On strictly convex subsets in negatively curved manifolds
Parkkonen, Jouni · Paulin, Frédéric
Original · EN
In a complete simply connected Riemannian manifold X of pinched negative curvature, we give a sharp criterion for a subset C to be the epsilon-neighbourhood of some convex subset of X, in terms of the extrinsic curvatures of the boundary of C.
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