Geodesic
Birational rigidity of $G$-del~Pezzo threefolds of degree~$2$
Sbornik. Mathematics, Tome 214 (2023) no. 6, pp. 757-792

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We classify nodal rational non-$\mathbb{Q}$-factorial del Pezzo threefolds of degree $2$ which can be $G$-birationally rigid for some subgroup $G\subset\operatorname{Aut}(X)$. Bibliography: 29 titles.
Keywords: del Pezzo threefolds, Cremona group, birational rigidity. 
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     title = {Birational rigidity of $G${-del~Pezzo} threefolds of degree~$2$},
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A. A. Avilov. Birational rigidity of $G$-del~Pezzo threefolds of degree~$2$. Sbornik. Mathematics, Tome 214 (2023) no. 6, pp. 757-792. http://geodesic.mathdoc.fr/item/SM_2023_214_6_a0/