2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/65605This is a brief survey which reviews some traditional themes in harmonic analysis and some more recent areas of activity, connected to "analysis on fractals" in particular.to appear, Gazette des Mathematiciens, Societe Mathematique de France, and maybe even in FrenchClassical Analysis and ODEstext