On the associated primes of local cohomology

H Dao, PH Quy - Nagoya Mathematical Journal, 2020 - cambridge.org
Let $ R $ be a commutative Noetherian ring of prime characteristic $ p $. In this paper, we
give a short proof using filter regular sequences that the set of associated prime ideals of …

The first non-isomorphic local cohomology modules with respect to their ideals

A Fathi - Journal of Algebra and Its Applications, 2018 - World Scientific
Let 𝔞, 𝔟 be ideals of a commutative Noetherian ring R and N be a finitely generated R-
module. By using filter regular sequences, we show that the infimum of integers i such that …

Associated primes of local cohomology modules

K Divaani-Aazar, A Mafi - Proceedings of the American Mathematical …, 2005 - ams.org
Let $\mathfrak {a} $ be an ideal of a commutative Noetherian ring $ R $ and $ M $ a finitely
generated $ R $-module. Let $ t $ be a natural integer. It is shown that there is a finite subset …

On the finiteness of associated primes of local cohomology modules

P Quy - Proceedings of the American Mathematical Society, 2010 - ams.org
Let $ R $ be a Noetherian ring, $\mathfrak a $ be an ideal of $ R $ and $ M $ be a finitely
generated $ R $-module. The aim of this paper is to show that if $ t $ is the least integer such …

A note on rings with finite local cohomology

S Goto, T Ogawa - Tokyo J. Math, 1983 - projecteuclid.org
Let $ A $ be a Noetherian local ring of dim $ A= n $ and $\mathfrak {m} $ the maximal ideal
of $ A $. Let $ H_ {u}^{i}(\cdot) $ stand for the $ i^{th} $ local cohomology functor relative to …

On certain rings of differentiable type and finiteness properties of local cohomology

L Núñez-Betancourt - Journal of Algebra, 2013 - Elsevier
Let R be a commutative F-algebra, where F is a field of characteristic 0, satisfying the
following conditions: R is equidimensional of dimension n, every residual field with respect …

Cofiniteness of generalized local cohomology modules

K Divaani-Aazar, R Sazeedeh - arXiv preprint math/0408163, 2004 - arxiv.org
Let $\fa $ denote an ideal of a commutative Noetherian ring $ R $ and $ M $ and $ N $ two
finitely generated $ R $-modules with $\pd M<\infty $. It is shown that if $\fa $ is principal or …

A property of local cohomology modules of polynomial rings

Y Zhang - Proceedings of the American Mathematical Society, 2011 - ams.org
Let $ R= k [x_1,\cdots, x_n] $ be a polynomial ring over a field $ k $ of characteristic $ p> 0, $
and let $ I=(f_1,\cdots, f_s) $ be an ideal of $ R. $ We prove that every associated prime $ P …

Local Cohomology at Monomial Ideals in R-Sequences

H Sabzrou, M Tousi - Communications in Algebra®, 2008 - Taylor & Francis
This article is a study of the local cohomology module in the case that R is a commutative
Noetherian ring containing a field and is a monomial ideal in a R-sequence. We will …

Cofiniteness over Noetherian complete local rings

K Bahmanpour - Communications in Algebra, 2019 - Taylor & Francis
In this article, we prove the following generalization of a result of Hartshorne: Let (S, n) be a
regular local ring of dimension 4. Assume that x, y, u, v is a regular system of parameters for …