|Date: Friday, March 25, 2016
Location: 4088 East Hall (3:10 PM to 4:00 PM)
Title: Coxeter-biCatalan Combinatorics
Abstract: We pose counting problems related to the various settings for Coxeter-Catalan combinatorics (noncrossing, nonnesting, clusters, Cambrian). Each problem involves in some sense a ``doubling'' of a corresponding problem in Coxeter-Catalan combinatorics. We show that the problems all have the same answer, and we call the common solution to these problems for a given finite Coxeter group W the W-biCatalan number.
This work is joint with my advisor Nathan Reading.
Speaker: Emily Barnard