ON INDECOMPOSABLE DECOMPOSITIONS OF CS-MODULES .2.

Authors
Citation
Nv. Dung, ON INDECOMPOSABLE DECOMPOSITIONS OF CS-MODULES .2., Journal of pure and applied algebra, 119(2), 1997, pp. 139-153
Citations number
27
Categorie Soggetti
Mathematics, Pure",Mathematics,Mathematics,Mathematics
ISSN journal
00224049
Volume
119
Issue
2
Year of publication
1997
Pages
139 - 153
Database
ISI
SICI code
0022-4049(1997)119:2<139:OIDOC.>2.0.ZU;2-V
Abstract
In this paper we give explicit necessary and sufficient conditions for an infinite direct sum of modules with local endomorphism rings to be a CS-module. As consequences, we obtain new characterizations of Sigm a-CS modules and Sigma-CS rings which cover several earlier known resu lts on this topic. (C) 1997 Elsevier Science B.V.