On a new variation of injective modules

Authors : Ali PANCAR, Burcu NİŞANCI TÜRKMEN, Celil NEBİYEV, Ergül TÜRKMEN

Pages : 702-711

Doi:10.31801/cfsuasmas.464103

View : 14 | Download : 10

Publication Date : 2019-02-01

Article Type : Research Paper

Abstract :In this paper, we provide various properties of GE and GEE-modules, a new variation of injective modules. We call M a GE-module if it has a g-supplement in every extension N and, we call also M a GEE-module if it has ample g-supplements in every extension N. In particular, we prove that every semisimple module is a GE-module. We show that a module M is a GEE-module if and only if every submodule is a GE-module. We study the structure of GE and GEE-modules over Dedekind domains. Over Dedekind domains the class of GE-modules lies between WS-coinjective modules and Zöschinger`s modules with the property insert ignore into journalissuearticles values(E);. We also prove that, if a ring R is a local Dedekind domain, an R-module M is a GE-module if and only if M≅insert ignore into journalissuearticles values(R^{∗});ⁿ⊕K⊕N, where R^{∗} is the completion of R, K is injective and N is a bounded module.
Keywords : g supplement, GE module