arXiv · 0805.0323
On submanifolds with tamed second fundamental form
Abstract
We show that a complete submanifold $M$ with tamed second fundamental form in a complete Riemannian manifold $N$ with sectional curvature $K_{N}\leq κ\leq 0$ are proper, (compact if $N$ is compact). In addition, if $N$ is Hadamard then $M$ has finite topology. We also show that the fundamental tone is an obstruction for a Riemannian manifold to be realized as submanifold with tamed second fundamental form of a Hadamard manifold with sectional curvature bounded below.
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G. Pacelli Bessa, M. Silvana Costa. 2008-05-02. On submanifolds with tamed second fundamental form. https://doi.org/10.1017/s0017089509990085
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