English

Horospherical subgroups in positive characteristic

Algebraic Geometry 2025-09-19 v1

Abstract

We investigate horospherical homogeneous spaces--a class of spherical homogeneous spaces encompassing both flag varieties and algebraic tori--over fields of characteristic p>0, and establish their complete classification for p>2.

Keywords

Cite

@article{arxiv.2509.15003,
  title  = {Horospherical subgroups in positive characteristic},
  author = {Matilde Maccan and Ronan Terpereau},
  journal= {arXiv preprint arXiv:2509.15003},
  year   = {2025}
}

Comments

21 pages, comments are welcome!

R2 v1 2026-07-01T05:43:59.372Z