Colleen Robichaux

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math.CO2023

Castelnuovo-Mumford regularity for $321$ -avoiding Kazhdan-Lusztig varieties

Colleen Robichaux

We prove the Castelnuovo--Mumford regularity of 321-avoiding Kazhdan--Lusztig varieties can be computed combinatorially in terms of $K$ -theoretic skew excited Young diagrams. We pr…

math.CO2019

Degrees of symmetric Grothendieck polynomials and Castelnuovo-Mumford regularity

Jenna Rajchgot, Yi Ren, Colleen Robichaux +2

We give an explicit formula for the degree of the Grothendieck polynomial of a Grassmannian permutation and a closely related formula for the Castelnuovo-Mumford regularity of the…

Castelnuovo-Mumford regularity for 321-avoiding Kazhdan-Lusztig varieties

Degrees of symmetric Grothendieck polynomials and Castelnuovo-Mumford regularity

Castelnuovo-Mumford regularity for $321$ -avoiding Kazhdan-Lusztig varieties