Cosets of normal subgroups and powers of conjugacy classes
[EN] Let G be a finite group and let K=xG be the conjugacy class of an element x of G. In this paper, it is proved that if N is a normal subgroup of G such that the coset xN is the union of K and K-1 (the conjugacy class of the inverse of x), then N and the subgroup ¿K¿ are solvable. As an applicati...
| Authors: | , |
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| Format: | article |
| Publication Date: | 2021 |
| Country: | España |
| Institution: | Universitat Politècnica de València (UPV) |
| Repository: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Language: | English |
| OAI Identifier: | oai:riunet.upv.es:10251/189490 |
| Online Access: | https://riunet.upv.es/handle/10251/189490 |
| Access Level: | Open access |
| Keyword: | Characters Conjugacy classes Cosets of normal subgroups Powers of conjugacy classes MATEMATICA APLICADA |
| Summary: | [EN] Let G be a finite group and let K=xG be the conjugacy class of an element x of G. In this paper, it is proved that if N is a normal subgroup of G such that the coset xN is the union of K and K-1 (the conjugacy class of the inverse of x), then N and the subgroup ¿K¿ are solvable. As an application, we prove that if there exists a natural number n >= 2 such that Kn=K?K-1, then ¿K¿ is solvable. |
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