Constrained energy minimization and orbital stability for the NLS equation on a star graph

R. Adami, C. Cacciapuoti, D. Finco +1

We consider a nonlinear Schrödinger equation with focusing nonlinearity of power type on a star graph $\mathcal{G}$, written as $i{\partial }_t\Psi (t)=H\Psi (t)-|\Psi (t){|}^{2\mu }\Psi (t)$, wh…