Morteza JAFARI,Akbar GOLCHIN,Hossein MOHAMMADZADEH SAANY.On Characterization of Monoids by Properties of Generators[J].数学研究及应用,2020,40(4):367~380
On Characterization of Monoids by Properties of Generators
On Characterization of Monoids by Properties of Generators
投稿时间:2019-03-15  修订日期:2020-04-21
DOI:10.3770/j.issn:2095-2651.2020.04.004
中文关键词:  generator  finitely generated  Subannihilator congruence  injective
英文关键词:generator  finitely generated  Subannihilator congruence  injective
基金项目:
作者单位
Morteza JAFARI Department of Mathematics, University of Sistan and Baluchestan, Zahedan, Iran 
Akbar GOLCHIN Department of Mathematics, University of Sistan and Baluchestan, Zahedan, Iran 
Hossein MOHAMMADZADEH SAANY Department of Mathematics, University of Sistan and Baluchestan, Zahedan, Iran 
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中文摘要:
      Kilp and Knauer in (Comm. Algebra, 1992, 20(7), 1841--1856) gave characterizations of monoids when all generators in category of right $S$-acts ($S$ is a monoid) satisfy properties such as freeness, projectivity, strong flatness, Condition (P), principal weak flatness, principal weak injectivity, weak injectivity, injectivity, divisibility, strong faithfulness and torsion freeness. Sedaghtjoo in (Semigroup Forum, 2013, 87: 653--662) characterized monoids by some other properties of generators including weak flatness, Condition (E) and regularity. To our knowledge, the problem has not been studied for properties mentioned above of (finitely generated, cyclic, monocyclic, Rees factor) right acts. In this article we answer the question corresponding to these properties and also $fg$-weak injectivity.
英文摘要:
      Kilp and Knauer in (Comm. Algebra, 1992, 20(7), 1841--1856) gave characterizations of monoids when all generators in category of right $S$-acts ($S$ is a monoid) satisfy properties such as freeness, projectivity, strong flatness, Condition (P), principal weak flatness, principal weak injectivity, weak injectivity, injectivity, divisibility, strong faithfulness and torsion freeness. Sedaghtjoo in (Semigroup Forum, 2013, 87: 653--662) characterized monoids by some other properties of generators including weak flatness, Condition (E) and regularity. To our knowledge, the problem has not been studied for properties mentioned above of (finitely generated, cyclic, monocyclic, Rees factor) right acts. In this article we answer the question corresponding to these properties and also $fg$-weak injectivity.
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