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Bounded 3-manifolds admit negatively curved metrics with concave boundary - MaRDI portal

Bounded 3-manifolds admit negatively curved metrics with concave boundary (Q1345146)

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scientific article; zbMATH DE number 727337
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English
Bounded 3-manifolds admit negatively curved metrics with concave boundary
scientific article; zbMATH DE number 727337

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    Bounded 3-manifolds admit negatively curved metrics with concave boundary (English)
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    26 February 1995
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    A metric can be constructed on any 3-manifold with non-empty boundary such that with respect to the metric the manifold has negative sectional curvature and the boundary is concave. In particular, the 3-ball admits such a metric.
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    concave boundary
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    manifold with boundary
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    3-manifold
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    negative sectional curvature
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