2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/144983We give a new proof of the Cobham's first theorem using ideas from symbolic dynamics and of the Cobham-Semenov theorem (in the primitive case) using ideas from tiling dynamics.24 pagesDynamical SystemsCombinatoricsCobham-Semenov theorem and $\NN^d$-subshiftstext