The Combinatorics Seminar
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Tuesday, February 2 (3:00 in LN-2298, joint with Algebra Seminar)
Speaker: Matthias Beck (Temple Univ.)
Title: Counting lattice points by means of the residue theorem. I: Basic ideas
Tuesday, February 9 (3:00 in LN-2298, joint with Algebra Seminar)
Speaker: Matthias Beck (Temple Univ.)
Title: Counting lattice points by means of the residue theorem. II: Rational polytopes
Tuesday, March 30 (3:00 in LN-2298, joint with Algebra Seminar)
Speaker: Jim Belk (Binghamton Univ.)
Title: Switching of graphs with skew gains (a paper of Hage and Harju)
April is the coolest month for combinatorics: take a look.
Thursday, April 8
Speaker: Richard P. Stanley (MIT)
Seminar talk (2:50 in LN-2298, joint with Geometry/Topology Seminar): Volumes, mixed volumes, and lattice point enumerators of convex polytopes
Colloquium talk (4:30 in SW-323): Characteristic polynomials of hyperplane arrangements
Thursday, April 15
Speaker: Mark Watkins (Syracuse)
Colloquium talk (4:30 in SW-323): Edge-transitive maps on orientable surfaces
Tuesday, April 20 (3:00 in LN-2298, joint with Algebra Seminar)
Speaker: Jim Belk (Binghamton Univ.)
Title: Switching of graphs with skew gains (a paper of Hage and Harju). II
Thursday, April 22
Speaker: Neil Robertson (Ohio State)
Seminar talk (2:50 in LN-2298, joint with Geometry/Topology Seminar): Flexibility of polyhedral embeddings of graphs on a surface
Colloquium talk (4:30 in SW-323): The 4-colour theorem
Friday, April 23
Speaker: Neil Robertson (Ohio State)
Graph theory talk (1:10 in SW-305): Minor relations for directed graphs (an elementary talk)
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