Browsing by Subject "Ding injective chain complexes"
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- PublicationOpen AccessCharacterizations of Ding Injective Complexes(Springer, 2019-07-24) Yang, Gang; Estrada, Sergio; MatemáticasLet R be a ring and X a chain complex of R-modules. It is proven that if each term is Ding injective in R-Mod for all i in Z , and there exists an integer k such that each ZiX is Ding injective in R-Mod for all i>=k , then X is Ding injective in Ch(R) . If R is a left coherent ring, then a chain complex X is Ding injective if and only if each term is Ding injective in R-Mod for all i in Z.