List Of Uniform Polyhedra By Wythoff Symbol

There are many relations among the uniform polyhedra.

Here they are grouped by the Wythoff symbol.

Key

Image Name Bowers pet name V Number of vertices,E Number of edges,F Number of faces=Face configuration ?=Euler characteristic, group=Symmetry group Wythoff symbol - Vertex figure W - Wenninger number, U - Uniform number, K- Kaleido number, C -Coxeter number alternative name second alternative name

Regular

All the faces are identical, each edge is identical and each vertex is identical. They all have a Wythoff symbol of the form p|q 2.

Convex

The Platonic solids.

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Non-convex

The Kepler-Poinsot solids.

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Quasi-regular

Each edge is identical and each vertex is identical. There are two types of faces which appear in an alternating fashion around each vertex. The first row are semi-regular with 4 faces around each vertex. They have Wythoff symbol 2|p q. The second row are ditrigonal with 6 faces around each vertex. They have Wythoff symbol 3|p q or ³/₂|p q.

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Wythoff p q|r

Truncated regular forms

Each vertex has three faces surrounding it, two of which are identical. These all have Wythoff symbols 2 p|q, some are constructed by truncating the regular solids.

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Hemipolyhedra

The hemipolyhedra all have faces which pass through the origin. Their Wythoff symbols are of the form p p/m|q or p/m p/n|q. With the exception of the tetrahemihexahedron they occur in pairs, and are closely related to the semi-regular polyhedra, like the cuboctohedron.

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Rhombic quasi-regular

Four faces around the vertex in the pattern p.q.r.q. The name rhombic stems from inserting a square in the cuboctahedron and icosidodecahedron. The Wythoff symbol is of the form p q|r.

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Even-sided forms

Wythoff p q r|

These have three different faces around each vertex, and the vertices do not lie on any plane of symmetry. They have Wythoff symbol p q r|, and vertex figures 2p.2q.2r.

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Wythoff p q (r s)|

Vertex figure p.q.-p.-q. Wythoff p q (r s)|, mixing pqr| and pqs|.

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Snub polyhedra

These have Wythoff symbol |p q r, and one non-Wythoffian construction is given |p q r s.

Wythoff |p q r

Symmetry group
O	Template:Polyhedra smallbox2
I_h	Template:Polyhedra smallbox2	Template:Polyhedra smallbox2
I	Template:Polyhedra smallbox2	Template:Polyhedra smallbox2	Template:Polyhedra smallbox2
I	Template:Polyhedra smallbox2	Template:Polyhedra smallbox2	Template:Polyhedra smallbox2
I	Template:Polyhedra smallbox2	Template:Polyhedra smallbox2

Wythoff |p q r s

Symmetry group
Ih	Template:Polyhedra smallbox2

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Original source: https://en.wikipedia.org/wiki/List of uniform polyhedra by Wythoff symbol. Read more