3 papers
math.GR2026
Linking conjugacy classes and minimal invariant characters of normal subgroups
María 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
María 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.GR2024
On -character tables for normal subgroups
María José Felipe, María Dolores Pérez-Ramos, Víctor Sotomayor
Let be a normal subgroup of a finite group . From a result due to Brauer, it can be derived that the character table of contains square submatrices which are induced by…