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Jan 9, 2014 at 22:37 comment added Misha It is impossible for metric trees. The same argument as Andre's shows that it is possible in the case of connected Riemannian manifolds.
Jan 9, 2014 at 22:15 answer added André Henriques timeline score: 13
Jan 9, 2014 at 22:07 history asked Stefan Kohl CC BY-SA 3.0