2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/147062We define the Seshadri constant of a space curve and consider ways to estimate it. We then show that it governs the gonality of the curve. We use an argument based on Bogomolov's instability theorem on a threefold. The same methods are then applied to the study of the behaviour of a stable vector bundle on P^3 under restriction to curves and surfaces.36 pages, amslatexAlgebraic Geometrytext