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This article is cited in 8 scientific papers (total in 8 papers)
Birational automorphisms of a three-dimensional double quadric with an elementary singularity
M. M. Grinenko Steklov Mathematical Institute, Russian Academy of Sciences
Abstract:
It is proved that the group of birational automorphisms of a three-dimensional double quadric with a singular point arising from a double point on the branch divisor is a semidirect product of the free group generated by birational involutions of a special form and the group of regular automorphisms. The proof is based on the method of 'untwisting' maximal singularities of linear systems.
Received: 17.02.1997
Citation:
M. M. Grinenko, “Birational automorphisms of a three-dimensional double quadric with an elementary singularity”, Mat. Sb., 189:1 (1998), 101–118; Sb. Math., 189:1 (1998), 97–114
Linking options:
https://www.mathnet.ru/eng/sm294https://doi.org/10.1070/sm1998v189n01ABEH000294 https://www.mathnet.ru/eng/sm/v189/i1/p101
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Abstract page: | 337 | Russian version PDF: | 176 | English version PDF: | 4 | References: | 76 | First page: | 2 |
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