2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/58463The decay of a soliton in a trapped state inside a well is shown numerically. Bound states of a kink in an attractive well, both centered and off center are found. Their stability is studied. Unstable soliton solutions inside a repulsive barrier are also found.Latex format, 5 figuresMathematical PhysicsHigh Energy Physics - PhenomenologyHigh Energy Physics - TheoryNuclear TheoryQuantum Physicstext