2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/66644We study the nonlinear Schrodinger equations with a linear potential. A change of variables makes it possible to deduce results concerning finite time blow up and scattering theory from the case with no potential.References added, final version to appear in Hokkaido Math. JAnalysis of PDEsMathematical Physics35Q55, 35B05, 35P25text