@gregeganSF@mathstodon.xyz @johncarlosbaez@mathstodon.xyz Curiously, the authors write that the noperthedron has 90 vertices but don't give the number of (faces, edges) of the noperthedron in their paper. Have you any idea on these numbers?| mamot.fr
A three-dimensional convex body is said to have Rupert's property if its copy can be passed through a straight hole inside that body. In this work we construct a polyhedron which is provably not Rupert, thus we disprove a conjecture from 2017. We also find a polyhedron that is Rupert but not locally Rupert.| arXiv.org