Hansuk Tansee, S. Wongwal
Abstract
Quasi-principally injective modules were studied in [12]. In this note we introduce the concept dual to quasi-principally injective modules. It is proved that. these modules are equivalent to semi-projective modules. Several properties of the endomorphism ring of a semi-projective module are also obtained.
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Quasi-principally injective modules were studied in [12]. In this note we introduce the concept dual to quasi-principally injective modules. It is proved that. these modules are equivalent to semi-projective modules. Several properties of the endomorphism ring of a semi-projective module are also obtained.
Key concepts: Mathematics, Injective function, Injective module, Projective module, Projective test, Projective cover, Endomorphism, Module