Binomial regular sequences and free sums
Combinatorics
2013-02-05 v1 Commutative Algebra
Abstract
Recently several authors have proved results on Ehrhart series of free sums of rational polytopes. In this note we treat these results from an algebraic viewpoint. Instead of attacking combinatorial statements directly, we derive them from structural results on affine monoids and their algebras that allow conclusions for Hilbert and Ehrhart series. We characterize when a binomial regular sequence generates a prime ideal or even normality is preserved for the residue class ring.
Keywords
Cite
@article{arxiv.1302.0769,
title = {Binomial regular sequences and free sums},
author = {Winfried Bruns},
journal= {arXiv preprint arXiv:1302.0769},
year = {2013}
}