4 citations · 16 across the 19 of their papers we have counts for
27 papers
Principal specializations of Grothendieck polynomials
Haojun Bai, Feng Gu, Peter L. Guo +1
Motivated by Stanley's ``Schubert shenanigans'' paper, commendable attempts have been made to understand the principal specializations of Schubert or Grothendieck polynomials. In t…
Chern Classes of Open Projected Richardson Varieties and of Affine Schubert Cells
Neil J. Y. Fan, Peter L. Guo, Changjian Su +1
The open projected Richardson varieties form a stratification for the partial flag variety . We compare the Segre--MacPherson classes of open projected Richardson varieties wi…
A Pieri type formula for motivic Chern classes of Schubert cells in Grassmannians
Neil J. Y. Fan, Peter L. Guo, Changjian Su +1
We prove a Pieri formula for motivic Chern classes of Schubert cells in the equivariant K-theory of Grassmannians, which is described in terms of ribbon operators on partitions. Ou…
Bumpless pipe dreams meet Puzzles
Neil J. Y. Fan, Peter L. Guo, Rui Xiong
Knutson and Zinn-Justin recently found a puzzle rule for the expansion of the product of two double Grothendieck polynomials inde…
Pieri and Murnaghan--Nakayama type Rules for Chern classes of Schubert Cells
Neil J. Y. Fan, Peter L. Guo, Rui Xiong
We develop Pieri type as well as Murnaghan--Nakayama type formulas for equivariant Chern--Schwartz--MacPherson classes of Schubert cells in the classical flag variety. These formul…
Poincaré Polynomials of Odd Diagram Classes
Neil J. Y. Fan, Peter L. Guo
An odd diagram class is a set of permutations with the same odd diagram. Brenti, Carnevale and Tenner showed that each odd diagram class is an interval in the Bruhat order. They co…