Metrics with cone singularities along normal crossing divisors and holomorphic tensor fields
[Métriques à singularités coniques le long de diviseurs à croisements normaux et champs de tenseurs holomorphes]
Campana, Frédéric ; Guenancia, Henri ; Păun, Mihai
Annales scientifiques de l'École Normale Supérieure, Tome 46 (2013), p. 879-916 / Harvested from Numdam
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Dans cet article, nous prouvons l'existence de métriques de Kähler-Einstein à courbure négative ayant des singularités coniques le long d'un diviseur à croisements normaux simples sur une variété kählérienne compacte, sous une hypothèse technique sur les angles des cones. Nous discutons également du cas des métriques de Kähler-Einstein à courbure strictement positive avec des singularités coniques. Nous en déduisons que les résultats classiques de Lichnerowicz et Kobayashi sur le parallélisme et l'annulation des champs de tenseurs holomorphes s'étendent à notre cadre.

We prove the existence of non-positively curved Kähler-Einstein metrics with cone singularities along a given simple normal crossing divisor of a compact Kähler manifold, under a technical condition on the cone angles, and we also discuss the case of positively-curved Kähler-Einstein metrics with cone singularities. As an application we extend to this setting classical results of Lichnerowicz and Kobayashi on the parallelism and vanishing of appropriate holomorphic tensor fields.

Publié le : 2013-01-01
DOI : https://doi.org/10.24033/asens.2205
Classification:  32Q05,  32Q10,  32Q15,  32Q20,  32U05,  32U15
Mots clés: métriques de kähler-Einstein, singularités coniques, tenseurs orbifoldes, équation de Monge-ampère 
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     author = {Campana, Fr\'ed\'eric and Guenancia, Henri and P\u aun, Mihai},
     title = {Metrics with cone singularities along normal crossing divisors and holomorphic tensor fields},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     volume = {46},
     year = {2013},
     pages = {879-916},
     doi = {10.24033/asens.2205},
     language = {en},
     url = {http://dml.mathdoc.fr/item/ASENS_2013_4_46_6_879_0}
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Campana, Frédéric; Guenancia, Henri; Păun, Mihai. Metrics with cone singularities along normal crossing divisors and holomorphic tensor fields. Annales scientifiques de l'École Normale Supérieure, Tome 46 (2013) pp. 879-916. doi : 10.24033/asens.2205. http://gdmltest.u-ga.fr/item/ASENS_2013_4_46_6_879_0/

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