Indecomposable non-orientable $P{D}_3$-complexes

Abstract

We show that the orientable double covering space of an indecomposable non-orientable $P{D}_3$-complex has torsion free fundamental group.

Treatment of Jacobian matrix in Lemma 3 corrected. v3 has been expanded to be more self-contained. New Lemma 5 in v4, to clarify argument of main result

References in corpus (1)

• Indecomposable $P{D}_3$-complexes