Víctor Sotomayor

activity

20182022

most citedNon-solvable groups whose character degree graph has a cut-vertex. I

1 citations · 1 across the 3 of their papers we have counts for

collaborators

3 papers

math.GR2022★ 1 cited

Non-solvable groups whose character degree graph has a cut-vertex. I

Silvio Dolfi, Emanuele Pacifici, Lucia Sanus +1

Let G be a finite group. Denoting by cd(G) the set of degrees of the irreducible complex characters of G, we consider the character degree graph of G: this is the (simple undirecte…

math.GR2021

Finite groups whose prime graph on class sizes is a block square

Víctor Sotomayor

Let $G$ be a finite group, and let $Δ (G)$ be the prime graph built on its set of conjugacy class sizes: this is the (simple undirected) graph whose vertices are the prime numbers d…

math.GR2018

Products of groups and class sizes of $π$ -elements

M. J. Felipe, A. Martínez-Pastor, V. M. Ortiz-Sotomayor

We provide structural criteria for some finite factorised groups $G = A B$ when the conjugacy class sizes in $G$ of certain $π$ -elements in $A \cup B$ are either $π$ -numbers or $π^{'}$ -…

Non-solvable groups whose character degree graph has a cut-vertex. I

Finite groups whose prime graph on class sizes is a block square

Products of groups and class sizes of π-elements

Products of groups and class sizes of $π$ -elements