Graded Cohen-Macaulay domains and lattice polytopes with short h-vector

Graded Cohen-Macaulay domains and lattice polytopes with short h-vector
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分级 Cohen-Macaulay 域和具有短 h 向量的晶格多胞体

DOI:
10.1007/s00454-021-00342-z
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发表时间:
2022
影响因子:
0.8
通讯作者:
Kohji Yanagawa
Kohji Yanagawa
中科院分区:
数学3区
文献类型:
--
作者:
Lukas Katthaen;Kohji Yanagawa

文献摘要

相似文献

设P是一个具有-向量的格多面体。本文证明了如果,则Ehrhart环至多是a-代数的度生成环。特别地,如果和,则P是IDP。为了证明这一点,我们给出了代数闭域上半标准分次Cohen-Macaulay域的相应命题。
LetPbe a lattice polytope with the-vector. In this note we show that if, then the Ehrhart ringis generated in degrees at mostas a-algebra. In particular, ifand, thenPis IDP. To see this, we show the corresponding statement for semi-standard graded Cohen–Macaulay domains over algebraically closed fields.