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Gorenstein injective complexes of modules over Noetherian rings
Authors:Liu Zhongkui  Zhang Chunxia
Affiliation:Department of Mathematics, Northwest Normal University, Lanzhou 730070, Gansu, People''s Republic of China
Abstract:A complex C is called Gorenstein injective if there exists an exact sequence of complexes ?I?1I0I1? such that each Ii is injective, C=Ker(I0I1) and the sequence remains exact when Hom(E,?) is applied to it for any injective complex E. We show that over a left Noetherian ring R, a complex C of left R-modules is Gorenstein injective if and only if Cm is Gorenstein injective in R-Mod for all mZ. Also Gorenstein injective dimensions of complexes are considered.
Keywords:
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