2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/141738Notes for a one semester course. The notes contain a description of compact three dimensional Seifert fibered spaces and a classification up to homeomorphism of compact three dimensional Seifert fibered spaces with non-empty boundary.162 pages, 8 figuresGeometric TopologyAlgebraic Topology57N10Seifert Fibered Spaces: Notes for a course given in the Spring of 1993text