English

Orbits of cuspidal types on $\textrm{GL}_{p}(\mathcal{O}_{F})$

Representation Theory 2022-11-08 v2

Abstract

Let FF be a non-Archimedean local field and let OF\mathcal{O}_{F} be its ring of integers. The orbit of an irreducible representation ρ\rho of GLn(OF)\mathrm{GL}_n(\mathcal{O}_F) is a conjugacy class in gln(OF)\mathfrak{gl}_n(\mathcal{O}_F) attached to ρ\rho by means of Clifford's theory. We give a description of orbits of cuspidal types on GLp(OF)\mathrm{GL}_{p}( \mathcal{O}_{F}), with pp prime. We determine which of them are regular and we provide an example which shows that the orbit of a representation does not always determine whether it is a cuspidal type or not.

Keywords

Cite

@article{arxiv.1911.12649,
  title  = {Orbits of cuspidal types on $\textrm{GL}_{p}(\mathcal{O}_{F})$},
  author = {Anna Szumowicz},
  journal= {arXiv preprint arXiv:1911.12649},
  year   = {2022}
}

Comments

26 pages, improved exposition