|Date: Friday, November 15, 2013
Location: 3866 East Hall (4:10 PM to 5:00 PM)
Title: Twist and Matchings
Abstract: In this talk, which is a report on joint work with R. Marsh, I will explain how to evaluate Laurent expansions for twisted Plucker coordinates with respect to any seed of the Grassmannian arising from a special class of planar networks called Postnikov diagrams. I will show how these expansions, which are predicted using the theory of cluster algebras, can be calculated using perfect matchings within a bipartite graph dual to the Postnikov diagram.
Speaker: Jeanne Scott
Institution: Institute of Mathematical Sciences, Chennai