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Ali Reza Moniri Hamzekolaee

Ali Reza Moniri Hamzekolaee

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0002-2852-7870 View this author’s ORCID profile
Education: PhD.
ScopusId: https://www.scopus.com/authid/detail.uri?authorId=55760077600
Faculty: Faculty of Mathematical Sciences
Address: Department of Mathematics, Faculty of Mathematical Sciences, University of Mazandaran
Phone: 09112136072

Research

Title
Weak Hopfcity and singularmodules
Type
JournalPaper
Keywords
Hopfian module · δ-Weakly Hopfian module · Dedekind finite module
Year
2022
Journal Annali dell'Universita di Ferrara
DOI
Researchers َAbdelrahim El Moussaouy ، Ali Reza Moniri Hamzekolaee ، M'Hammed Ziane ، Mehdi Khoramdel

Abstract

The concept of Hopfian modules has been extensively studied in the literature. In this paper, we introduce and study the notion of δ-weakly Hopfian modules. The class of δ-weakly Hopfian modules lies properly between the class of Hopfian modules and the class of weakly Hopfian modules. It is shown that over a ring R, every quasiprojective R-module is δ-weakly Hopfian iff δ(R) = J (R). We prove that any weak duo module, with zero radical is δ-weakly Hopfian. Let M be a module such that M satisfies ascending chain condition on δ-small submodules. Then it is shown that M is δ-weakly Hopfian. Some other properties of δ-weakly Hopfian modules are also obtained with examples.