Character degrees in $2$-blocks of $\mathfrak{S}_n$ and $\mathfrak{A}_n$
Representation Theory
2026-01-21 v1
Abstract
Let be an odd prime. We show that for sufficiently large , every -block of and contains an ordinary irreducible character of degree divisible by . For almost all -blocks of , we classify whether it contains a rational valued ordinary irreducible character of degree divisible by .
Cite
@article{arxiv.2601.13152,
title = {Character degrees in $2$-blocks of $\mathfrak{S}_n$ and $\mathfrak{A}_n$},
author = {Bim Gustavsson},
journal= {arXiv preprint arXiv:2601.13152},
year = {2026}
}
Comments
11 pages, 3 figures