Finiteness dimensions and cofiniteness of local cohomology modules

A Vahidi, M Aghapournahr… - … Mountain Journal of …, 2021 - projecteuclid.org
Throughout R is a commutative Noetherian ring with nonzero identity, a is an ideal of R, and
n is a nonnegative integer. We write Spec (R)≥ n={p∈ Spec (R): dim (R/p)≥ n}, AssR (X)≥ …

Top local cohomology modules with respect to a pair of ideals

L Chu - Proceedings of the American Mathematical Society, 2011 - ams.org
Let $(R,{\mathfrak {m}}) $ be a commutative Noetherian local ring, and let $ I $ and $ J $ be
two proper ideals of $ R $. Let $ M $ be a non-zero finitely generated $ R-$ module. We …

Top local cohomology modules with specified attached primes

MT Dibaei, R Jafari - Algebra Colloquium, 2008 - World Scientific
Let (R, 𝔪) be a complete Noetherian local ring and let M be a finite R-module of positive
Krull dimension n. It is shown that any subset T of Assh R (M) can be expressed as the set of …

On the attached prime ideals of local cohomology modules

J A'zami - Communications in Algebra, 2013 - Taylor & Francis
On the Attached Prime Ideals of Local Cohomology Modules Page 1 Communications in
Algebra®, 41: 3648–3651, 2013 Copyright © Taylor & Francis Group, LLC ISSN: 0092-7872 …

On the injective dimension of -finite modules and holonomic -modules

M Dorreh - Illinois Journal of Mathematics, 2016 - projecteuclid.org
Let $ R $ be a regular local ring containing a field $ k $ of characteristic $ p $ and $ M $ be
an $\mathscr {F} $-finite module. In this paper, we study the injective dimension of $ M $. We …

Cofiniteness of local cohomology modules

K Bahmanpour, R Naghipour, M Sedghi - Algebra Colloquium, 2014 - World Scientific
Let M be a non-zero finitely generated module over a commutative Noetherian local ring (R,
𝔪). In this paper we consider when the local cohomology modules are finitely generated. It is …

Injective dimensions of local cohomology modules

A Vahidi - 대한수학회보, 2017 - kiss.kstudy.com
Assume that $ R $ is a commutative Noetherian ring with non-zero identity, $\mathfrak {a} $
is an ideal of $ R $, $ X $ is an $ R $--module, and $ t $ is a non-negative integer. In this …

On the cofiniteness of generalized local cohomology modules with respect to the class of modules in dimension less than a fixed integer

A Vahidi, M Papari-Zarei - Communications in Algebra, 2021 - Taylor & Francis
Let n and t be non-negative integers, R a commutative Noetherian ring with dim (R)≤ n+ 2,
a an ideal of R, M and N finite R-modules, and X an arbitrary R-module. We prove that if Ext …

On the cofiniteness of small-level generalized local cohomology modules

N Van Hoang, NT Ngoan - Bulletin of the Iranian Mathematical Society, 2020 - Springer
Let R be a commutative Noetherian ring and M, N be two finitely generated R-modules. In
this note, we prove the cofiniteness of generalized local cohomology modules H^ i _ I (M, N) …

[HTML][HTML] The finiteness dimension of local cohomology modules and its dual notion

M Asgharzadeh, K Divaani-Aazar, M Tousi - Journal of Pure and Applied …, 2009 - Elsevier
Let a be an ideal of a commutative Noetherian ring R and M a finitely generated R-module.
We explore the behavior of the two notions fa (M), the finiteness dimension of M with respect …