Small solutions of nonlinear Schrödinger equations near first excited states

Details Small solutions of nonlinear Schrödinger equations near first excited states Small solutions of nonlinear Schrödinger equations near first excited states

2010-08-20

arxiv.org/abs/1008.3581v1

Mathematics

Analysis of PDEs

Scientific paper

Consider a nonlinear Schr\"odinger equation in $R^3$ whose linear part has three or more eigenvalues satisfying some resonance conditions. Solutions which are initially small in $H^1 \cap L^1(R^3)$ and inside a neighborhood of the first excited state family are shown to converge to either a first excited state or a ground state at time infinity. An essential part of our analysis is on the linear and nonlinear estimates near nonlinear excited states, around which the linearized operators have eigenvalues with nonzero real parts and their corresponding eigenfunctions are not uniformly localized in space.

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