A module M is said to be weakly N-projective if it has a projective cover π: P (M)↠ M and for
each homomorphism: P (M)→ N there exists an epimorphism σ: P (M)↠ M such that (kerσ) …

In this thesis, we will study the relations between weakly injective, weakly projective versus
extending and lifting modules and its generalization. Mainly, we study rings over which …

The purpose of this paper is to further the study of weakly injective and weakly tight modules
a generalization of injective modules. A right R-module M is said to be weakly tight (tight) if …

Given a right R-module M, a module QE arM] is said to be weakly injective in arM] if for every
finitely generated submodule N of the M-injective hull Q, N is contained in a submodule Y of …

The purpose of this paper is to further the study of weakly injective and weakly projective
modules as a generalization of injective and projective modules. For a locally qfd module …

The aim of the present paper is to introduce and study the dual concepts of weakly
automorphism invariant modules and essential tightness. These notions are non-trivial …

The purpose of this paper is to further the study of countably thick modules via weak
injectivity. Among others, for some classes ${\mathcal M} $ of modules in $\sigma [M] $ we …

The purpose of this paper is to further the study of weakly injective and weakly tight modules
a generalization of injective modules. For a Serre class K of modules, we study when direct …

Let M and A be right R-modules. Then, M is called A-Ker projective if there exist projective
modules P< sub> N, P< sub> A and epimorphisms f< sub> N: P< sub> N→ N, g< sub> A: P< …