Abstract
Criteria for the flexibility, rigidity, and almost rigidity of nonnormal affine toric varieties are obtained. For rigid and almost rigid toric varieties, automorphism groups are explicitly calculated.
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Acknowledgments
The authors thank I. V. Arzhantsev for useful discussions.
Funding
This work was supported by the Russian Science Foundation under grant 19-11-00172.
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Translated from Matematicheskie Zametki, 2021, Vol. 110, pp. 837–855 https://doi.org/10.4213/mzm12960.
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Boldyrev, I.A., Gaifullin, S.A. Automorphisms of Nonnormal Toric Varieties. Math Notes 110, 872–886 (2021). https://doi.org/10.1134/S0001434621110237
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DOI: https://doi.org/10.1134/S0001434621110237