Mark L. Lewis
Published 2016-09-07Version 1
Let $\pi$ be a set of primes, and let $G$ be a finite $\pi$-separable group. We consider the Isaacs ${\rm B}_\pi$-characters. We show that if $N$ is a normal subgroup of $G$, then ${\rm B}_\pi (G/N) = {\rm Irr} (G/N) \cap {\rm B}_\pi (G)$.
On $G$-character tables for normal subgroups
$p$-groups with small number of character degrees and their normal subgroups
Zeros of irreducible characters lying in a normal subgroup
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