2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/115163We study the selfsimilarity and the Gibbs properties of several measures defined on the product space $Ω\_r:=\{0,1,...,\break r-1\}^{\mathbb N}$. This space can be identified with the interval $[0,1]$ by means of the numeration in base $r$. The last section is devoted to the Bernoulli convolution in base $β={1+\sqrt5\over2}$, called the Erd\H os measure, and its analogue in base $-β=-{1+\sqrt5\over2}$, that we study by means of a suitable system of numeration.Number Theory28A12; 11A55; 11A63; 11A67text