Abstract
In this paper we prove that the moduli space of metrics with positive scalar curvature of an orientable compact three-manifold is path-connected. The proof uses the Ricci flow with surgery, the conformal method, and the connected sum construction of Gromov and Lawson. The work of Perelman on Hamilton’s Ricci flow is fundamental. As one of the applications we prove the path-connectedness of the space of trace-free asymptotically flat solutions to the vacuum Einstein constraint equations on $\mathbb{R}^3$.
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AUTHOR = {Rosenberg, Jonathan and Stolz, Stephan},
TITLE = {Metrics of positive scalar curvature and connections with surgery},
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author={Weyl, H.},
TITLE={{Ü}ber die Bestimmung einer geschlossenen konvexen {F}l{ä}che durch ihr {L}inienelement},
JOURNAL={Vierteljahrsschr. Naturforsch. Ges. Zür},
VOLUME={61},
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YEAR={1916},
JFMNUMBER = {46.1115.03},
}
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