Heegaard splittings of Seifert manifolds without an orientable base space

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/123413We use Heath's, Moriah's and Schultens's results to prove that irreducible Heegaard splittings of orientable Seifert manifolds with nonorientable base space are either vertical or horizontal.20 pages, 3 figures. Removed section about I-bundles as results had already been publishedGeometric Topology57N10Heegaard splittings of Seifert manifolds without an orientable base spacetext