On log K-stability for asymptotically log Fano varieties
Annales de la Faculté des sciences de Toulouse : Mathématiques, Serie 6, Volume 25 (2016) no. 5, pp. 1013-1024.

The notion of asymptotically log Fano varieties was given by Cheltsov and Rubinstein. We show that, if an asymptotically log Fano variety (X,D) satisfies that D is irreducible and -K X -D is big, then X does not admit Kähler-Einstein edge metrics with angle 2πβ along D for any sufficiently small positive rational number β. This gives an affirmative answer to a conjecture of Cheltsov and Rubinstein.

La notion de variété asymptotiquement log Fano a été proposée par Cheltsov et Rubinstein. Dans ce travail on montre que, si une variété asymptotiquement log Fano (X,D) vérifie que D est irréductible et -K X -D est big, alors X n’admet pas de métrique Kähler-Einstein conique d’angle 2πβ sur D, quelque soit l’angle rationnel positif β suffisamment petit. Ce résultat donne une réponse positive à une conjecture de Cheltsov et Rubinstein.

Published online:
DOI: 10.5802/afst.1520

Kento Fujita 1

1 Research Institute for Mathematical Sciences, Kyoto University, Kyoto 606-8502, Japan
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Kento Fujita. On log K-stability for asymptotically log Fano varieties. Annales de la Faculté des sciences de Toulouse : Mathématiques, Serie 6, Volume 25 (2016) no. 5, pp. 1013-1024. doi : 10.5802/afst.1520. https://afst.centre-mersenne.org/articles/10.5802/afst.1520/

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