Spring 2006

• Feb. 10~ Sunflowers, Kneser Graphs and Intersecting Families
  Geoff McKenna, George Washington University

• Feb. 17~ No talk. We recommend the department
  colloquium at 3:30.
  

• Feb. 24~ On the empty hexagon theorem
  Walter Morris
  

• Mar. 3~ Gale transforms
  Jim Lawrence

• Mar. 10~ More Gale Transforms: K_5 in R^3 (or S^3)
  Jim Lawrence

• Mar. 24~ No seminar. The Math Club is arranging a talk at 1:15, on the Mathematics of Juggling, by Allen Knutson, UCSD.

• Mar. 31~ The transfer of Krull dimension in fixed rings
  Jay Shapiro

• April 7~ Invariants of n-tuples of points on the Riemann sphere under linear fractional transformations
  Ben Howard, UMCP

• April 14~ On finite groups
  Edith Adan-Bante, U. of Southern Mississippi Gulf Coast

• May 4~ !!3PM!! The plus, minus game
  Klaus Fischer

Fall 2005

• Sept. 8 ~ Graphical condensation and its connection to plane partitions and MacMahon's formula
  Eric Kuo

• Sept. 15 ~ A classification of the minimal ring extensions of an integral domain
  Jay Shapiro

• Sept. 22 ~ Combinatorics of Viterbi Sequences
  Eric Kuo

• Sept. 29 ~ The simple stochastic game
  Walter Morris

• Oct. 6 ~ Extension of vertex maps to graph homomorphisms
  Geir Agnarsson

• Oct. 13 ~ Extension of vertex maps to graph homomorphisms, part II
  Geir Agnarsson

• Oct. 20 ~ No talk

• Oct. 27 ~ Discrete polymatroids
  Walter Morris

• Nov. 3 ~ No talk

• Nov. 10 ~ No talk

• Nov. 17 ~ Case Studies in Shape and Trajectory Optimization: Catenary Problem
  Igor Griva

• Dec. 1 ~ TBA
  Jim Lawrence

Spring 2005

• Feb. 18 ~ Isothetic Parallelotopes and the Binary Intersection Property
  Valeriu Soltan

• Mar. 4 ~
  Cluttered orderings for the complete bipartite graph and the complete tripartite graph
  Tomoko Adachi, Toho University, Japan

• Mar. 11 ~ Positive bases in Euclidean space
  Valeriu Soltan

• Mar. 25 ~
  On multipartite posets
  Geir Agnarsson On multipartite posets

• Apr. 1 ~ Algebra and graph reconstruction
  Geoff McKenna, George Washington University

• Apr. 8 ~ NO TALK - we recommend the Math colloquium

• Apr. 22 ~ Good hidden P-matrix sandwiches
  Makoto Namiki, Toho University and George Mason University

• Apr. 29 ~ Good hidden P-matrix sandwiches, part II
  Makoto Namiki, Toho University and George Mason University