2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/107121We consider the self-similar phase space with reduced fractal dimension $d$ being distributed within domain $0<d<1$ with spectrum $f(d)$. Related thermostatistics is shown to be governed by the Tsallis' formalism of the non-extensive statistics, where role of the non-additivity parameter plays inverted value ${\barτ}(q)\equiv 1/τ(q)>1$ of the multifractal function $τ(q)= qd(q)-f(d(q))$, being the specific heat, $q\in(1,\infty)$ is multifractal parameter. In this way, the equipartition law is shown to take place. Optimization of the multifractal spectrum $f(d)$ derives the relation between the statistical weight and the system complexity.8 pages, LaTeXStatistical Mechanicstext