Harvey, John ![]() |
Official URL: https://doi.org/10.1090/proc/15093
Abstract
We prove that if a closed, smooth, simply-connected 4-manifold with a circle action admits an almost non-negatively curved sequence of invariant Riemannian metrics, then it also admits a non-negatively curved Riemannian metric invariant with respect to the same action. The same is shown for torus actions of higher rank, giving a classification of closed, smooth, simply-connected 4-manifolds of almost non-negative curvature under the assumption of torus symmetry.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Mathematics |
Publisher: | American Mathematical Society |
ISSN: | 0002-9939 |
Last Modified: | 10 Nov 2022 11:34 |
URI: | https://orca.cardiff.ac.uk/id/eprint/150999 |
Citation Data
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