On the group of unitriangular automorphisms of the polynomial ring in two variables over a finite field

The group UJ₂(Fq) of unitriangular automorphisms of the polynomial ring in two variables over a finite field Fq, q = pm, is studied. We proved that UJ₂(Fq) is isomorphic to a standard wreath product of elementary Abelian p-groups. Using wreath product representation we proved that the nilpotency cla...

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Дата:2014
Автори: Leshchenko, Yu., Sushchansky, V.
Формат: Стаття
Мова:English
Опубліковано: Інститут прикладної математики і механіки НАН України 2014
Назва видання:Algebra and Discrete Mathematics
Онлайн доступ:http://dspace.nbuv.gov.ua/handle/123456789/152947
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:On the group of unitriangular automorphisms of the polynomial ring in two variables over a finite field / Yu. Leshchenko, V. Sushchansky // Algebra and Discrete Mathematics. — 2014. — Vol. 17, № 2. — С. 288–297. — Бібліогр.: 7 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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spelling irk-123456789-1529472019-06-14T01:25:01Z On the group of unitriangular automorphisms of the polynomial ring in two variables over a finite field Leshchenko, Yu. Sushchansky, V. The group UJ₂(Fq) of unitriangular automorphisms of the polynomial ring in two variables over a finite field Fq, q = pm, is studied. We proved that UJ₂(Fq) is isomorphic to a standard wreath product of elementary Abelian p-groups. Using wreath product representation we proved that the nilpotency class of UJ₂(Fq) is c = m(p − 1) + 1 and the (k + 1)th term of the lower central series of this group coincides with the (c − k)th term of its upper central series. Also we showed that UJn(Fq) is not nilpotent if n ≥ 3. 2014 Article On the group of unitriangular automorphisms of the polynomial ring in two variables over a finite field / Yu. Leshchenko, V. Sushchansky // Algebra and Discrete Mathematics. — 2014. — Vol. 17, № 2. — С. 288–297. — Бібліогр.: 7 назв. — англ. 1726-3255 2010 MSC:20D15, 20E22, 20E36, 20F14. http://dspace.nbuv.gov.ua/handle/123456789/152947 en Algebra and Discrete Mathematics Інститут прикладної математики і механіки НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
description The group UJ₂(Fq) of unitriangular automorphisms of the polynomial ring in two variables over a finite field Fq, q = pm, is studied. We proved that UJ₂(Fq) is isomorphic to a standard wreath product of elementary Abelian p-groups. Using wreath product representation we proved that the nilpotency class of UJ₂(Fq) is c = m(p − 1) + 1 and the (k + 1)th term of the lower central series of this group coincides with the (c − k)th term of its upper central series. Also we showed that UJn(Fq) is not nilpotent if n ≥ 3.
format Article
author Leshchenko, Yu.
Sushchansky, V.
spellingShingle Leshchenko, Yu.
Sushchansky, V.
On the group of unitriangular automorphisms of the polynomial ring in two variables over a finite field
Algebra and Discrete Mathematics
author_facet Leshchenko, Yu.
Sushchansky, V.
author_sort Leshchenko, Yu.
title On the group of unitriangular automorphisms of the polynomial ring in two variables over a finite field
title_short On the group of unitriangular automorphisms of the polynomial ring in two variables over a finite field
title_full On the group of unitriangular automorphisms of the polynomial ring in two variables over a finite field
title_fullStr On the group of unitriangular automorphisms of the polynomial ring in two variables over a finite field
title_full_unstemmed On the group of unitriangular automorphisms of the polynomial ring in two variables over a finite field
title_sort on the group of unitriangular automorphisms of the polynomial ring in two variables over a finite field
publisher Інститут прикладної математики і механіки НАН України
publishDate 2014
url http://dspace.nbuv.gov.ua/handle/123456789/152947
citation_txt On the group of unitriangular automorphisms of the polynomial ring in two variables over a finite field / Yu. Leshchenko, V. Sushchansky // Algebra and Discrete Mathematics. — 2014. — Vol. 17, № 2. — С. 288–297. — Бібліогр.: 7 назв. — англ.
series Algebra and Discrete Mathematics
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AT sushchanskyv onthegroupofunitriangularautomorphismsofthepolynomialringintwovariablesoverafinitefield
first_indexed 2023-05-20T17:38:28Z
last_indexed 2023-05-20T17:38:28Z
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