 5, 2007, 9:00 a.m.-10:50 a.m.
Special Session on Algebraic Coding Theory (in honor of Harold N. Ward's retirement), I
Room 1217, Lewis Center
Organizers:
Jay A. Wood, Western Michigan University jay.wood@wmich.edu
- 9:00 a.m.
  Additive Cyclic Codes over $F_4$.
  W. Cary Huffman*, Loyola University of Chicago
  (1030-94-148)
- 9:30 a.m.
  Formally self-dual additive codes over $\mathbb F_4$.
  Sunghyu Han, University of Louisville
  Jon-Lark Kim*, University of Louisville
  (1030-94-161)
- 10:00 a.m.
  Twisted Tensor Product Codes.
  Anton Betten*, Colorado State University
  (1030-05-63)
- 10:30 a.m.
  Constacyclic Codes over Galois Extension Rings of $\mathbb F_2+u\mathbb F_2$.
  Hai Q Dinh*, Department of Mathematical Sciences, Kent State University, 4314 Mahoning Avenue, Warren, OH 44483
  (1030-94-385)

Friday October 5, 2007, 2:30 p.m.-5:50 p.m.
Special Session on Algebraic Coding Theory (in honor of Harold N. Ward's retirement), II
Room 1217, Lewis Center
Organizers:
Jay A. Wood, Western Michigan University jay.wood@wmich.edu
- 2:30 p.m.
  New Negative Latin Square Type Partial Difference Sets in Nonelementary Abelian 2-groups and 3-groups.
  John B Polhill*, Bloomsburg University of Pennsylvania
  (1030-05-17)
- 3:00 p.m.
  Crossover of aperiodic autocorrelation functions for quaternary sequences.
  James A Davis*, University of Richmond
  Pohl Michael, University of Richmond
  (1030-05-304)
- 3:30 p.m.
  Loose ends.
  Harold N. Ward*, University of Virginia
  (1030-94-92)
- 4:00 p.m.
  Applications of Quadratic Forms in Coding Theory.
  Gary McGuire*, University College Dublin
  (1030-94-374)
- 4:30 p.m.
  Hartmann-Tzeng-type Bounds for Cyclic Codes.
  Nigel Boston*, University of Wisconsin, Madison
  (1030-14-258)
- 5:00 p.m.
  LDPC codes from voltage graphs.
  Christine A. Kelley, The Ohio State University
  Judy L. Walker*, University of Nebraska
  (1030-94-355)
- 5:30 p.m.
  On the dimensions of certain LDPC codes based on $q$-regular bipartite graphs.
  Peter Sin, University of Florida
  Qing Xiang*, University of Delaware
  (1030-94-171)

Saturday October 6, 2007, 9:00 a.m.-10:50 a.m.
Special Session on Algebraic Coding Theory (in honor of Harold N. Ward's retirement), III
Room 1217, Lewis Center
Organizers:
Jay A. Wood, Western Michigan University jay.wood@wmich.edu
- 9:00 a.m.
  Upper Bounds for the length of $s$-Extremal Codes over $\mathbb F_2$, $\mathbb F_4$, and $\mathbb F_2 + u\mathbb F_2$.
  Sunghyu Han*, Department of Mathematics, University of Louisville
  Jon-Lark Kim, Department of Mathematics, University of Louisville
  (1030-94-175)
- 9:30 a.m.
  Coding theory over finite principal ideal rings.
  Hamid Kulosman*, University of Louisville
  (1030-94-275)
- 10:00 a.m.
  Codes over rings.
  Steven T Dougherty*, University of Scranton
  (1030-94-108)
- 10:30 a.m.
  Character-theoretic proofs of equivalence theorems.
  Jay A. Wood*, Western Michigan University
  (1030-94-61)

Saturday October 6, 2007, 2:30 p.m.-5:20 p.m.
Special Session on Algebraic Coding Theory (in honor of Harold N. Ward's retirement), IV
Room 1217, Lewis Center
Organizers:
Jay A. Wood, Western Michigan University jay.wood@wmich.edu
- 2:30 p.m.
  Partial permutation decoding of Hermitian codes.
  Gretchen L Matthews*, Clemson University
  (1030-14-185)
- 3:00 p.m.
  Groebner Bases \& List Decoding BCH Codes.
  Philip R Busse*, University of Kentucky
  (1030-14-244)
- 3:30 p.m.
  Hadamard Matrices.
  Stephen London, University of Illinois at Chicago, Chicago, IL
  Vera Pless*, UIC, Chicago, IL
  (1030-05-123)
- 4:00 p.m.
  New results on self-orthogonal codes.
  Xiang-dong Hou*, University of South Florida
  (1030-94-319)
- 4:30 p.m.
  A MacWilliams Identity for Convolutional Codes.
  Heide Gluesing-Luerssen*, University of Kentucky
  (1030-94-68)
- 5:00 p.m.
  Cyclic convolutional codes and skew polynomial rings.
  Sergio R Lopez-Permouth*, Ohio University
  Steve Szabo, Ohio University
  (1030-94-337)

Inquiries: meet@ams.org