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Matematicheskie Zametki, 2021, Volume 109, Issue 3, paper published in the English version journal
(Mi mzm13057)
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Papers published in the English version of the journal
Some Finiteness Results for Local Cohomology Modules
with Respect to a Pair of Ideals
Batoul Naal, Kazem Khashyarmanesh Department of Pure Mathematics, Faculty of Mathematical Sciences
and Center of Excellence in Analysis on Algebraic Structures, Ferdowsi University of Mashhad, Mashhad, 1159-91775 Iran
Abstract:
Suppose that
$R$
is a commutative Noetherian ring with identity,
$I$,
$J$
are ideals of
$R$,
and let
$M$
be a finitely generated
$R$-module.
Let
$H^i_{I,J}(-)$
be the
$i$th local
cohomology
functor with respect to
$(I, J)$.
In this paper, we show that the
$R$-module
$$\mathrm{Hom}_R(R/I,H^1_{I,J}(M)/JH^1_{I,J}(M))$$
is always finitely generated.
Moreover, we provide sufficient conditions such that the modules
$$
\mathrm{Hom}_R(R/I,H^i_{I,J}(M)/JH^i_{I,J}(M)) \qquad \mathrm{or} \qquad
\mathrm{Tor}^R_j(R/I,H^i_{I,J}(M)/JH^i_{I,J}(M))
$$
is finitely generated.
Keywords:
local cohomology with respect to a pair of ideals, associated prime ideals, filter
regular element.
Received: 03.04.2020 Revised: 16.09.2020
Citation:
Batoul Naal, Kazem Khashyarmanesh, “Some Finiteness Results for Local Cohomology Modules
with Respect to a Pair of Ideals”, Math. Notes, 109:3 (2021), 335–346
Linking options:
https://www.mathnet.ru/eng/mzm13057
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