Discrete Geometry and Combinatorics Seminar
Spring 2013
Mondays 2:30 PM to 3:30 in Malott 206 

Topics of interest are discrete geometry and algebraic combinatorics, including the geometry and combinatorics of polyhedra, enumeration in partially ordered sets and triangulations, matroid theory, the theory of rigid and flexible frameworks, tilings, packing, and graph theory.

This seminar is run jointly by Louis Billera (billera@math.cornell.edu), Bob Connelly (connelly@math.cornell.edu) and Ed Swartz (ebs@math.cornell.edu). Please feel free to suggest speakers or volunteer to speak.

For the schedule of previous talks in this seminar: previous years, Fall 2012.


Schedule


1/28/2013 Louis Billera, Cornell Confessions of an Erstwhile Game Theorist
2/11/2013 Amanda Ruiz, Binghamton University Realizations of phased matroids
2/25/2013 Louis Billera, Cornell Balanced and Unbalanced Collections
Tuesday, 03/12/2013
1:30-2:30, Malott 224		 Art Benjamin, Harvey Mudd College Combinatorial Trigonometry, Alternating Sums,
and a Method to DIE For
3/18/2013 Spring Break  
3/25/2013 Laura Anderson, Binghamton University The phased matroid Grassmannian
4/1/2013 Anna Bertiger, Cornell An Equivariant Version of the Rim Hook Rule
4/8/2013 Allen Knutson, Cornell Interval positroid varieties, Schubert calculus, and pipe dreams
4/15/2013 Karim Adiprasito, Free University, Berlin Minimal CW models for complements of 2-arrangements
4/22/2013 Michelle Wachs, University of Miami Eulerian numbers, chromatic quasisymmetric functions
and Hessenberg varieties
4/29/2013

Also Tuesday, 04/30
1:30-2:30, MLT 224
(Topology Seminar)

 Federico Ardila, San Francisco State University Arithmetic Tutte polynomials of classical Coxeter groups

The combinatorics of CAT(0) cubical complexes and robotic motion planning


Link to the Math Department.

Last updated: April 21, 2013