2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/72051We prove an approximation to an Ihara-formula for the zeta function of an arithmetic quotient of the Bruhat-Tits building of a p-adic PGL(3).LaTeX, 14 pages, 1 pictureNumber TheoryThe Ihara-Selberg zeta function for PGL(3) and Hecke operatorstext