Covers and Envelopes over gr-Gorenstein Rings

Covers and Envelopes over gr-Gorenstein Rings

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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Veröffentlicht in:Journal of algebra 1999-05, Vol.215 (2), p.437-459
Hauptverfasser: Asensio, M.J, López-Ramos, J.A, Torrecillas, B
Format: Artikel
Sprache:eng
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Zusammenfassung: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.
ISSN:0021-8693
1090-266X
DOI:10.1006/jabr.1998.7722