The Existence of Triple Factorizations for Sporadic Groups of Rank 3

A finite group G with proper subgroups A and B has triple factorization G = ABA if every element g of G can be represented as g = aba0 , where a and a 0 are from A and b is from B. Such a triple factorization may be sometimes degenerate to AB-factorization. The task of finding triple factorizations...

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Main Authors: L. S. Kazarin, I. A. Rassadin, D. N. Sakharov
Format: Article
Language:English
Published: Yaroslavl State University 2015-04-01
Series:Моделирование и анализ информационных систем
Subjects:
Online Access:https://www.mais-journal.ru/jour/article/view/242
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author L. S. Kazarin
I. A. Rassadin
D. N. Sakharov
author_facet L. S. Kazarin
I. A. Rassadin
D. N. Sakharov
author_sort L. S. Kazarin
collection DOAJ
description A finite group G with proper subgroups A and B has triple factorization G = ABA if every element g of G can be represented as g = aba0 , where a and a 0 are from A and b is from B. Such a triple factorization may be sometimes degenerate to AB-factorization. The task of finding triple factorizations for a group is fundamental and can be used for understanding the group structure. For instance, every simple finite group of Lie type has a natural factorization of such a type. Besides, the triple factorization is widely used in the study of graphs, geometries and varieties. The goal of this article is to find triple factorizations for sporadic groups of rank 3. We have proved the existence theorem of ABA-factorization for sporadic simple groups McL and F i22. There exist two rank 3 permutation representations of F i22. We have proved that ABA-factorizations exist in both cases.
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spelling doaj.art-d819a1787959432992ec7c640f511ec22025-03-02T12:46:57ZengYaroslavl State UniversityМоделирование и анализ информационных систем1818-10152313-54172015-04-0122221923710.18255/1818-1015-2015-2-219-237235The Existence of Triple Factorizations for Sporadic Groups of Rank 3L. S. Kazarin0I. A. Rassadin1D. N. Sakharov2P.G. Demidov Yaroslavl State UniversityООО «Нетис Телеком»ООО «Агентство развития «4Р»A finite group G with proper subgroups A and B has triple factorization G = ABA if every element g of G can be represented as g = aba0 , where a and a 0 are from A and b is from B. Such a triple factorization may be sometimes degenerate to AB-factorization. The task of finding triple factorizations for a group is fundamental and can be used for understanding the group structure. For instance, every simple finite group of Lie type has a natural factorization of such a type. Besides, the triple factorization is widely used in the study of graphs, geometries and varieties. The goal of this article is to find triple factorizations for sporadic groups of rank 3. We have proved the existence theorem of ABA-factorization for sporadic simple groups McL and F i22. There exist two rank 3 permutation representations of F i22. We have proved that ABA-factorizations exist in both cases.https://www.mais-journal.ru/jour/article/view/242group factorizationsporadic groupsmclaughlin groupfisher group
spellingShingle L. S. Kazarin
I. A. Rassadin
D. N. Sakharov
The Existence of Triple Factorizations for Sporadic Groups of Rank 3
Моделирование и анализ информационных систем
group factorization
sporadic groups
mclaughlin group
fisher group
title The Existence of Triple Factorizations for Sporadic Groups of Rank 3
title_full The Existence of Triple Factorizations for Sporadic Groups of Rank 3
title_fullStr The Existence of Triple Factorizations for Sporadic Groups of Rank 3
title_full_unstemmed The Existence of Triple Factorizations for Sporadic Groups of Rank 3
title_short The Existence of Triple Factorizations for Sporadic Groups of Rank 3
title_sort existence of triple factorizations for sporadic groups of rank 3
topic group factorization
sporadic groups
mclaughlin group
fisher group
url https://www.mais-journal.ru/jour/article/view/242
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