publiée le 7 juillet 2026
Boundary conditions and non kinematic free boundaries for wave-structure interactions
De David Lannes
De Omar Mohsen
Apparaît dans la collection : Group operator algebras and Non commutative geometry / Algèbres d'opérateurs de groupes et Geometrie non commutative
We give a brief introduction to hypoelliptic differential operators. We present Helffer and Nourrigat's theorem as well as some of Hörmander's theorems on hypoellipticity.