Maximal minors and linear powers

Details Maximal minors and linear powers Maximal minors and linear powers

2012-03-08

arxiv.org/abs/1203.1776v1

Mathematics

Commutative Algebra

Scientific paper

An ideal I in a polynomial ring S has linear powers if all the powers I^k of I have a linear free resolution. We show that the ideal of maximal minors of a sufficiently general matrix with linear entries has linear powers. The required genericity is expressed in terms of the heights of the ideals of lower order minors. In particular we prove that every rational normal scroll has linear powers.

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