6533b871fe1ef96bd12d195a

RESEARCH PRODUCT

Irreducible characters of $3'$-degree of finite symmetric, general linear and unitary groups

Eugenio GiannelliJoan TentPham Huu Tiep

subject

Pure mathematicsAlgebra and Number TheoryCoprime integers010102 general mathematicsCharacter theorySylow theoremsField (mathematics)0102 computer and information sciencesAbsolute Galois group16. Peace & justice01 natural sciencesRepresentation theoryMathematics::Group TheoryCharacter (mathematics)010201 computation theory & mathematicsUnitary groupFOS: Mathematics0101 mathematicsRepresentation Theory (math.RT)Mathematics - Representation TheoryMathematics

description

Abstract Let G be a finite symmetric, general linear, or general unitary group defined over a field of characteristic coprime to 3. We construct a canonical correspondence between irreducible characters of degree coprime to 3 of G and those of N G ( P ) , where P is a Sylow 3-subgroup of G . Since our bijections commute with the action of the absolute Galois group over the rationals, we conclude that fields of values of character correspondents are the same.

https://dx.doi.org/10.48550/arxiv.1704.07579