Combinatorics and Graph Theory

Anna Weigandt from University of Michigan will be speaking.

The presentation is titled "Transition on Grothendieck Polynomials."

This is a virtual meeting that takes place via Zoom.

The description of the event is as follows:
Using anti-diagonal Gröbner geometry, Knutson and Miller explained how Grothendieck polynomials arise as K-polynomials of matrix Schubert varieties. We will discuss how Lascoux's transition equations for Grothendieck polynomials can be realized geometrically through "almost anti-diagonal" Gröbner degeneration of matrix Schubert varieties. In particular, under this strange term order, Fulton's generators form a Gröbner basis. Our proof involves studying the lattice of alternating sign matrices.

Location:	Zoom link provided on Math Seminars page [map]
Price:	free
Sponsor:	Department of Mathematics
Contact:	Department of Mathematics (517) 353-0844
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