Results 1 to 10 of about 25,785 (225)
In this paper we generalize the notion of pure injectivity of modules by introducing what we call a pure Baer injective module. Some properties and some characterization of such modules are established.
Nada M. Al Thani
doaj +3 more sources
Duality of Preenvelopes and Pure Injective Modules [PDF]
Let $R$ be an arbitrary ring and $(-)^+=\Hom_{\mathbb{Z}}(-, \mathbb{Q}/\mathbb{Z})$ where $\mathbb{Z}$ is the ring of integers and $\mathbb{Q}$ is the ring of rational numbers, and let $\mathcal{C}$ be a subcategory of left $R$-modules and $\mathcal{D}$
Huang, Zhaoyong
core +3 more sources
Some decomposition properties of injective and pure-injective modules [PDF]
Many results are known about injective modules, or generalisations thereof, in the category of modules over a ring. For example there are results concerning the expressibility of such modules as direct sums of indecomposable modules. The theme of this paper is to prove such results for injective objects, or more general objects, in a suitable category.
DUNG, NGUYEN VIET, GARCIA, JOSE LUIS
core +6 more sources
Some Properties of Strongly Principally Self-Injective Modules [PDF]
The idea of generalizing quasi injective by employing a new term is introduced in this paper. The introduction of principally self-injective modules, which are principally self-injective modules.
Khalid Munshid +2 more
doaj +1 more source
Classification of 1-absorbing comultiplication modules over a pullback ring [PDF]
One of the aims of the modern representation theory is to solve classification problems for subcategories of modules over a unitary ring R. In this paper, we introduce the concept of 1-absorbing comultiplication modules and classify 1-absorbing ...
Farkhondeh Farzalipour, Peyman Ghiasvand
doaj +1 more source
In this paper, we investigate the notions of X⊥-projective, X-injective, and X-flat modules and give some characterizations of these modules, where X is a class of left modules. We prove that the class of all X⊥-projective modules is Kaplansky.
Arunachalam Umamaheswaran +4 more
doaj +1 more source
Cotilting versus pure-injective modules [PDF]
Let \(R\) be an associative ring. A left \(R\)-module \(_RW\) is said to be cotilting if the class of modules cogenerated by \(_RW\) coincides with the class of modules for which the functor \(\text{Ext}^1_R(-,W)\) vanishes. This paper explores the relation between cotilting modules and pure-injective modules.
Mantese F, Ruzicka P, TONOLO, ALBERTO
openaire +4 more sources
Ziegler partial morphisms in additive exact categories
We develop a general theory of partial morphisms in additive exact categories which extends the model theoretic notion introduced by Ziegler in the particular case of pure-exact sequences in the category of modules over a ring.
Manuel Cortés-Izurdiaga +3 more
doaj +1 more source
Cotorsion modules and relative pure-injectivity [PDF]
AbstractLet R be a ring. A right R-module C is called a cotorsion module if Ext1R (F, C) = 0 for any flat right R-module F. In this paper, we first characterize those rings satisfying the condition that every cotorsion right (left) module is injective with respect to a certain class of right (left) ideals.
Mao, Lixin, Ding, Nanqing
openaire +2 more sources
Cotilting modules are pure-injective [PDF]
We prove that a cotilting module over an arbitrary ring is pure-injective.
openaire +4 more sources

