English Schönhardt polyhedron Cited by user David Eppstein on 19 Feb 2024 In geometry, a Schönhardt polyhedron is a polyhedron with the same combinatorial structure as a regular octahedron, but with dihedral angles that are non-convex along…
English Erdős–Ko–Rado theorem Cited by user David Eppstein on 23 Aug 2022 In combinatorics, the Erdős–Ko–Rado theorem of Paul Erdős, Chao Ko, and Richard Rado is a theorem bounding the size of intersecting families of sets.
Serbian Немогући објекат Cited by user Mi19039 on 18 Dec 2021 Немогући објекат је врста оптичке илузије која се састоји од дводимензионалне фигуре коју мрежњача тренутно и природно схвата као пројекцију тродимензионалног објекта.
English Ronald Graham Cited by user David Eppstein on 13 Jul 2020 Ronald Lewis Graham (October 31, 1935July 6, 2020) was an American mathematician credited by the American Mathematical Society as "one of the principal architects of the…