$\mathfrak A_5$-equivariant geometry of quadric threefolds

Fuente: arXiv
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Autores principales: Pinardin, Antoine, Zhang, Zhijia
Formato: Preprint
Publicado: 2025
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author Pinardin, Antoine
Zhang, Zhijia
author_facet Pinardin, Antoine
Zhang, Zhijia
contents We classify $G$-Mori fibre spaces equivariantly birational to smooth quadric threefolds with fixed-point free actions of the alternating group $G=\mathfrak A_5$. We deduce that such quadric threefolds are $G$-solid and the $G$-actions on them are not projectively linearizable.
format Preprint
id arxiv_https___arxiv_org_abs_2508_11496
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle $\mathfrak A_5$-equivariant geometry of quadric threefolds
Pinardin, Antoine
Zhang, Zhijia
Algebraic Geometry
We classify $G$-Mori fibre spaces equivariantly birational to smooth quadric threefolds with fixed-point free actions of the alternating group $G=\mathfrak A_5$. We deduce that such quadric threefolds are $G$-solid and the $G$-actions on them are not projectively linearizable.
title $\mathfrak A_5$-equivariant geometry of quadric threefolds
topic Algebraic Geometry
url https://arxiv.org/abs/2508.11496