Rings whose modules are direct sums of extending modules

N Er - Proceedings of the American Mathematical Society, 2009 - ams.org
We prove that for a ring $ R $, the following are equivalent:(i) Every right $ R $-module is a
direct sum of extending modules, and (ii) $ R $ has finite type and right colocal type (ie …

Rings whose modules are⊕-supplemented

D Keskin, PF Smith, W Xue - Journal of Algebra, 1999 - Elsevier
Rings Whose Modules Are {oplus}-Supplemented Page 1 Ž . Journal of Algebra 218, 470487
1999 Article ID jabr.1998.7830, available online at http:rrwww.idealibrary.com on Rings Whose …

Rings over which direct sums of CS modules are CS

D Van Huynh, BJ Müller - Advances in ring theory, 1997 - Springer
A module M is defined to be a CS module, if every submodule of M is essential in a direct
summand of M. In this paper we show, among other results, that for a right nonsingular ring …

Characterizing rings by a direct decomposition property of their modules

D Van Huynh, ST Rizvi - Journal of the Australian Mathematical …, 2006 - cambridge.org
A module M is said to satisfy the condition (℘*) if M is a direct sum of a projective module
and a quasi-continuous module. In an earlier paper, we described the structure of rings over …

[PDF][PDF] Decomposition of modules over right uniserial rings

V Dlab, CM Ringel - Mathematische Zeitschrift, 1972 - researchgate.net
One of the fundamental problems in the theory of rings is to characterize the rings of
bounded representations type in terms of their structure. The problem has been solved for …

[HTML][HTML] Simple-direct-injective modules

V Camillo, Y Ibrahim, M Yousif, Y Zhou - Journal of algebra, 2014 - Elsevier
A module M over a ring is called simple-direct-injective if, whenever A and B are simple
submodules of M with A≅ B and B⊆⊕ M, we have A⊆⊕ M. Various basic properties of …

[PDF][PDF] Finitely Presented Right Modules Over a Left Pure‐Semisimple Ring

I Herzog - Bulletin of the London Mathematical Society, 1994 - academia.edu
In this note, we study rings over which every left module is a direct sum of finitely generated
modules. Chase [5] showed that all such rings are left artinian and Fuller [8] proved that …

Rings over which cyclics are direct sums of projective and CS or Noetherian

CJ Holston, SK Jain, A Leroy - Glasgow Mathematical Journal, 2010 - cambridge.org
R is called a right WV-ring if each simple right R-module is injective relative to proper cyclics.
If R is a right WV-ring, then R is right uniform or a right V-ring. It is shown that a right WV-ring …

Artinian right serial rings

S Singh - Proceedings of the American Mathematical Society, 1997 - ams.org
Let $ R $ be an artinian ring such that for the Jacobson radical $ J $ of $ R $, $ R/J $ is a
direct product of matrix rings over finite-dimensional division rings. Then the following are …

Rings with indecomposable right modules local

S Singh - Taiwanese Journal of Mathematics, 2010 - projecteuclid.org
Every indecomposable module over a generalized uniserial ring is uniserial, hence local.
This motivates one to study rings R satisfying the condition (*): R is a right artinian ring such …