Seminar Event Detail


Combinatorics

Date:  Friday, October 14, 2016
Location:  4088 East Hall (3:10 PM to 4:00 PM)

Title:  Combinatorial description of the cohomology of the affine flag variety

Abstract:   The Fomin-Kirillov algebra is a quadratic algebra containing a certain commutative subalgebra isomorphic to the cohomology of the flag variety. In this talk, we generalize the theory of Fomin-Kirillov algebras to the affine type A case. As a byproduct, we obtain the affine Schubert polynomials, polynomial representatives of the Schubert classes in the cohomology of the affine flag variety, and the Murnaghan-Nakayama rule for the affine Schubert polynomials.

Files:


Speaker:  SeungJin Lee
Institution:  KIAS

Event Organizer:     

 

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