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Title: On weak injectivity and weak projectivity
Authors: Saleh, Mohammad
Abdel-Mohsen, Ali
Keywords: Monoids;Algebra, Homological;Categories (Mathematics)
Issue Date: 2005
Publisher: UD, Fachbereich Mathematik
Source: 5
Abstract: Given a right R-module M, a module Q 2 [M] is said to be weakly injective in [M] if for every finitely generated submodule N of the M-injective hull bQ, N is contained in a submodule Y of bQ such that Y ' Q. Weakly projective modules in [M] are defined dually.
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