n-complete crossed modules and wreath products of groups

In this paper we examine the $n$-completeness of a crossed module and we show that if $X=(W_1,W_2,\partial)$ is an $n$-complete crossed module, where $W_i=A_i wr B_i$ is the wreath product of groups $A_i$ and $B_i$, then $A_i$ is at most $n$-complete, for $i=1,2.$ Moreover, we show that when $X=(W...

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Main Authors: B. Davvaz, M.a. Dehghani
Format: Article
Language:English
Published: Tokat Gaziosmanpasa University 2021-04-01
Series:Journal of New Results in Science
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Online Access:https://dergipark.org.tr/en/download/article-file/1691990
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author B. Davvaz
M.a. Dehghani
author_facet B. Davvaz
M.a. Dehghani
author_sort B. Davvaz
collection DOAJ
description In this paper we examine the $n$-completeness of a crossed module and we show that if $X=(W_1,W_2,\partial)$ is an $n$-complete crossed module, where $W_i=A_i wr B_i$ is the wreath product of groups $A_i$ and $B_i$, then $A_i$ is at most $n$-complete, for $i=1,2.$ Moreover, we show that when $X=(W_1,W_2,\partial)$ is an $n$-complete crossed module, where $A_i$ is nilpotent and $B_i$ is nilpotent of class $n$, for $i=1,2$, then if $A_i$ is an abelian group, then it is cyclic of order $p_i.$ Also, if $W_i=C_ pwr C_2$, where $p$ is prime with $p>3$, $i=1,2$, then $X=(W_1,W_2,\partial)$ is not an $n$-complete crossed module.
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institution Kabale University
issn 1304-7981
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publishDate 2021-04-01
publisher Tokat Gaziosmanpasa University
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series Journal of New Results in Science
spelling doaj-art-ddb1260bd3a04b76adc35863775696432025-08-20T03:44:19ZengTokat Gaziosmanpasa UniversityJournal of New Results in Science1304-79812021-04-011013845142n-complete crossed modules and wreath products of groupsB. Davvaz0https://orcid.org/0000-0003-1941-5372M.a. Dehghani1https://orcid.org/0000-0001-6327-6416Yazd UniversityYazd UniversityIn this paper we examine the $n$-completeness of a crossed module and we show that if $X=(W_1,W_2,\partial)$ is an $n$-complete crossed module, where $W_i=A_i wr B_i$ is the wreath product of groups $A_i$ and $B_i$, then $A_i$ is at most $n$-complete, for $i=1,2.$ Moreover, we show that when $X=(W_1,W_2,\partial)$ is an $n$-complete crossed module, where $A_i$ is nilpotent and $B_i$ is nilpotent of class $n$, for $i=1,2$, then if $A_i$ is an abelian group, then it is cyclic of order $p_i.$ Also, if $W_i=C_ pwr C_2$, where $p$ is prime with $p>3$, $i=1,2$, then $X=(W_1,W_2,\partial)$ is not an $n$-complete crossed module.https://dergipark.org.tr/en/download/article-file/1691990crossed modulewreath productscommutator
spellingShingle B. Davvaz
M.a. Dehghani
n-complete crossed modules and wreath products of groups
Journal of New Results in Science
crossed module
wreath products
commutator
title n-complete crossed modules and wreath products of groups
title_full n-complete crossed modules and wreath products of groups
title_fullStr n-complete crossed modules and wreath products of groups
title_full_unstemmed n-complete crossed modules and wreath products of groups
title_short n-complete crossed modules and wreath products of groups
title_sort n complete crossed modules and wreath products of groups
topic crossed module
wreath products
commutator
url https://dergipark.org.tr/en/download/article-file/1691990
work_keys_str_mv AT bdavvaz ncompletecrossedmodulesandwreathproductsofgroups
AT madehghani ncompletecrossedmodulesandwreathproductsofgroups