Heegaard splittings of Seifert manifolds without an orientable base space
Abstract
Description
We 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 published
20 pages, 3 figures. Removed section about I-bundles as results had already been published