$M$-groups and Codegrees; $M_{p}$-groups and Brauer Character Degrees

Fuente: arXiv
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Autori principali: Chen, Xiaoyou, Lewis, Mark L.
Natura: Preprint
Pubblicazione: 2025
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author Chen, Xiaoyou
Lewis, Mark L.
author_facet Chen, Xiaoyou
Lewis, Mark L.
contents Let $G$ be a finite group and $p$ be a prime. We prove that if $G$ has three codegrees, then $G$ is an $M$-group. We prove for some prime $p$ that if every irreducible Brauer character of $G$ is a prime, then for every normal subgroup $N$ of $G$ either $G/N$ or $N$ is an $M_p$-group.
format Preprint
id arxiv_https___arxiv_org_abs_2503_06878
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle $M$-groups and Codegrees; $M_{p}$-groups and Brauer Character Degrees
Chen, Xiaoyou
Lewis, Mark L.
Group Theory
Primary 20C15, Secondary 20C20
Let $G$ be a finite group and $p$ be a prime. We prove that if $G$ has three codegrees, then $G$ is an $M$-group. We prove for some prime $p$ that if every irreducible Brauer character of $G$ is a prime, then for every normal subgroup $N$ of $G$ either $G/N$ or $N$ is an $M_p$-group.
title $M$-groups and Codegrees; $M_{p}$-groups and Brauer Character Degrees
topic Group Theory
Primary 20C15, Secondary 20C20
url https://arxiv.org/abs/2503.06878