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JOURNALS // Algebra and Discrete Mathematics // Archive

Algebra Discrete Math., 2018 Volume 25, Issue 1, Pages 157–164 (Mi adm651)

RESEARCH ARTICLE

Modules which have a rad-supplement that is a direct summand in every extension

Burcu Nişancı Türkmen, Ergül Türkmen

Department of Mathematics, Faculty of Art and Science, Amasya University, Ipekköy, Amasya, Turkey

Abstract: In this paper, we introduce the concept of modules with the properties (RE) and (SRE), and we provide various properties of these modules. In particular, we prove that a semisimple module $M$ is $\operatorname{Rad}$-supplementing if and only if $M$ has the property (SRE). Moreover, we show that a ring $R$ is a left V-ring if and only if every left $R$-module with the property (RE) is injective. Finally, we characterize the rings whose modules have the properties (RE) and (SRE).

Keywords: $\operatorname{Rad}$-supplement, module with the properties (RE) and (SRE), artinian serial ring.

MSC: 16D10, 16D50, 16N80

Received: 04.02.2016
Revised: 29.11.2016

Language: English



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