2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/58821We give a spectral description of the semi-classical Schrodinger operator with a piecewise linear, complex valued potential. Moreover, using these results, we show how an arbitrarily small bounded perturbation of a non-self-adjoint operator can completely change the spectrum of the operator.17 pages, 3 figuresSpectral Theory47E05, 34L20, 34L40, 33C10, 34M40text