English

Character correspondeces in solvable groups with a self-normalizing Sylow subgroup

Representation Theory 2019-09-10 v1

Abstract

In 1973, I. M. Isaacs described a correspondence between characters of degree not divisible by a fixed prime pp of a finite solvable group GG and those of the normalizer of Sylow pp-subgroup of GG, whenever the index of the normalizer in GG is odd. This correspondence is natural in the sense that an algorithm is provided to compute it, and the result of the application of the algorithm does not depend on choices made. Later on, for pp-solvable groups with self-normalizing Sylow pp-subgroup, G. Navarro showed that every irreducible character of degree not divisible by pp has a unique linear constituent when restricted to a Sylow pp-subgroup. Furthermore, the process of choosing the unique linear constituent of the restriction defines a bijection. Navarro's bijection is obviously natural in the sense described above. We show that these two correspondences are the same under the intersection of the hypotheses.

Keywords

Cite

@article{arxiv.1909.03295,
  title  = {Character correspondeces in solvable groups with a self-normalizing Sylow subgroup},
  author = {Carolina Vallejo},
  journal= {arXiv preprint arXiv:1909.03295},
  year   = {2019}
}
R2 v1 2026-06-23T11:08:36.710Z