Add to ORKGOur main goal in this dissertation is to investigate semi-projective modules, direct projective modules and SGQ-projective modules, which are generalizations of quasi-projective modules and to discover new properties and new characterizations of these modules.In the first chapter,we give preliminary notions and some results.The second chapter is devoted to semi-projective modules.We study some basic properties of such modules and provide some new characterizations.In the third chapter, we define SGQ-projective modules.Some properties of this modules and its endomorphism rings are studied.In the fourth chapter, we first investigate some connections between the notions of epi projectivity, epi K-projectivity, epi K*-projectivity.Chapter 5, is...
In this paper we study some properties of GC- projective, injective and flat modules, where C is a s...
Modules are a generalization of the vector spaces of linear algebra in which the “scalars” are allow...
Abstract. In [3], K.Oshiro and his students introduced “ojectivity (generalized injec-tivity)”, a ne...
In this thesis general notions of projectivity and injectivity for semimodules are defined. This is ...
A module M is said to be generalized N-projective (or N-dual ojective) if, for any epimorphism g : N...
This paper deals with projective and k-projective semimodules. The results for projective semimodule...
Abstract. A module M is said to be generalized N-projective (or N-dual ojective) if, for any epimorp...
A module M is said to be generalized N-projective (or N-dual ojective) if, for any epimorphism g : N...
A module M is said to be generalized N-projective (or N-dual ojective) if, for any epimorphism g : N...
In this paper we introduce the concepts of $SG_C$-projective, injective and flat modules, where $C$ ...
AbstractThis paper studies the multiplicative ideal structure of commutative rings in which every fi...
This paper contains new and previously known results on modules that are close to direct projective ...
Abstract. Let R be a ring. A right R-module M is called quasi-principally (or semi-) injective if it...
The concept of almost N-projectivity is defined in [5] by M. Harada and A. Tozaki to translate the c...
In this paper we give three new concepts, a concepts of δ-Small pseudo projective module, δ-small qu...
In this paper we study some properties of GC- projective, injective and flat modules, where C is a s...
Modules are a generalization of the vector spaces of linear algebra in which the “scalars” are allow...
Abstract. In [3], K.Oshiro and his students introduced “ojectivity (generalized injec-tivity)”, a ne...
In this thesis general notions of projectivity and injectivity for semimodules are defined. This is ...
A module M is said to be generalized N-projective (or N-dual ojective) if, for any epimorphism g : N...
This paper deals with projective and k-projective semimodules. The results for projective semimodule...
Abstract. A module M is said to be generalized N-projective (or N-dual ojective) if, for any epimorp...
A module M is said to be generalized N-projective (or N-dual ojective) if, for any epimorphism g : N...
A module M is said to be generalized N-projective (or N-dual ojective) if, for any epimorphism g : N...
In this paper we introduce the concepts of $SG_C$-projective, injective and flat modules, where $C$ ...
AbstractThis paper studies the multiplicative ideal structure of commutative rings in which every fi...
This paper contains new and previously known results on modules that are close to direct projective ...
Abstract. Let R be a ring. A right R-module M is called quasi-principally (or semi-) injective if it...
The concept of almost N-projectivity is defined in [5] by M. Harada and A. Tozaki to translate the c...
In this paper we give three new concepts, a concepts of δ-Small pseudo projective module, δ-small qu...
In this paper we study some properties of GC- projective, injective and flat modules, where C is a s...
Modules are a generalization of the vector spaces of linear algebra in which the “scalars” are allow...
Abstract. In [3], K.Oshiro and his students introduced “ojectivity (generalized injec-tivity)”, a ne...