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math.MG2012
The equal tangents property
J. Jeronimo-Castro, G. Ruiz-Hernandez, S. Tabachnikov
Let M be a smooth strictly convex closed surface in space and denote by H the set of points x in the exterior of M such that all the tangent segments from x to M have equal lengths…
math.MG2012★ 10 cited
Two characterizations of ellipsoidal cones
Jesús Jerónimo-Castro, Tyrrell B. McAllister
We give two characterizations of cones over ellipsoids. Let be a closed pointed convex linear cone in a finite-dimensional real vector space. We show that is a cone over an…