A combinatorial description of the totally nonnegative Grassmannian
Kelli Talaska
U.C. Berkeley
August 17, 2011
Non-Commutative Integrability, Paths and Quasi-determinants- Towards Non-Commutative Cluster Algebras
Philippe di Francesco
Saclay
August 15, 2011
Decision versus evaluation in algebraic complexity theory
Pascal Koiran
Ecole Normale Superieure de Lyon
August 5, 2011