M. J. Asensio، نويسنده , , J. A. L?pez-Ramos، نويسنده , , B. Torrecillas، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1999
Pages :
23
From page :
437
To page :
459
Abstract :
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.