Combinatorial characterizations of generalized Cohen-Macaulay monomial ideals

Combinatorial characterizations of generalized Cohen-Macaulay monomial ideals
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发表时间:
2005-03
期刊:
arXiv: Commutative Algebra
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通讯作者:
Yukihide Takayama
Yukihide Takayama
中科院分区:
其他
文献类型:
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作者:
Yukihide Takayama

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我们给出了一个推广的Hochster公式的局部上同调的平方自由单项式理想的单项式理想,这不一定是平方自由的。利用这个公式,我们给出了广义Cohen-Macaulay单项式理想的组合特征。我们还给出了广义Hochster公式的其他应用。
We give a generalization of Hochster's formula for local cohomologies of square-free monomial ideals to monomial ideals, which are not necessarily square-free. Using this formula, we give combinatorial characterizations of generalized Cohen-Macaulay monomial ideals. We also give other applications of the generalized Hochster's formula.