Geodesic
Semisimple algebraic groups which are split over a quadratic extension
Izvestiya. Mathematics, Tome 5 (1971) no. 1, pp. 57-72 
B. Yu. Weisfeiler. Semisimple algebraic groups which are split over a quadratic extension. Izvestiya. Mathematics, Tome 5 (1971) no. 1, pp. 57-72. http://geodesic.mathdoc.fr/item/IM2_1971_5_1_a3/
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Voir la notice de l'article provenant de la source Math-Net.Ru

We consider algebraic groups defined over a field $k$ and containing a maximal torus $T$ which is defined and anisotropic over $k$ and split over a given quadratic extension $K$ of $k$. We study certain structural features of such groups, and the results obtained are used to investigate the behavior of these groups over special fields.

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