“…¿From a theoretical point of view, a number of physical properties has been studied in quasiperiodic structures. Among them we can cite the energy spectra of polaritons [5], phonons [6], electrons [7] and spin waves [8,9], as well as the magnetoresistance and magnetization curves of quasiperiodic thin films [10]. A quite interesting feature, common to all of these systems, is a self-similar pattern of their spectra.…”