2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/62738In this paper we prove the existence of purely log terminal blow-up for Kawamata log terminal singularity and obtain the criterion for a singularity to be weakly exceptional in terms of the exceptional divisor of plt blow-up.7 pages, Latex2eAlgebraic Geometry14E30text