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Birational rigidity of $G$-del Pezzo threefolds of degree 2 (2212.03653v1)
Published 7 Dec 2022 in math.AG
Abstract: In this paper we classify nodal rational non-$\mathbb{Q}$-factorial del Pezzo threefolds of degree 2 which can be $G$-birationally rigid for some subgroup $G\subset \operatorname{Aut}(X)$.
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