Geodesic
Birational automorphisms of Severi-Brauer surfaces
Sbornik. Mathematics, Tome 211 (2020) no. 3, pp. 466-480

Voir la notice de l'article provenant de la source Math-Net.Ru

We prove that a finite group acting by birational automorphisms of a nontrivial Severi-Brauer surface over a field of characteristic zero contains a normal abelian subgroup of index at most $3$. Also, we find an explicit bound for the orders of such finite groups in the case when the base field contains all roots of $1$. Bibliography: 25 titles.
Keywords: Severi-Brauer surface, group of birational automorphisms. 
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     author = {{\CYRS}. A. Shramov},
     title = {Birational automorphisms of {Severi-Brauer} surfaces},
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     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2020_211_3_a5/}
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С. A. Shramov. Birational automorphisms of Severi-Brauer surfaces. Sbornik. Mathematics, Tome 211 (2020) no. 3, pp. 466-480. http://geodesic.mathdoc.fr/item/SM_2020_211_3_a5/