Journal of the
Korean Mathematical Society
JKMS

ISSN(Print) 0304-9914 ISSN(Online) 2234-3008

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J. Korean Math. Soc. 2010; 47(3): 633-643

Printed May 1, 2010

https://doi.org/10.4134/JKMS.2010.47.3.633

Copyright © The Korean Mathematical Society.

Local cohomology modules which are supported only at finitely many maximal ideals

Alireza Hajikarimi

Islamic Azad University

Abstract

Let $\frak a$ be an ideal of a commutative Noetherian ring $R$, $M$ a finitely generated $R$-module and $N$ a weakly Laskerian $R$-module. We show that if $N$ has finite dimension $d$, then ${\rm Ass}_R(H^d_{\frak a}(N))$ consists of finitely many maximal ideals of $R$. Also, we find the least integer $i$, such that $H^i_{\frak a}(M,N)$ is not consisting of finitely many maximal ideals of $R$.

Keywords: associated prime ideals, generalized local cohomology modules, weakly Artinian modules, weakly Laskerian modules

MSC numbers: 13D45, 13Exx

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