|Date: Friday, October 09, 2015
Location: 4088 East Hall (3:10 PM to 4:00 PM)
Title: Chromatic quasisymmetric functions
Abstract: In joint work with John Shareshian, we defined a refinement of Stanley's chromatic symmetric function of a graph. The refinement is a quasisymmetric function, and in fact is symmetric for a certain class of graphs. I will discuss our conjecture relating the chromatic quasisymmetric functions for this class to Hessenberg varieties, and its connection to the long standing e-positivity conjecture of Stanley and Stembridge. I will also present some results supporting our conjecture.
Speaker: Michelle Wachs
Institution: U. Miami
Event Organizer: Sergey Fomin