Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9493403 | Journal of Algebra | 2005 | 32 Pages |
Abstract
We extend Morita theory to abelian categories by using wide Morita contexts. Several equivalence results are given for wide Morita contexts between abelian categories, widely extending equivalence theorems for categories of modules and comodules due to Kato, Müller, and Berbec. In the case of Grothendieck categories we derive equivalence results by using quotient categories. We apply the general equivalence results to rings with identity, rings with local units, graded rings, Doi-Hopf modules and coalgebras.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
N. Chifan, S. DÄscÄlescu, C. NÄstÄsescu,