On lifting modules
D Keskin - Communications in Algebra, 2000 - Taylor & Francis
Let R be a ring with identity and let be a finite direct sum of relatively protective R-modules
Mi Then it is proved that M is lifting if and only if M is amply supplemented and Mi is lifting for …
Mi Then it is proved that M is lifting if and only if M is amply supplemented and Mi is lifting for …
Extending modules with injective or semisimple summands
C Santa-Clara - Journal of Pure and Applied Algebra, 1998 - Elsevier
We characterize when the direct sum of an extending module and an injective module is
extending and when the direct sum of an extending module with the finite exchange property …
extending and when the direct sum of an extending module with the finite exchange property …