(Co)-homologie d'intersection et faisceaux pervers
Central extensions and reciprocity laws
Théorie du corps de classes de Kato et revêtements abéliens de surfaces
L’auteur présente des applications élémentaires de la théorie du corps de classes de Kato et Parshin en dimensions 1 et 3 : calcul du conducteur d’une extension de Witt-Artin-Schreier d’un corps local de dimension 1, et étude des revêtements abéliens des surfaces.
Cyclic homology and equivariant theories
In this article, we present two possible extensions of the classical theory of equivariant cohomology. The first, due to P. Baum, R. MacPherson and the author, is called the “delocalized theory". We attempt to present it in very concrete form for a circle action on a smooth manifold. The second is the cyclic homology of the crossed- product algebra of the algebra of smooth functions on a manifold, by the convolution algebra of smooth functions on a Lie group, when such Lie group act on the manifold....
Propriétés de ramification à l'infini du groupe modulaire de Teichmüller. With an appendix in English by Ken Baclawski
Vecteurs distributions H-Invariants pour les séries principales généralisées d'espaces symetriques reductifs et prolongement meromorphe d'intégrales d'Eisenstein.
Central extensions of reductive groups by
Differential Operators on Homogeneous Spaces. I. Irreducibility of the Associated Variety for Annihilators of Induced Modules.
Differential operators on homogeneous spaces. II : relative enveloping algebras
Springer's Weyl Group Representations Through Characteristc Classes of Cone Bundles.
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