On the orbital stability for a class of nonautonomous NLS

Details On the orbital stability for a class of nonautonomous NLS On the orbital stability for a class of nonautonomous NLS

2009-01-15

arxiv.org/abs/0901.2233v1

Physics

Mathematical Physics

Scientific paper

Following the original approach introduced by T. Cazenave and P.L. Lions in \cite{CaLi} we prove the existence and the orbital stability of standing waves for the following class of NLS: \label{intr1} i\partial_t u+ \Delta u - V(x) u + Q(x) u|u|^{p-2}=0, \hbox{} (t,x) \in \R\times \R^n, \hbox{} 2\lambda_0\}\in (0,\infty)$ for a suitable $\lambda_0>0$. The main point is the analysis of the compactness of minimiziang sequences to suitable constrained minimization problems related to \eqref{intr1} and \eqref{intr2}.

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