Masaya Maeda   
NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS 72(3-4) 2100-2113 2010年2月 [査読有り]
We prove that every bound state of the nonlinear Schrodinger equation (NLS) with Morse index equal to two, with d(2)/d omega(2) (E(phi(omega)) + omega Q(phi(omega))) > 0, is orbitally unstable. We apply this result to two particular cases. One ...