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Decades-Old Graph Problem Yields to Amateur Mathematician
By making the first progress on the “chromatic number of the plane” problem in over 60 years, an anti-aging pundit has achieved mathematical immortality.
A Mathematician Who Dances to the Joys and Sorrows of Discovery
Federico Ardila opens up about his journey as a mathematician, teacher, Colombian transplant, DJ and creator of mathematical spaces.
Pentagon Tiling Proof Solves Century-Old Math Problem
A French mathematician has completed the classification of all convex pentagons, and therefore all convex polygons, that tile the plane.