English Dehn invariant Cited by user David Eppstein on 12 Mar 2023 In geometry, the Dehn invariant is a value used to determine whether one polyhedron can be cut into pieces and reassembled ("dissected") into another, and whether a…
Spanish Tercer problema de Hilbert Cited by user Wiki LIC on 02 Feb 2021 El tercer problema de Hilbert, forma parte de la lista de 23 cuestiones presentada en 1900 por el matemático alemán David Hilbert, y fue el primero en resolverse.
English Hilbert's third problem Cited by user Bender235 on 14 Jul 2014 The third on Hilbert's list of mathematical problems, presented in 1900, was the first to be solved.