Talk:Conformally flat manifold
Latest comment: 4 years ago by 67.198.37.17 in topic Yamabe problem
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references edit
Can somebody please add references for the statements made in the Examples section? — Preceding unsigned comment added by 171.65.239.16 (talk) 04:59, 14 November 2013 (UTC)
Yamabe problem edit
I'm not sure, but the Yamabe problem seems to say that *every* Rieman manifold is conformally equivalent to one of constant scalar curvature. This seems not to hold for pseudo-Riemannian manifolds; and its unclear to me whether or how "can be made flat locally" is promoted to a global statement. That is, are there manifolds which can everywhere be made flat locally, but can't be made such globally? (viz some kind of combing-of-hair type theorem?) 67.198.37.17 (talk) 04:51, 1 May 2019 (UTC)