Algebraic Geometry Seminar, UC Davis
Thomas Lam, University of Michigan
Positroids, clusters, and Catalan numbers
Organizer's time: 2021-02-23 11:00 America/Los_Angeles
Duration: 1 hour
Positroid varieties are subvarieties of the Grassmannian obtained by intersecting cyclic rotations of Schubert varieties. I will talk about a recent result relating the (singular) cohomology of positroid varieties and to q,t-Catalan theory. I will also explain some features of the cohomology of the more general class of cluster varieties.
Submitted by: Eugene Gorsky