Module classes determined by the behavior of y-closed submodules
摘要
The main purpose of this article is to introduce two new classes of modules, the first one is the y-duo modules, which are bigger than the class of CL-duo modules, the second one is the concept of strongly CLS module; this new class of modules lies between the strongly CCLS modules and y-duo modules. Several properties of these concepts are introduced in this paper. Furthermore, we investigate several characterizations and many relationships between certain features of the modules.