We study the fields of values of the irreducible characters of a finite group of degree not divisible by a prime p. In the case where, we fully characterise these fields. In order to accomplish this, we generalise the main result of [ILNT] to higher irrationalities. We do the same for odd primes, except that in this case the analogous results hold modulo a simple-to-state conjecture on the character values of quasi-simple groups.
- 2020 Mathematics Subject Classification
ASJC Scopus subject areas
- Algebra and Number Theory
- Statistics and Probability
- Mathematical Physics
- Geometry and Topology
- Discrete Mathematics and Combinatorics