Homologie des complexes de formes différentielles d'ordre supérieur
Homotopy for small multifunctions
Homotopy-equivariance.
Ideals of the Lie algebras of vector fields
Implicit quasilinear differential systems: A geometrical approach.
Independent Rigid Secondary Classes for Holomorphic Foliations.
Isomorphisms and Ideals of the Lie Algebras of Vector Fields.
Isomorphisms of Lie algebras of vector fields
-theory of oriented Grassmann manifolds
Le problème de la finitude du nombre de cycles limites
Les fibrés uniformes de rang 3 sur P2 (C) sont homogènes.
Local Triviality of the Restriction Map for Embeddings.
Maximal ideals in the Lie algebra of vector fields
Modular Classes of Q-Manifolds, Part II: Riemannian Structures Odd Killing Vectors Fields
We define and make an initial study of (even) Riemannian supermanifolds equipped with a homological vector field that is also a Killing vector field. We refer to such supermanifolds as Riemannian Q-manifolds. We show that such Q-manifolds are unimodular, i.e., come equipped with a Q-invariant Berezin volume.
Multifoliations on Open Manifolds.
Multiplicity of a foliation on projective spaces along an integral curve.
We compute the global multiplicity of a 1-dimensional foliation along an integral curve in projective spaces. We give a bound in the way of Poincaré problem for a complete intersection curves. In the projective plane, this bound give us a bound of the degree of non irreducible integral curves in function of the degree of the foliation.
Nilpotent Lie algebras of vectorfields.
Note on a generalization of the generalized vector field problem
On 2-distributions in 8-dimensional vector bundles over 8-complexes
It is shown that the -index of a 2-distribution in an 8-dimensional spin vector bundle over an 8-complex is independent of the 2-distribution. Necessary and sufficient conditions for the existence of 2-distributions in such vector bundles are given in terms of characteristic classes and a certain secondary cohomology operation. In some cases this operation is computed.
On 3-dimensional Lie algebras of vector fields