2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/59867The classification of projective elliptic line scrolls with the description of their singular loci is given. In particular we recover Atiyah Theorem by using classical methods.Latex209; 31 pagesAlgebraic GeometryPrimary, 14J26; secondary, 14H25, 14H45text