Finite Groups Which Are the Union of Autocentralizers of Some Automorphisms

Let α be an automorphism of a given group G; then, CGα=g∈G|αg=g is called the autocentralizer of α in G. In this work, we study finite groups G, which can be written as the union of autocentralizers of some automorphisms of G. In particular, if a group G is 5-A-centralizers, then we determine the ab...

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Main Authors: Esmat Alamshahi, Mohammad Reza R. Moghaddam, Mohammad Amin Rostamyari
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Journal of Mathematics
Online Access:http://dx.doi.org/10.1155/2022/4923433
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author Esmat Alamshahi
Mohammad Reza R. Moghaddam
Mohammad Amin Rostamyari
author_facet Esmat Alamshahi
Mohammad Reza R. Moghaddam
Mohammad Amin Rostamyari
author_sort Esmat Alamshahi
collection DOAJ
description Let α be an automorphism of a given group G; then, CGα=g∈G|αg=g is called the autocentralizer of α in G. In this work, we study finite groups G, which can be written as the union of autocentralizers of some automorphisms of G. In particular, if a group G is 5-A-centralizers, then we determine the absolute central quotient G/LG of G, where A=AutG. Finally, it is shown that autocommutative property of a group is equivalent to the one, in which every A-centralizer of its nontrivial elements is abelian.
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institution Kabale University
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publisher Wiley
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spelling doaj-art-c9dc32c633f245c4a55087eacf0d23662025-02-03T06:11:19ZengWileyJournal of Mathematics2314-47852022-01-01202210.1155/2022/4923433Finite Groups Which Are the Union of Autocentralizers of Some AutomorphismsEsmat Alamshahi0Mohammad Reza R. Moghaddam1Mohammad Amin Rostamyari2Department of MathematicsDepartment of MathematicsDepartment of MathematicsLet α be an automorphism of a given group G; then, CGα=g∈G|αg=g is called the autocentralizer of α in G. In this work, we study finite groups G, which can be written as the union of autocentralizers of some automorphisms of G. In particular, if a group G is 5-A-centralizers, then we determine the absolute central quotient G/LG of G, where A=AutG. Finally, it is shown that autocommutative property of a group is equivalent to the one, in which every A-centralizer of its nontrivial elements is abelian.http://dx.doi.org/10.1155/2022/4923433
spellingShingle Esmat Alamshahi
Mohammad Reza R. Moghaddam
Mohammad Amin Rostamyari
Finite Groups Which Are the Union of Autocentralizers of Some Automorphisms
Journal of Mathematics
title Finite Groups Which Are the Union of Autocentralizers of Some Automorphisms
title_full Finite Groups Which Are the Union of Autocentralizers of Some Automorphisms
title_fullStr Finite Groups Which Are the Union of Autocentralizers of Some Automorphisms
title_full_unstemmed Finite Groups Which Are the Union of Autocentralizers of Some Automorphisms
title_short Finite Groups Which Are the Union of Autocentralizers of Some Automorphisms
title_sort finite groups which are the union of autocentralizers of some automorphisms
url http://dx.doi.org/10.1155/2022/4923433
work_keys_str_mv AT esmatalamshahi finitegroupswhicharetheunionofautocentralizersofsomeautomorphisms
AT mohammadrezarmoghaddam finitegroupswhicharetheunionofautocentralizersofsomeautomorphisms
AT mohammadaminrostamyari finitegroupswhicharetheunionofautocentralizersofsomeautomorphisms