Some Generalizations of Quasi-Projective Modules

ALGEBRA COLLOQUIUM(2015)

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摘要
In this paper, the concepts of SGQ-projective, quasi-epi kappa-projective and quasi-epi kappa*-projective modules are introduced and some properties of these modules are investigated. Hopfian and co-Hopfian modules are investigated via quasi(-epi) kappa-projective and quasi(-epi) kappa*-projective modules.
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关键词
(quasi-)discrete modules,lifting modules,SGQ-projective modules,semi-projective modules
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