1.3 Research Questions and Hypothesis
We are interested in seeing to extend the characterizations and properties
which remain valid from these previous concepts which can be extended from
principally injective modules [2], principally-injective rings [7], mininjective modules
[8], principally quasi-injective modules [9], small principally quasi-injective modules
[18] and quasi-small principally-injective modules [19].
In this research, we introduce the definition of small simple quasi-injective
modules and ……………………..