3 papers
math.GR2026
Linking conjugacy classes and minimal invariant characters of normal subgroups
MarÃa José Felipe, Iris Gilabert, Lucia Sanus
Let be a finite group and a normal subgroup of . We report on recent results concerning minimal -invariant characters of (which are the sums of the characters on…
math.GR2026
On degrees of minimal invariant characters
MarÃa José Felipe, Iris Gilabert, Lucia Sanus
It is well known that finite groups with exactly two character degrees have an abelian derived subgroup and, consequently, are solvable. Let be a finite group and a normal…
math.GR2025
On a character correspondence associated to -projectors
MarÃa José Felipe, Iris Gilabert, Lucia Sanus
We study the conditions under which the head characters of a finite solvable group, as defined by I. M. Isaacs, behave well with respect to restriction. We also determine the inter…