Abstract
Let [Formula: see text] be an ordinary fiber of a Seifert fibering of [Formula: see text] with two exceptional fibers of order [Formula: see text]. We show that any Seifert manifold with Euler number zero is a branched covering of [Formula: see text] with branching [Formula: see text] if [Formula: see text]. We compute the Seifert invariants of the Abelian covers of [Formula: see text] branched along a [Formula: see text]. We also show that [Formula: see text], a non-trivial torus knot in [Formula: see text], is not universal.
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