H-supplemented modules with respect to images of fully invariant submodules
DOI:
https://doi.org/10.22199/issn.0717-6279-2021-01-0003Keywords:
H-supplemented module, IF -lifting module, IF-H-supplemented module, Dual Rickart module, Endomorphisms ringAbstract
Lifting modules plays important roles in module theory. H-supplemented modules are a nice generalization of lifting modules which have been studied extensively recently. In this article, we introduce a proper generalization of H-supplemented modules via images of fully invariant submodules. Let F be a fully invariant submodule of a right Rmodule M. We say that M is IF -H-supplemented in case for every endomorphism φ of M, there is a direct summand D of M such that φ(F) + X = M if and only if D + X = M, for every submodule X of M. It is proved that M is IF -H-supplemented if and only if F is a dual Rickart direct summand of M for a fully invariant noncosingular submodule F of M. It is shown that the direct sum of IF –H supplemented modules is not in general IF -H-supplemented. Some sufficient conditions such that the direct sum of IF -H-supplemented modules is IF -H-supplemented are given
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Copyright (c) 2021 A. R. Moniri Hamzekolaee, Tayyebeh Amouzegar
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