Coretractable modules relative to a module

PK Beiranvand, R Beyranvand - Journal of Algebra and Its …, 2024 - World Scientific
In this paper, we introduce and study a generalization of coretractable modules. An R-
module M is called coretractable relative to an R-module N if Hom R (M/X, N)≠ 0, for any …