Multiple Solitary Waves for Non-Homogeneous Schrödinger–Maxwell Equations

The aim of this paper is investigating the existence of standing waves which are solutions of a nonlinear Schr?dinger equation coupled with Maxwell’s equations when a non-homogeneous term breaks the symmetry of the associated functional. Dedicated to the memory of Professor Aldo Cossu This work was supported by M.I.U.R. (research funds ex 40% and 60%).