Geodesic
On extraction of transvections in overgroups of a non-split maximal torus
Vladikavkazskij matematičeskij žurnal, Tome 15 (2013) no. 1, pp. 14-17 
N. A. Dzhusoeva. On extraction of transvections in overgroups of a non-split maximal torus. Vladikavkazskij matematičeskij žurnal, Tome 15 (2013) no. 1, pp. 14-17. http://geodesic.mathdoc.fr/item/VMJ_2013_15_1_a1/
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Voir la notice de l'article provenant de la source Math-Net.Ru

Let $E(\sigma_{A})$ be a subgroup generated by all transvections of the net group $G(\sigma_A)$. Then $TE(\sigma_A)$ is also a group generated by the torus and the root subgroup items in the first column of the elementary group $E(\sigma_A)$.

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