Radial and non-radial multiple solutions to a general mixed dispersion NLS equation

Pietro d'Avenia, Alessio Pomponio, Jacopo Schino

We study the following nonlinear Schrödinger equation with a forth order dispersion term \[ Δ^2u-βΔu=g(u) \quad \text{in } \mathbb{R}^N \] in the positive and zero mass regimes: in…