no. 6
Métriques riemanniennes holomorphes en petite dimension
Dumitrescu, Sorin1
1 Université Paris-Sud, Mathématiques, Bâtiment 425, 91405 Orsay cedex (France)
Annales de l'Institut Fourier, Tome 51 (2001) no. 6, pp. 1663-1690.

Nous étudions les métriques riemanniennes holomorphes sur les variétés complexes compactes de dimension 3. Nous montrons que, contrairement au cas réel, une métrique riemannienne holomorphe possède un “grand” pseudo-groupe d’isométries locales. Ceci implique qu’une telle métrique n’existe pas sur les variétés complexes compactes simplement connexes de dimension 3.

We study holomorphic Riemannian metrics on compact complex threefolds. We show that, contrary to the situation in the real domain, a holomorphic Riemannian metric admits a "big" pseudogroup of local isometries. It follows that compact complex simply connected threefolds do not admit any holomorphic Riemannian metric.

DOI : 10.5802/aif.1870
Classification : 53B21, 53C56, 53A55
Mot clés : variétés complexes, métriques riemanniennes holomorphes, théorie algébrique des invariants, pseudo-groupe d'isométries locales
Keywords: complex manifolds, holomorphic riemannian metrics, algebraic theory of invariants, pseudogroup of local isometries
Dumitrescu, Sorin 1

1 Université Paris-Sud, Mathématiques, Bâtiment 425, 91405 Orsay cedex (France) 
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Dumitrescu, Sorin. Métriques riemanniennes holomorphes en petite dimension. Annales de l'Institut Fourier, Tome 51 (2001) no. 6, pp. 1663-1690. doi : 10.5802/aif.1870. http://www.numdam.org/articles/10.5802/aif.1870/

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