The UC Berkeley Combinatorics Seminar, Spring 2006
Mondays 5-6pm, 891 Evans (unless otherwise noted)
Followed by drinks and/or dinner in town




date speaker affiliation title (click for an abstract)
January 16
no seminar (MLK Day)


January 23
Dominic Hughes
Stanford
Proofs are Graph Homomorphisms
January 30
Edwin O'Shea
U Washington - Seattle
Total dual integrality and perfect graphs
February 6
Benjamin Howard
U Maryland
The Projective Invariants of Ordered Points on the Line
February 13
Federico Ardila
SFSU
Flag arrangements and tilings of simplices
February 20
no seminar (Presidents' Day)


Thursday, February 23
5-6pm, 891 Evans
Sergi Elizalde
Dartmouth
A bijection between 2-triangulations and
pairs of non-crossing Dyck paths
February 27
Joel Kamnitzer AIM / MIT
Crystal structure on the set of Mirkovic-Vilonen polytopes
Monday, March 6
3-4pm, 60 Evans
Special Seminar on the History of Math and Art, by Daniel Biss
March 6
Daniel Biss
CMI / U Chicago
Annihilators in Cayley-Dickson algebras
March 13
Tyrrell McAllister UC Davis Stretched Kostka coefficients and a conjectured generalization of the saturation theorem
March 20
Tom Braden
U Mass
Hypertoric varieties and Gale duality
of hyperplane arrangements
March 27
no seminar (Spring Break)


April 3
Bernd Sturmfels
UC Berkeley
How to subdivide the 4-cube
April 10
Luca Trevisan
UC Berkeley
Gowers Uniformity, Influence of Variables, and PCPs
Saturday, April 15,
Google
Bay Area Discrete Math Day
April 17
Matthias Beck
SFSU
Irrational proofs for theorems of Stanley and Brion
April 24
Christophe Hohlweg
Fields Institute, U Toronto
Realizations of the associahedron and cyclohedron
Sat-Sun, April 29-30
SFSU
AMS Sectional Meeting, including Special Sessions on:
May 1, 10:30am-12:30pm
and 1:30-3pm
in 959 Evans,
5-6pm in 891 Evans

Special Working Seminar on Secant Varieties of Segre Varieties, by J. M. Landsberg


May 8
Sam Payne
U Michigan
Branched covers of fans
May 15
no seminar (exams)



Seminar co-organizers: Lauren Williams and Kevin Woods

Past Seminars: Fall 2005, Academic year 2004-2005

Other seminars that may be of interest:
EECS Theory Seminar, Mondays 4-5 pm.
Computational Biology Seminar, Wednesdays 3-4 pm.
Representation Theory, Geometry and Combinatorics Joint Seminar, Wednesdays 4-6pm.
Discrete Mathematics Seminar at UC Davis, Thursdays 12-1pm.
Algebra-Geometry-Combinatorics Seminar at SFSU, Fridays 3-4pm.