An elementary approach for a description of the Fitting subgroup and soluble radical of a finite group G

Authors

  • Marcello Fidelis Universidade Federal Rural do Rio de Janeiro (UFRRJ), Departamento de Tecnologias e Linguagens, Instituto Multidisciplinar, Nova Iguaçu, RJ, Brasil https://orcid.org/0000-0003-3815-7559
  • José Roger de Oliveira Gomes Universidade Federal Rural do Rio de Janeiro (UFRRJ), Departamento de Tecnologias e Linguagens, Instituto Multidisciplinar, Nova Iguaçu, RJ, Brasil https://orcid.org/0000-0002-0062-4898

DOI:

https://doi.org/10.35819/remat2021v7i2id5193

Keywords:

Group, Nilpotent Groups, Soluble Groups, Fitting Subgroup, Soluble Radical

Abstract

This work presents an approach that prioritizes the use of Isomorphism Theorems of Groups to study soluble groups and nilpotent groups, which aim to describe the soluble radical S(G) of a finite group G as the largest normal solvable subgroup of G and the Fitting subgroup F(G) of a finite group G as the largest normal nilpotent subgroup of a finite group G. As an application, we show that this description allow us to verify whether S(G) and F(G) are examples of a subgroup class defined in Deaconescu and Walls (2011) for which there is a generalization of a classic result that relates a group G with its automorphism group Aut(G).

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Author Biographies

Marcello Fidelis, Universidade Federal Rural do Rio de Janeiro (UFRRJ), Departamento de Tecnologias e Linguagens, Instituto Multidisciplinar, Nova Iguaçu, RJ, Brasil

José Roger de Oliveira Gomes, Universidade Federal Rural do Rio de Janeiro (UFRRJ), Departamento de Tecnologias e Linguagens, Instituto Multidisciplinar, Nova Iguaçu, RJ, Brasil

References

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DEACONESCU, M.; WALLS, G. L. On the group of automorphisms of a group. The American Matemathical Monthly, v. 118, n. 5, p. 452-455, maio 2011.

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GOMES, J. R. O. Grupos de Automorfismos de Grupos. Orientador: Marcello Fidélis. 2021. 34f. Monografia (Conclusão de Curso de Licenciatura em Matemática) - Departamento de Tecnologias e Linguagens, Instituto Multidisciplinar, Universidade Federal Rural do Rio de Janeiro, Nova Iguaçu, RJ, 2021.

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Published

2021-12-15

How to Cite

FIDELIS, M.; GOMES, J. R. de O. An elementary approach for a description of the Fitting subgroup and soluble radical of a finite group G. REMAT: Revista Eletrônica da Matemática, Bento Gonçalves, RS, v. 7, n. 2, p. e3005, 2021. DOI: 10.35819/remat2021v7i2id5193. Disponível em: https://periodicos.ifrs.edu.br/index.php/REMAT/article/view/5193. Acesso em: 22 jul. 2024.

Issue

Section

Mathematics