Lynch’s conjecture and annihilators of local cohomology modules

Let $R$ be a commutative Noetherian ring and $I$ be an ideal of $R$ with $\cd(I,R)=t\geq 1$. In this paper, we consider the Lynch's conjecture and we obtain a partial answer for this conjecture. More precisely, we show that if $M$ is an $R$-module such that $0\neq H^t_I(M)$ is $I$-cofinite, then $\Ann_RH^t_I(R)\subseteq \p$ for some minimal prime ideal $\p$ of $R$.

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Publication Details

Journal
Proceedings of the Romanian Academy Series A Mathematics Physics Technical Sciences Information Science
Published
2024-09-15
DOI
https://doi.org/10.59277/pra-ser.a.25.3.03
Primary Topic
Commutative Algebra and Its Applications
Type
article
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article

Lynch’s conjecture and annihilators of local cohomology modules

Kamal Bahmanpour, Jafar A’ZAMI, Mahnaz AMANALAHZADEH
Proceedings of the Romanian Academy Series A Mathematics Physics Technical Sciences Information Science
Commutative Algebra and Its Applications
article

Lynch’s conjecture and annihilators of local cohomology modules

Kamal Bahmanpour, Jafar A’ZAMI, Mahnaz AMANALAHZADEH
article en

Abstract

Let $R$ be a commutative Noetherian ring and $I$ be an ideal of $R$ with $\cd(I,R)=t\geq 1$. In this paper, we consider the Lynch's conjecture and we obtain a partial answer for this conjecture. More precisely, we show that if $M$ is an $R$-module such that $0\neq H^t_I(M)$ is $I$-cofinite, then $\Ann_RH^t_I(R)\subseteq \p$ for some minimal prime ideal $\p$ of $R$.

Proceedings of the Romanian Academy Series A Mathematics Physics Technical Sciences Information ScienceVol. 25(3)
University of Mohaghegh Ardabili (IR)
Openalex Percentile: Top 63%
Commutative Algebra and Its Applications
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