English

Knutson ideals of generic matrices

Commutative Algebra 2021-01-19 v1

Abstract

In this paper we show that determinantal ideals of generic matrices are Knutson ideals. This fact leads to a useful result about Gr\"obner bases of certain sums of determinantal ideals. More specifically, given I=I1++IkI=I_1+\ldots+I_k a sum of ideals of minors on adjacent columns or rows, we prove that the union of the Gr\"obner bases of the IjI_j's is a Gr\"obner basis of II.

Keywords

Cite

@article{arxiv.2101.06496,
  title  = {Knutson ideals of generic matrices},
  author = {Lisa Seccia},
  journal= {arXiv preprint arXiv:2101.06496},
  year   = {2021}
}
R2 v1 2026-06-23T22:13:51.356Z