On a theorem of J. Peetre
On linear functions on the sphere
On normal forms of Laplacian and its iterations in harmonic spaces
On Schrödinger maps from to
We prove an estimate for the difference of two solutions of the Schrödinger map equation for maps from to This estimate yields some continuity properties of the flow map for the topology of , provided one takes its quotient by the continuous group action of given by translations. We also prove that without taking this quotient, for any the flow map at time is discontinuous as a map from , equipped with the weak topology of to the space of distributions The argument relies in an essential...
On the absence of Poincaré lemma for some systems of partial differential equations
On the Wave Equation on a Compact Riemannian Manifold withour Conjugate Points.
Opérateurs différentiels bi-invariants
Opérateurs différentiels bi-invariants sur un groupe de Lie
Opérateurs différentiels invariants sur un groupe de Lie
Oscillatory Integrals and the Method of Stationary Phase in Infinitely Many Dimensions, with Applications to the Classical Limit of Quantum Mechanics. I.
Paramétrix de l'équation des ondes et intégrales sur l'espace des chemins
Periodic solutions of some linear systems of differential equations.
Problème de Cauchy microdifférentiel
Prolongements d'équations différentielles linéaires. III. La suite exacte de cohomologie de Spencer
Propriétés asymptotiques des vibrations des tores
Réduction d'un système microdifférentiel aux points génériques. I
Régularité lipschitzienne et solutions de l'équation des ondes sur une variété riemannienne compacte
Representations of the Heisenberg group of dimension 2n+1 on eigenspaces.
Schrödinger equation spectrum and Korteweg-De Vries type invariants
Some results on eigenfunctions on symmetric spaces and eigenspace representations.