English

A generalization of supplemented modules

Rings and Algebras 2011-08-18 v1

Abstract

Let MM be a left module over a ring RR and II an ideal of RR. MM is called an II-supplemented module (finitely II-supplemented module) if for every submodule (finitely generated submodule) XX of MM, there is a submodule YY of MM such that X+Y=MX+Y=M, XYIYX\cap Y\subseteq IY and XYX\cap Y is PSD in YY. This definition generalizes supplemented modules and δ\delta-supplemented modules. We characterize II-semiregular, II-semiperfect and II-perfect rings which are defined by Yousif and Zhou [15] using II-supplemented modules. Some well known results are obtained as corollaries.

Keywords

Cite

@article{arxiv.1108.3381,
  title  = {A generalization of supplemented modules},
  author = {Yongduo Wang},
  journal= {arXiv preprint arXiv:1108.3381},
  year   = {2011}
}

Comments

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R2 v1 2026-06-21T18:51:23.486Z