The Weinstein conjecture in cotangent bundles and related results
The Weinstein Conjecture in P X Cl.
Théorie des groupoïdes symplectiques
Thom polynomials for open Whitney umbrellas of isotropic mappings
A smooth mapping of a smooth n-dimensional manifold L into a smooth 2n-dimensional symplectic manifold (M,ω) is called isotropic if f*ω vanishes. In the last ten years, the local theory of singularities of isotropic mappings has been rapidly developed by Arnol’d, Givental’ and several authors, while it seems that the global theory of their singularities has not been well studied except for the work of Givental’ [G1] in the case of dimension 2 (cf. [A], [Au], [I2], [I-O]). In the present paper,...
Topological Classification of Linear Endomorphisms.
Topology of vortices
Tores invariants des systèmes dynamiques hamiltoniens
Transition le long des chaînes de tores invariants pour les systèmes hamiltoniens analytiques
Transparent potentials and hamiltonian systems
Transversalities for Lagrange singularities of isotropic mappings of corank one
Transverse Structures to orbits in algebric groups
Travaux de Herman sur les tores invariants
Triple Collision in the Planar Isosceles Three Body Problem.
Two results on a class of Poisson structures on Lie groups.
Type des points fixes des difféomorphismes symplectiques de
Un indice di Morse medio per misure invarianti rispetto al flusso lagrangiano
Trattiamo sistemi lagrangiani su varietà, sia autonomi che periodici, e introduciamo un indice di Morse medio per misure invarianti, che generalizza l'indice medio delle orbite periodiche. Dimostriamo che, se lo spazio delle configurazioni è una varietà compatta con gruppo fondamentale finito, gli indici medi delle orbite periodiche sono densi in . Per sistemi periodici, deduciamo l'esistenza di particolari successioni di orbite chiuse, che convergono a misure invarianti di indice medio fissato....
Un principe de prolongement mis en défaut en géométrie symplectique
Un problème de disjonction par isotopie symplectique dans un fibré cotangent
Une cohomologie pour les algèbres de Lie de Poisson homogènes
Une structure symplectique sur R6 avec une sphère lagrangienne plongée et un champ de Liouville complet.