Mathématique-Physique

Oussama Landoulsi: Asymptotic dynamics of the nonlinear Schrödinger equation in the exterior of an obstacle

Europe/Paris
séminaire uniquement en ligne

séminaire uniquement en ligne

Description

In this talk, we will study of the influence of the underlying space geometry on the asymptotic dynamics of the nonlinear Schrödinger (NLS) equation. We will consider the focusing NLS equation in the exterior of a smooth, compact, and convex obstacle with Dirichlet boundary conditions. We will study the asymptotic behavior of the solution for large times and finite time. We prove the existence of these 3 types of solutions: Solitary wave solutions (solitons), blow-up solutions (solutions with finite time of existence), and scattering solutions (global and behaving asymptotically as linear solutions), for the NLS equation in the exterior of a convex obstacle.