Mathematical Journal of Okayama University Page 1 Mathematical Journal of Okayama
University Volume 51, Issue 1 2009 Article 6 A NOTE ON ALMOST INJECTIVE MODULES …

This paper is a continuation of study semi-potentness endomorphism rings of module. We
give some other characterizations of endomorphism ring to be semi-potent. New results are …

Let R be a ring. A right R− module M is called quasi-principally injective if it is M− principally
inj ective. In this paper, we give some characterizations and properties of principally inj …

In this notion we consider a generalization of the notion of a projective modules, defined
using y-closed submodules. We show that for a module M= M1⊕ M2. If M2 is M1–y-closed …

The concept of a pseudoinjective module is well known (see eg [7],[9]). As almost everything
in modules, the concept possesses its dual, pseudoprojective module. In this paper we …

In this paper, the concepts of SGQ-projective, quasi-epi-projective and quasi-epi-projective
modules are introduced and some properties of these modules are investigated. Hopfian …

The aim of this paper is to study 'Quasi-pseudo principally projective module'which is the
generalization of quasi-principally projective module. We study some properties of Quasi …

In this study, we investigate the projectivity domain of pure-projective modules. A pure-
projective module is called special-pure-projective (s-pure-projective) module if its …

A module M is called generalized extending if for any submodule N of M, there is a direct
summand K of M such that N≤ K and K/N is singular. Any extending module and any …

拟AP-内射模的自同态环 Page 1 第45卷第6期 Vol.45 No.6 山东大学学报(理学版)
JournalofShandongUniversity(NaturalScience) 2010年6月 Jun.2010 收稿日期:20090710 基金 …