Laplacien hypoelliptique et cohomologie de Bott–Chern

Jean-Michel Bismut

doi:10.1016/j.crma.2010.12.003

Géométrie différentielle

Laplacien hypoelliptique et cohomologie de Bott–Chern

Présenté par : Jean-Michel Bismut

Jean-Michel Bismut ¹

¹ Département de mathématique, université Paris-Sud, bâtiment 425, 91405 Orsay cedex, France

Comptes Rendus. Mathématique, Volume 349 (2011) no. 1-2, pp. 75-80.

Résumé (VO)
Abstract

Soit $p : M \to S$ une submersion propre de variétés complexes, soit F un fibré vectoriel holomorphe sur M. Quand $R^{\cdot} p_{⁎} F$ est localement libre, on établit un théorème de Riemann–Roch–Grothendieck en cohomologie de Bott–Chern. Quand M est munie d'une $(1, 1)$ forme $\bar{\partial} \partial$ fermée induisant une métrique Hermitienne le long des fibre, la preuve résulte d'une modification convenable des superconnexions elliptiques. Dans le cas général, on construit une version exotique des superconnexions hypoelliptiques que nous avons introduites dans des travaux antérieurs.

Let $p : M \to S$ be a proper submersion of complex manifolds, and let F be a holomorphic vector bundle on M. When $R^{\cdot} p_{⁎} F$ is locally free, we establish a Riemann–Roch–Grothendieck theorem in Bott–Chern cohomology. When M is equipped with a $\bar{\partial} \partial$ -closed $(1, 1)$ form inducing a Hermitian metric along the fibres, the proof is obtained by using elliptic superconnections. In the general case, we construct an exotic version of the hypoelliptic superconnections which we introduced in previous work.

Reçu le : 2010-12-07
Publié le : 2010-12-23

DOI : 10.1016/j.crma.2010.12.003

Affiliations des auteurs :

Jean-Michel Bismut ¹

¹ Département de mathématique, université Paris-Sud, bâtiment 425, 91405 Orsay cedex, France

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Jean-Michel Bismut. Laplacien hypoelliptique et cohomologie de Bott–Chern. Comptes Rendus. Mathématique, Volume 349 (2011) no. 1-2, pp. 75-80. doi : 10.1016/j.crma.2010.12.003. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.1016/j.crma.2010.12.003/

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Cité par 6 documents. Sources : Crossref, zbMATH

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