Hostname: page-component-6766d58669-kl59c Total loading time: 0 Render date: 2026-05-17T11:27:27.647Z Has data issue: false hasContentIssue false

On 4-manifolds with universal covering space a compact geometric manifold

Published online by Cambridge University Press:  09 April 2009

Jonathan A. Hillman
Affiliation:
School of Mathematics and Statistics, The University of Sydney, Sydney, NSW 2006, AUSTRALIA
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the 'Save PDF' action button.

There are 11 closed 4-manifolds which admit geometries of compact type (S4, CP2 or S2 × S2) and two other closely related bundle spaces (S2 × S2 and the total space of the nontrivial RP2-bundle over S2). We show that the homotopy type of such a manifold is determined up to an ambiguity of order at most 4 by its quadratic 2-type, and this in turn is (in most cases) determined by the Euler characteristic, fundamental group and Stiefel-Whitney classes. In (at least) seven of the 13 cases, a PL 4-manifold with the same invariants as a geometric manifold or bundle space must be homeomorphic to it.

MSC classification

Information

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1993