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Yahya Talebi

Yahya Talebi

Academic rank: Professor
ORCID: https://orcid.org/0000-0003-2311-4628
Education: PhD.
ScopusId:
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Faculty: Faculty of Mathematical Sciences
Address: Dep. Math. University of Mazandaran
Phone: 01135302467

Research

Title
H-supplemented modules with respect to a preradical
Type
JournalPaper
Keywords
H-supplemented module, τ-H-supplemented module, τ-lifting module
Year
2011
Journal Algebra and Discrete Mathematics
DOI
Researchers Yahya Talebi ، Ali Reza Moniri Hamzekolaee ، Derya Keskin

Abstract

Let M be a right R-module and τ a preradical. We call M τ-H-supplemented if forevery submodule A of M there exists a direct summand D of M such that (A+D)/D ⊆ τ(M/D) and (A+D)/A ⊆ τ(M/A). Let τ be a cohereditary preradical. Firstly, for a duo module M = M1 ⊕M2 we prove that M is τ-H-supplemented if and only if M1 and M2 are τ-H-supplemented. Secondly, let M = ⊕n i=1Mi be a τ-supplemented module. Assume that Mi is τ-Mj-projective for all j > i. If each Mi is τ-H-supplemented, then M is τ-H-supplemented. We also investigate the relations between τ-H-supplemented modules and τ-(⊕-)supplemented modules.