Seminar Event Detail


Date:  Friday, October 16, 2015
Location:  4088 East Hall (3:10 PM to 4:00 PM)

Title:  Schubert polynomials and Kraskiewicz-Pragacz modules

Abstract:   Schubert polynomials, first introduced by Lascoux and Schutzenberger, are a family of polynomials describing the Schubert classes (and thus intersections of Schubert subvarieties) in flag varieties. They include Schur polynomials as special cases and consequently can be viewed as a generalization of Schur functions.

Schur functions are known to appear as characters of irreducible representations of GL_n. Generalising Schur functions to Schubert polynomials, Kraskiewicz and Pragacz introduced modules over the group of upper-triangular matrices whose characters are given by Schubert polynomials. I will talk about my results on Kraskiewicz-Pragacz modules, which reveal some (old and new) properties of Schubert polynomials. I would also like to talk about my recent study related to this material.


Speaker:  Masaki Watanabe
Institution:  U. Tokyo

Event Organizer:     


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