A. Martínez-Pastor

collaborators

2 papers

math.GR2018

Zeros of irreducible characters in factorised groups

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

An element $g$ of a finite group $G$ is said to be vanishing in $G$ if there exists an irreducible character $χ$ of $G$ such that $χ (g) = 0$ ; in this case, $g$ is also called a zero…

math.GR2017

Prime power indices in factorised groups

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

Let the group $G = A B$ be the product of the subgroups $A$ and $B$ . We determine some structural properties of $G$ when the $p$ -elements in $A \cup B$ have prime power indices in $G…