1. Some Results on δ-Semiperfect Rings and δ-Supplemented Modules.
- Author
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ABDIOĜLU, CIHAT and ŞAHINKAYA, SERAP
- Subjects
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EQUATIONS , *MATHEMATICAL analysis , *NUMERICAL analysis , *MATHEMATICAL functions , *SET theory - Abstract
In [9], the author extends the definition of lifting and supplemented modules to δ-lifting and δ-supplemented by replacing "small submodule" with "δ-small submodule" introduced by Zhou in [13]. The aim of this paper is to show new properties of δ-lifting and δ-supplemented modules. Especially, we show that any finite direct sum of δ-hollow modules is δ-supplemented. On the other hand, the notion of amply δ-supplemented modules is studied as a generalization of amply supplemented modules and several properties of these modules are given. We also prove that a module M is Artinian if and only if M is amply δ-supplemented and satisfies Descending Chain Condition (DCC) on δ-supplemented modules and on δ-small submodules. Finally, we obtain the following result: a ring R is right Artinian if and only if R is a δ-semiperfect ring which satisfies DCC on δ-small right ideals of R. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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