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arXiv · 2204.03106

Torsors and stable equivariant birational geometry

Brendan Hassett·Yuri Tschinkel
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Abstract

We develop the formalism of universal torsors in equivariant birational geometry and apply it to produce new examples of nonbirational but stably birational actions of finite groups.

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Brendan Hassett, Yuri Tschinkel. 2022-04-06. Torsors and stable equivariant birational geometry. https://arxiv.org/abs/2204.03106

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