A characterization of round spheres in terms of blocking light

DOI10.4171/CMH/195zbMath1188.53033arXiv0704.3642MaRDI QIDQ2269701

Benjamin Schmidt, Juan Souto

Publication date: 17 March 2010

Published in: Commentarii Mathematici Helvetici (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/0704.3642

zbMATH Keywords

Riemannian manifoldblocking numbercross blockingsphere blocking

Mathematics Subject Classification ID

Geodesics in global differential geometry (53C22) Global Riemannian geometry, including pinching (53C20) Dynamical systems of geometric origin and hyperbolicity (geodesic and horocycle flows, etc.) (37D40)

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