On a generalized Calabi-Yau equation
Dealing with the generalized Calabi-Yau equation proposed by Gromov on closed almost-Kähler manifolds, we extend to arbitrary dimension a non-existence result proved in complex dimension .
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.