Abstract
We classify three-dimensional singular cubic hypersurfaces with an action of a finite group G, which are not G-rational and have no birational structure of G-Mori fiber space with the base of positive dimension. Also we prove the \(\mathfrak {A}_{5}\)-birational superrigidity of the Segre cubic.
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Acknowledgements
The author is a Young Russian Mathematics award winner and would like to thank its sponsors and jury. The author also would like to thank Ivan Cheltsov, Yuri Prokhorov, Constantin Shramov and Andrey Trepalin for useful discussions and comments.
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This work is supported by the Russian Science Foundation under Grant No. 18-11-00121.
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Avilov, A. Automorphisms of singular three-dimensional cubic hypersurfaces. European Journal of Mathematics 4, 761–777 (2018). https://doi.org/10.1007/s40879-018-0253-x
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DOI: https://doi.org/10.1007/s40879-018-0253-x