2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/114037In this paper we apply techniques of spherical harmonic analysis to prove a local limit theorem, a rate of escape theorem, and a central limit theorem for isotropic random walks on arbitrary thick regular affine buildings of irreducible type.To appear in Annales de l'Institut FourierProbability20E42; 60G50; 33D52text