2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/72210We present a point of view on results of the paper of Geronimo and Johnson [Comm. Math, Phys. 193 (1998)] that allow infinitely dimensional generalization up to the case when spectrum is supported on a Cantor set of positive Lebesgue measure.Spectral TheoryMathematical Physicstext