Results 21 to 30 of about 482,834 (118)

Extension Functors of Generalized Local Cohomology Modules

open access: yesپژوهش‌های ریاضی, 2021
Introduction Throughout this paper,  is a commutative Noetherian ring with non-zero identity,  is an ideal of ,  is a finitely generated -module, ‎and  is an arbitrary -module which is not necessarily finitely generated.
Alireza Vahidi   +2 more
doaj  

Some results on the cofiniteness of local cohomology modules [PDF]

open access: yes, 2012
summary:Let $R$ be a commutative Noetherian ring, $\mathfrak {a}$ an ideal of $R$, $M$ an $R$-module and $t$ a non-negative integer. In this paper we show that the class of minimax modules includes the class of $\mathcal {AF}$ modules. The main result is
Mostaghim, Mahdi Hanifi   +2 more
core   +1 more source

Cofinitely essential g-supplemented modules

open access: yesMiskolc Mathematical Notes, 2022
Summary: Let \(M\) be an \(R\)-module. If every cofinite essential submodule of \(M\) has a g-supplement in \(M\), then \(M\) is called a cofinitely essential g-supplemented (or briefly cofinitely eg-supplemented) module. In this work, some properties of these modules are investigated.
Nebiyev, Celil, Ökten, Hasan Hüseyin
openaire   +3 more sources

ON A GENERALIZATION OF COFINITELY LIFTING MODULES [PDF]

open access: yesInternational Journal of Pure and Apllied Mathematics, 2014
In this paper, we study on cofinitely Rad-lifting modules as a proper generalization of modules with the property (P?) and cofinitely lifting modules, and we obtain the properties of these modules. In particular, we prove that if M with the property (SSP) is a cofinitely Rad-lifting module, then M/N is a cofinitely Rad-lifting module for every direct ...
openaire   +1 more source

Cofinite modules and cofiniteness of local cohomology modules

open access: yesRevista de la Unión Matemática Argentina
All rings in this review are commutative with identity and all modules are unitary. Let \(R\) be a Noetherian ring with non-zero identity, \(\mathfrak{a}\) an ideal of \(R,\) \(M\) a finitely generated (or finite for short) \(R\)-module, \(X\) an arbitrary \(R\)-module, and \(n\) a non-negative integer.
Vahidi, Alireza   +2 more
openaire   +2 more sources

Tilting modules and Gorenstein rings

open access: yes, 2006
We apply tilting theory to study modules of finite projective dimension. We introduce the notion of finite and cofinite type for tilting and cotilting classes of modules, respectively, showing that, for each dimension, there is a bijection between these ...
ANGELERI, LIDIA, HERBERA D., TRLIFAJ J.
core   +3 more sources

On cofinitely weak $\delta-$ supplemented modules [PDF]

open access: yesMiskolc Mathematical Notes, 2017
Let R be a ring and M be a left R-module. M is called cofinitely weak delta-supplemented ( or briefly delta-CWS-module) if every cofinite submodule of M has a weak delta-supplement in M. In this paper, we give various properties of this kind of modules.
ERYILMAZ, Figen, EREN, Şenol
openaire   +2 more sources

On the Lang–Trotter conjecture for Siegel modular forms

open access: yesMathematika, Volume 72, Issue 3, July 2026.
Abstract Let f$f$ be a genus‐two cuspidal Siegel eigenform. We prove an adelic open image theorem for the compatible system of Galois representations associated with f$f$, generalizing the results of Ribet and Momose for elliptic modular forms. Using this result, we investigate the distribution of the Hecke eigenvalues ap$a_p$ of f$f$, and obtain upper
Arvind Kumar, Moni Kumari, Ariel Weiss
wiley   +1 more source

Profinite direct sums with applications to profinite groups of type ΦR$\Phi _R$

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.
Abstract We show that the ‘profinite direct sum’ is a good notion of infinite direct sums for profinite modules, having properties similar to those of direct sums of abstract modules. For example, the profinite direct sum of projective modules is projective, and there is a Mackey's formula for profinite modules described using these sums.
Jiacheng Tang
wiley   +1 more source

A Generalized Topology Approach to Trajectory Convergence in Nonautonomous Evolution Equations With Monotone Operators

open access: yesAbstract and Applied Analysis, Volume 2026, Issue 1, 2026.
This paper investigates the application of β‐open sets to the convergence analysis of nonautonomous evolution equations governed by maximal monotone operators in Hilbert spaces. β‐open sets are a class of generalized open sets introduced by Njåstad (1965), which coincides with the class of semiopen sets by Levine (1963).
Boushra Abbas, Simeon Reich
wiley   +1 more source

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