, Volume 85, Issue 3, pp 278-282

Circle bundles over 4-manifolds

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Abstract.

Every 1-connected topological 4-manifold M admits a S 1-covering by # r − 1 S 2 × S 3, where \(r = {\text{rank }}H^2 \left( {M;\mathbb{Z}} \right).\)

Received: 4 July 2004