English

Artinianness of local cohomology modules of ZD-modules

Commutative Algebra 2007-05-23 v1

Abstract

This paper centers around Artinianness of the local cohomology of ZDZD-modules. Let \fa\fa be an ideal of a commutative Noetherian ring RR. The notion of \fa\fa-relative Goldie dimension of an RR-module MM, as a generalization of that of Goldie dimension is presented. Let MM be a ZDZD-module such that \fa\fa-relative Goldie dimension of any quotient of MM is finite. It is shown that if dimR/\fa=0\dim R/\fa=0, then the local cohomology modules H\fai(M)H^i_{\fa}(M) are Artinian. Also, it is proved that if d=dimMd=\dim M is finite, then H\fad(M)H^d_{\fa}(M) is Artinian, for any ideal \fa\fa of RR . These results extend the previously known results concerning Artinianness of local cohomology of finitely generated modules.

Keywords

Cite

@article{arxiv.math/0412541,
  title  = {Artinianness of local cohomology modules of ZD-modules},
  author = {Kamran Divaani-Aazar and Mohammad Ali Esmkhani},
  journal= {arXiv preprint arXiv:math/0412541},
  year   = {2007}
}

Comments

8 pages, to appear in Communications in Algebra