Abstracts for the Seminar
 Discrete Geometry and Combinatorics
 Fall 2021

Speaker:  Yibo Gao, MIT
Title: The canonical bijection between pipe dreams and bumpless pipe dreams?
Time: 2:30 PM, Monday, Nov 22, 2021
Place: Zoom

Abstract: Pipe dreams and bumpless pipe dreams are two combinatorial objects that enumerate Schubert polynomials, and it has been an open problem to find a weight-preserving bijection between these two objects since bumpless pipe dreams were introduced by Lam, Lee and Shimozono. In this talk, we present such a bijection and establish its canonical nature by showing that it preserves Monk's rule. This is joint work with Daoji Huang.


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