On some local cohomology modules

Gennady Lyubeznik

doi:10.1016/j.aim.2007.01.004

On some local cohomology modules

Gennady Lyubeznik

School of Mathematics

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

We give an explicit description of a certain high order local cohomology module with support in an ideal in terms of some combinatorial information about the minimal primes of the ideal. As a consequence, we give a combinatorial necessary and sufficient condition for an upper bound on the cohomological dimension of the ring with support in the ideal.

Original language	English (US)
Pages (from-to)	621-643
Number of pages	23
Journal	Advances in Mathematics
Volume	213
Issue number	2
DOIs	https://doi.org/10.1016/j.aim.2007.01.004
State	Published - Aug 20 2007

Keywords

Cohomological dimension
Local cohomology

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10.1016/j.aim.2007.01.004

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abstract = "We give an explicit description of a certain high order local cohomology module with support in an ideal in terms of some combinatorial information about the minimal primes of the ideal. As a consequence, we give a combinatorial necessary and sufficient condition for an upper bound on the cohomological dimension of the ring with support in the ideal.",

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KW - Cohomological dimension

KW - Local cohomology

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On some local cohomology modules

Abstract

Keywords

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