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Covers and Envelopes over gr-Gorenstein Rings

✍ Scribed by M.J Asensio; J.A López-Ramos; B Torrecillas

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
148 KB
Volume
215
Category
Article
ISSN
0021-8693

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✦ Synopsis

In this paper we study the existence of Gorenstein injective envelopes and Gorenstein projective and flat covers in the category of graded modules and we relate them with the corresponding envelopes and covers in the category of modules.

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## Abstract We give sufficient conditions on a class of __R__‐modules \documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}$\mathcal {C}$\end{document} in order for the class of complexes of \documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}$\mathcal