Remarque sur la cohomologie de l'algèbre de Lie des champs de vecteurs sur la sphère
Remarques sur les systèmes différentiels
Representations of étale Lie groupoids and modules over Hopf algebroids
The classical Serre-Swan's theorem defines an equivalence between the category of vector bundles and the category of finitely generated projective modules over the algebra of continuous functions on some compact Hausdorff topological space. We extend these results to obtain a correspondence between the category of representations of an étale Lie groupoid and the category of modules over its Hopf algebroid that are of finite type and of constant rank. Both of these constructions are functorially...
Rigidity of homogeneous contact manifolds under Fano deformation.