Modules which are invariant under automorphisms of their injective hulls

TK Lee, Y Zhou - Journal of Algebra and its Applications, 2013 - World Scientific
A module is defined to be an automorphism-invariant module if it is invariant under
automorphisms of its injective hull. Quasi-injective modules and, more generally, pseudo …

A necessary and sufficient condition for a direct sum of modules to be distributive

E Enochs, MR Pournaki, S Yassemi - Communications in Algebra, 2024 - Taylor & Francis
Let R be an associative ring with unity. A unital left R-module M is said to be distributive if for
every submodules S, T and U of M, the equality S∩(T+ U)= S∩ T+ S∩ U holds true. In this …

[PDF][PDF] On some monic covers and epic envelopes

S Crivei, B Torrecillas - Arabian Journal for Science and Engineering, 2008 - academia.edu
We establish equivalent conditions under which every object in an Abelian category has a
monic X-cover and an epic X-envelope respectively, when X is a class of objects closed …

On iso-DICC modules

SM Javdannezhad, M Maschizadeh… - Communications in …, 2024 - Taylor & Francis
In this paper, the concept of iso-DICC modules is introduced and extensively investigated.
These modules are the generalization of DICC, iso-Noetherian and iso-Artinian modules …

A point-free version of torsionfree classes and the Goldie torsion theor

M Medina-Bárcenas, MLS Sandoval-Miranda… - arXiv preprint arXiv …, 2024 - arxiv.org
Torsion theories are a pinnacle in the theory of abelian categories. They are a
generalization of torsion abelian groups and in this generalization one of the most studied is …

On parallel Krull dimension of modules

M Shirali, N Shirali - Communications in Algebra, 2022 - Taylor & Francis
In this article, we introduce the concept of parallel Krull dimension of a module (briefly, p.
Krull dimension), which is Krull-like dimension extension of the concept of DCC on poset of …

Perpendicular graph of modules

M Shirali, E Momtahan… - Hokkaido Mathematical …, 2020 - projecteuclid.org
Let $ R $ be a ring and $ M $ be an $ R $-module. Two modules $ A $ and $ B $ are called
orthogonal, written $ A\perp B $, if they do not have non-zero isomorphic submodules. We …

FURTHER STUDIES OF THE PERPENDICULAR GRAPHS OF MODULES

M Shirali, S Safaeeyan - Journal of Algebraic Systems, 2023 - jas.shahroodut.ac.ir
‌In this paper we continue our study of perpendicular graph of modules‌, ‌that was introduced
in\cite {Hokkaido} ‌. ‌Let $ R $ be a ring and $ M $ be an $ R $-module‌. ‌Two modules $ A …

Pseudocomplements and strong pseudocomplements in lattices of module classes

A Alvarado-García, C Cejudo-Castilla… - Journal of Algebra …, 2018 - World Scientific
In this work, we consider the existence and construction of pseudocomplements in some
lattices of module classes. The classes of modules belonging to these lattices are defined …

On boolean lattices of module classes

A Alvarado-García, C Cejudo-Castilla… - Algebra …, 2018 - World Scientific
Some properties of and relations between several (big) lattices of module classes are used
in this paper to obtain information about the ring over which modules are taken. The authors …