2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/63741We study the projective normality of a linearly normal special scroll R of degree d and speciality i over a smooth curve X of genus g. We relate it with the Clifford index of the base curve X. If d>=4g-2i-Cliff(X)+1, i>=3 and R is smooth, we prove that the projective normality of the scroll is equivalent to the projective normality of its directrix curve of minimum degree.7 pagesAlgebraic GeometryPrimary, 14J26; secondary, 14H25,14H45. 14H45text