Reducibility and nonlinear stability for an NLS equation on T^2

Speaker. Michela Procesi
Date. 14.03.23 at 2:00 pm

Abstract. The problem of existence and linear stability of invariant tori for the NLS equation on T^2 has been studied by various authors. Of course the next step is to go to nonlinear stability. I shall discuss this question on the simplified model of a non-resonant quasi-periodic in time NLS equation. Joint work with E.Haus, B. Langella, A. Maspero