Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4664701 | Acta Mathematica Scientia | 2009 | 11 Pages |
Abstract
Let R be a ring and S a class of R-modules. S-superfluous epimorphisms and S-essential monomorphisms are introduced and studied in this article. As applications, some new characterizations of von Neumann regular rings and perfect rings are given. Finally, these notions are also used to study minimal homomorphisms.
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Mathematics
Mathematics (General)