Characterizations of the sphere by means of point-projections

J. Jeronimo_Castro, E. Morales-Amaya, D. J. Verdusco Hernández

In this work we prove the following: let $K$ be a convex body in the Euclidean space ${\mathbb{R}}^n$, $n\ge 3$, contained in the interior of the unit ball of ${\mathbb{R}}^n$, and le…