Alex Fink

activity

20072023

most citedValuative invariants for polymatroids

64 citations · 178 across the 18 of their papers we have counts for

collaborators

Showing 2015Show all

2 papers · 1 filter

math.AG2015★ 10 cited

Matrix Schubert varieties and Gaussian conditional independence models

Alex Fink, Jenna Rajchgot, Seth Sullivant

Matrix Schubert varieties are certain varieties in the affine space of square matrices which are determined by specifying rank conditions on submatrices. We study these varieties f…

math.AG2015★ 10 cited

Equivariant Chow classes of matrix orbit closures

Andrew Berget, Alex Fink

Let $G$ be the product $G L_{r} (C) \times (C^{\times})^{n}$ . We show that the $G$ -equivariant Chow class of a $G$ orbit closure in the space of $r$ -by- $n$ matrices is determined by a matr…