On the spectral theory of pseudo-differential elliptic boundary problems
On the super-approximation property of Galerkin's method with finite elements.
Opérateurs intégraux de Fourier et le problème de la dérivée oblique
Parameter-elliptic and parabolic pseudodifferential boundary problems in global Lp Sobolev spaces.
Parbolic pseudo-differential initial-boundary value problems.
Problèmes paraboliques et opérateurs pseudo-différentiels
Prolongement méromorphe de la matrice de diffusion pour les problèmes à corps à longue portée
Propagation des ondes dans les dièdres
Propagation des ondes dans les variétés à coins
Propagation of singularities for linear partial differential equations and reflections at a boundary
Propagation, reflection and refraction of singularities for a hyperbolic transmission problem in two adjacent angular regions
Properties of normal boundary problems for elliptic even-order systems
Pseudodifferential operators and Hardy kernels on
Pseudodifferenziali definiti su aperti di una cosfera fibrata
Régularité microlocale pour des problèmes aux limites non linéaires
Regularity for Signorini's Problem in linear eleasticity.
Remarks on Gårding inequalities for differential operators
Classical Gårding inequalities such as those of Hörmander, Hörmander-Melin or Fefferman-Phong are proved by pseudo-differential methods which do not allow to keep a good control on the supports of the functions under study nor on the smoothness of the coefficients of the operator. In this paper, we show by very simple calculations that in certain special situations, the results that can be obtained directly are much better than those expected thanks to the general theory.
Singularités des solutions d'équations d'ondes semi-linéaires
Spectral asymptotics for multi-quasi-elliptic operators in
Spline qualocation methods for boundary integral equtions.