2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/114039We prove existence results of complex-valued solutions for a semilinear Schrödinger equation with critical growth under the perturbation of an external electromagnetic field. Solutions are found via an abstract perturbation result in critical point theory.To appearAnalysis of PDEs35J10; 35J20; 35Q55text