Ideals generated by corner-interval minors (2506.09618v1)

Abstract: In this article, we study binomial ideals generated by an arbitrary collection of corner-interval $2$-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.