Alagoz, Yusuf2024-12-242024-12-2420201303-5991https://doi.org/10.31801/cfsuasmas.640331https://search.trdizin.gov.tr/tr/yayin/detay/1205141https://hdl.handle.net/20.500.12604/7764In this paper, copure-injective modules are examined from an alternative perspective. For two modules A and B, A is called B-subcopure-injective if for every copure monomorphism f : B -> C and homomorphism g : B -> A, there exists a homomorphism h : C -> A such that hf = g. The class CPJ(-1) (A) = {B : A is B-subcopure-injective} is called the subcopure-injectivity domain of A. We obtain characterizations of copure-injective modules, right CDS rings and right V-rings with the help of subcopure-injectivity domains. Since subcopure-injectivity domains clearly contains all copure-injective modules, studying the notion of modules which are subcopure-injective only with respect to the class of copure-injective modules is reasonable. We refer to these modules as sc-indigent. We studied the properties of subcopure-injectivity domains and of sc-indigent modules and investigated these modules over some certain rings.eninfo:eu-repo/semantics/openAccessCopure-injective modulessubcopure-injectivity domainssc-indigent modulesCDS ringsArticle691832846N/AWOS:000545432900029120514110.31801/cfsuasmas.640331