English

Outer forms of type $A_2$ with infinite genus

Rings and Algebras 2023-05-03 v1 Algebraic Geometry

Abstract

Let GG be an absolutely almost simple algebraic group over a field KK. The genus genK(G){\bf gen}_K(G) of GG is the set of KK-isomorphism classes of KK-forms GG' of GG that have the same KK-isomorphism classes of maximal KK-tori as GG. We construct an example of outer forms of type A2A_2 with infinite genus.

Keywords

Cite

@article{arxiv.2305.01606,
  title  = {Outer forms of type $A_2$ with infinite genus},
  author = {Sergey V. Tikhonov},
  journal= {arXiv preprint arXiv:2305.01606},
  year   = {2023}
}
R2 v1 2026-06-28T10:23:42.921Z