Results 21 to 30 of about 6,262,439 (184)

UPPER BOUNDS FOR FINITENESS OF GENERALIZED LOCAL COHOMOLOGY MODULES [PDF]

open access: yesJournal of Algebraic Systems, 2013
Let $R$ be a commutative Noetherian ring with non-zero identity and $fa$ an ideal of $R$. Let $M$ be a finite $R$--module of finite projective dimension and $N$ an arbitrary finite $R$--module.
Moharram Aghapournahr
doaj   +1 more source

On Finiteness Properties of Local Cohomology Modules [PDF]

open access: yes, 2022
openThis thesis has its foundations in the fields of homological and commutative algebra, in particular in the study of local cohomology. Local cohomology was introduced by Grothendieck in the early 1960s, in part to answer a conjecture of Pierre Samuel ...
SABATINI, ENRICO
core  

One the P-Adic Local Invariant Cycle Theorem [PDF]

open access: yes, 2012
The aim of this paper is to consider the $p$-adic local invariant cycle theorem in the mixed characteristic case. In the first part of the paper, via case-by-case discussion, we construct the $p$-adic specialization map, and then write out the ...
Wu, Yi-Tao
core   +1 more source

On Vanishing of Generalized Local Cohomology Modules [PDF]

open access: yesAlgebra Colloquium, 2005
Let [Formula: see text] denote an ideal of a d-dimensional Gorenstein local ring R, and M and N two finitely generated R-modules with pd M < ∞. It is shown that [Formula: see text] if and only if [Formula: see text] for all [Formula: see text].
Divaani-Aazar, K.   +2 more
openaire   +3 more sources

Some results on top local cohomology modules with respect to a pair of ideals [PDF]

open access: yesMathematica Bohemica, 2020
Let $I$ and $J$ be ideals of a Noetherian local ring $(R,\mathfrak m)$ and let $M$ be a nonzero finitely generated $R$-module. We study the relation between the vanishing of $H_{I,J}^{\dim M}(M)$ and the comparison of certain ideal topologies.
Saeed Jahandoust, Reza Naghipour
doaj   +1 more source

Cominimaxness of local cohomology modules [PDF]

open access: yesCzechoslovak Mathematical Journal, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Uniqueness of A-infinity structures and Hochschild cohomology [PDF]

open access: yes, 2011
Working over a commutative ground ring, we establish a Hochschild cohomology criterion for uniqueness of derived A-infinity algebra structures in the sense of Sagave.
Whitehouse, Sarah   +5 more
core   +1 more source

Co-Cohen-Macaulay Modules and Local Cohomology

open access: yesJournal of Mathematics, 2013
Let be a commutative Noetherian local ring and let be a finitely generated -module of dimension . Then the following statements hold: (a) if width for all with , then is co-Cohen-Macaulay of Noetherian dimension ; (b) if is an unmixed -module and ...
Hero Saremi, Amir Mafi
doaj   +1 more source

$S$-depth on $ZD$-modules and local cohomology [PDF]

open access: yes, 2021
summary:Let $R$ be a Noetherian ring, and $I$ and $J$ be two ideals of $R$. Let $S$ be a Serre subcategory of the category of $R$-modules satisfying the condition $C_I$ and $M$ be a $ZD$-module.
Lotfi Parsa, Morteza
core   +1 more source

Upper bounds and attached primes of top local cohomology modules defined by a pair of ideals [PDF]

open access: yesJournal of Hyperstructures, 2014
Throughout R is a Noetherian local ring. In this paper we study cohomological dimension of an R-module M with respect to a pair of ideals and some of its relations with the attached prime ideals of M and the cohomological dimension of M with respect to ...
Sh. Payrovi, S. Karim
doaj   +1 more source

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