English

Ideals generated by corner-interval minors

Commutative Algebra 2025-06-12 v1 Combinatorics

Abstract

In this article, we study binomial ideals generated by an arbitrary collection of corner-interval 22-minors of a generic matrix. We determine the minimal prime ideals of such ideals and characterize their radicality in the special case of corner minors. Moreover, we discuss connectivity properties of contingency tables in algebraic statistics. We compute the Hilbert-Poincar\'e polynomial of the ideal generated by the set of all corner-interval minors and we derive the formula for the regularity in the case of corner minors.

Keywords

Cite

@article{arxiv.2506.09618,
  title  = {Ideals generated by corner-interval minors},
  author = {Marie Amalore Nambi},
  journal= {arXiv preprint arXiv:2506.09618},
  year   = {2025}
}

Comments

18 pages, comments are welcome!

R2 v1 2026-07-01T03:11:00.902Z