Hanner polytope

In geometry, a Hanner polytope is a convex polytope constructed recursively by Cartesian product and polar dual operations. Hanner polytopes are named after Olof Hanner, who introduced them in 1956.^[1]

^ Hanner, Olof (1956), "Intersections of translates of convex bodies", Mathematica Scandinavica, 4: 65–87, MR 0082696.