English

Toric-friendly groups

Algebraic Geometry 2021-01-05 v4 Group Theory

Abstract

Let G be a connected linear algebraic group over a field k. We say that G is toric-friendly if for any field extension K/k and any maximal K-torus T in G the group G(K) has only one orbit in (G/T)(K). Our main result is a classification of semisimple (and under certain assumptions on k, of connected) toric-friendly groups.

Keywords

Cite

@article{arxiv.1003.5894,
  title  = {Toric-friendly groups},
  author = {Mikhail Borovoi and Zinovy Reichstein},
  journal= {arXiv preprint arXiv:1003.5894},
  year   = {2021}
}

Comments

16 pages. Shortened

R2 v1 2026-06-21T15:04:40.766Z