Spectral analysis and synthesis
Spectral analysis for differential operators with singularities.
Spectral analysis of an operator associated with linear functional differential equations and its applications.
Spectral Properties of a Linear Operator Connected with Solutions of Linear Differential Equations in Banach Spaces.
Spectral properties of general self-adjoint, even order differential operators
Spectral properties of the Klein–Gordon -wave equation with spectral parameter-dependent boundary condition.
Spectral theory and Cauchy problems on Lp spaces.
Spectral Theory of the Dirac Operator.
Spectrum of a differential operator with periodic generalized potential.
Strong resonant tunneling, level repulsion and spectral type for one-dimensional adiabatic quasi-periodic Schrödinger operators
Sturm-Liouville operator with general boundary conditions.
Sur le théorème de l’indice des équations différentielles -adiques
Sur les injections entre espaces de Sobolev et espaces d'Orlicz et application au comportement a l'infini pour des équations des ondes semi-linéaires
Sur l'intégration directe des équations d'évolution 2
Sur un opérateur différentiel général
Symmetric subspaces related to certain eigenvalue problems