2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/145673We introduce and study the restricted volume of a divisor along a subvariety. Our main result is a description of the irreducible components of the augmented base locus by the vanishing of the restricted volume.Latex, 38 pages; v.2: final version. To appear in the American Journal of MathematicsAlgebraic Geometry14C20 (Primary) 14E15, 14E05 (Secondary)text