Lascoux polynomials and Gelfand-Zetlin polytopes

Abstract: Workshop Kirillov–75. Combinatorics and Bethe ansatz. November 26–27

I will speak about a new combinatorial description for stable Grothendieck polynomials and Lascoux polynomials in terms of cellular decompositions of Gelfand-Zetlin polytopes. This generalizes an earlier result on key polynomials (aka characters of Demazure modules) by Kiritchenko, Timorin and myself. The talk is based on a joint work with Ekaterina Presnova.

mathematical physicsdynamical systemsquantum algebrarepresentation theorysymplectic geometry

Audience: general audience

BIMSA Integrable Systems Seminar

Series comments: The aim is to bring together experts in integrable systems and related areas of theoretical and mathematical physics and mathematics. There will be research presentations and overview talks.

Audience: Graduate students and researchers interested in integrable systems and related mathematical structures, such as symplectic and Poisson geometry and representation theory.

The zoom link will be distributed by mail, so please join the mailing list if you are interested in attending the seminar.