Relative Weak Injective and Weak Flat Modules with Respect to a Semidualizing Module
2021
Let R be a commutative ring, and let C be a semidualizing R-module. We introduce the notion of finitely presented C-injective modules, finitely presented C-flat modules, weak C-injective modules and weak C-flat modules. Some properties of these modules are investigated. It is proved that over weak C-injective ring R, if for a super finitely presented R-module M, $${\text {Hom}}_{R}(M,R)$$
is super finitely presented and $${\text {Hom}}_{R}(M,R) \in \mathcal {A}_C(R)$$
, then the following statements hold:
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