2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/138020We describe how the Deaconu-Renault groupoid may be used in the study of wavelets and fractals.To appear in "Group representations, ergodic theory, and mathematical physics: A tribute to George W. Mackey", the proceedings of the AMS special session dedicated to the memory of George W. Mackey at the January 2007 AMS meetingOperator Algebras46L89text