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http://dx.doi.org/10.4134/JKMS.2009.46.1.051

THE CLASS OF MODULES WITH PROJECTIVE COVER  

Guo, Yong-Hua (DEPARTMENT OF MATHEMATICS NANJING UNIVERSITY, DEPARTMENT OF MATHEMATICS GUANGXI NORMAL UNIVERSITY)
Publication Information
Journal of the Korean Mathematical Society / v.46, no.1, 2009 , pp. 51-58 More about this Journal
Abstract
Let R be a ring. A right R-module M is called perfect if M possesses a projective cover. In this paper, we consider the relationship between the class of perfect modules and other classes of modules. Some known rings are characterized by these relationships.
Keywords
projective cover; $C_p$-hereditary ring; perfect ring; small submodule;
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