2000•Proceedings of the American Mathematical SocietyOpen access

A finiteness result for associated primes of local cohomology modules

M. P. Brodmann, Ali Lashgari Faghani

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Abstract

We show that the first non-finitely generated local cohomology module $H^i_\mathfrak {a} (M)$ of a finitely generated module $M$ over a noetherian ring $R$ with respect to an ideal $\mathfrak {a}\subseteq R$ has only finitely many associated primes.

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What this paper is about

We show that the first non-finitely generated local cohomology module $H^i_\mathfrak {a} (M)$ of a finitely generated module $M$ over a noetherian ring $R$ with respect to an ideal $\mathfrak {a}\subseteq R$ has only finitely many associated primes.

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OpenAlex reports 128 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

We show that the first non-finitely generated local cohomology module $H^i_\mathfrak {a} (M)$ of a finitely generated module $M$ over a noetherian ring $R$ with respect to an ideal $\mathfrak {a}\subseteq R$ has only finitely many associated primes.

Key concepts: Local cohomology, Mathematics, Finitely-generated abelian group, Noetherian ring, Ideal (ethics), Noetherian, Pure mathematics, Local ring

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