Strongly nonlinear degenerated elliptic unilateral problems via convergence of truncations.
Strongly nonlinear degenerated unilateral problems with data.
Subharmonic functions in sub-Riemannian settings
In this paper we furnish mean value characterizations for subharmonic functions related to linear second order partial differential operators with nonnegative characteristic form, possessing a well-behaved fundamental solution . These characterizations are based on suitable average operators on the level sets of . Asymptotic characterizations are also considered, extending classical results of Blaschke, Privaloff, Radó, Beckenbach, Reade and Saks. We analyze as well the notion of subharmonic function...
Sul comportamento asintotico della soluzione di un problema di radiazione
Sur des estimations des valeurs propres d'opérateurs elliptiques
Sur le comportement semi-classique de l'amplitude de diffusion d'un hamiltonien quantique
Sur l’opérateur