Thomas Breuer

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20242026

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math.GR2024

Zeros of $S$ -characters

Thomas Breuer, Michael Joswig, Gunter Malle

The concept of $S$ -characters of finite groups was introduced by Zhmud' as a generalisation of transitive permutation characters. Any non-trivial $S$ -character takes a zero value o…

math.GR2024

On Frobenius graphs of diameter 3 for finite groups

Thomas Breuer, László Héthelyi, Erzsébet Horváth +1

For a subgroup $H$ of a finite group $G$ , the Frobenius graph $Γ (G, H)$ records the constituents of the restrictions to $H$ of the irreducible characters of $G$ . We investigate whe…

math.GR2024

Finite groups whose real irreducible representations have unique dimensions

Thomas Breuer, Frank Calegari, Silvio Dolfi +2

We determine the finite groups whose real irreducible representations have different degrees.

Zeros of S-characters

On Frobenius graphs of diameter 3 for finite groups

Finite groups whose real irreducible representations have unique dimensions

Zeros of $S$ -characters