2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/75423Rational double points are the simplest surface singularities. In this essay we will be mainly concerned with the geometry of the exceptional set corresponding to the resolution of a rational double point. We will derive the classification of rational double points in terms of Dynkin diagrams.41 pages, several figures, part iii essayAlgebraic Geometry14B05text