Besides the regular and semiregular solids, there are just ninety-two other convex polyhedra with regular faces. In 1966, the American mathematician Norman W. Johnson, a student of H.S.M. Coxeter at ...

A 3D shape with all straight edges and flat faces is a polyhedron. Other 3D shapes with least one curved surface are not polyhedra. A 3D shape with regular polygonal faces, meeting at equal angles ...

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Polyhedrons are complex, multifaceted entities that come in a variety of flavors despite the geometric constraints on what constitutes a polyhedron. Distinguishing one polyhedron from another ...

Fourier Restriction for Hypersurfaces in Three Dimensions and Newton Polyhedra Isroil A ... Schwartz Outer billiards is a basic dynamical system defined relative to a convex shape in the plane. B. H.

A polygon is regular if it is uniform and its faces are all alike. The regular convex polyhedra are the five Platonic solids, which have been known since classical Greece. The ancient Greek ...