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Exemples de groupes semi-simples simplement connexes anisotropes contenant un sous-groupe unipotent

Exemples de groupes semi-simples simplement connexes anisotropes contenant un sous-groupe unipotent

We show that there are anisotropic groups of type G 2 (resp.F 4 , E 8 ) containing a non-trivial smooth unipotent subgroup over a suitable field of characteristic 2 (resp.3, 5).