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arXiv 1302.0769math.COmath.AC
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二项正则序列与自由和

Binomial regular sequences and free sums

Winfried Bruns

摘要:

最近几个作者证明了有理多面体自由和的Ehrhart级数的结果。本文从代数的观点来处理这些结果。而不是攻击组合报表直接,我们从仿射幺半群及其代数,允许希尔伯特和Ehrhart系列的结论的结构结果。我们刻画了当一个二项式正则序列生成一个素理想或甚至保持剩余类环的正规性。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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