KAM for the Non-Linear Schrödinger Equation

L. H. Eliasson, S. B. Kuksin

We consider the $d$-dimensional nonlinear Schrödinger equation under periodic boundary conditions: $-i\dot u=-Δu+V(x)*u+\ep \frac{\p F}{\p \bar u}(x,u,\bar u), \quad u=u(t,x), x\in…