Order-5 dodecahedral honeycomb
Regular tiling of hyperbolic 3-space / From Wikipedia, the free encyclopedia
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In hyperbolic geometry, the order-5 dodecahedral honeycomb is one of four compact regular space-filling tessellations (or honeycombs) in hyperbolic 3-space. With Schläfli symbol {5,3,5}, it has five dodecahedral cells around each edge, and each vertex is surrounded by twenty dodecahedra. Its vertex figure is an icosahedron.
Order-5 dodecahedral honeycomb | |
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Perspective projection view from center of Poincaré disk model | |
Type | Hyperbolic regular honeycomb Uniform hyperbolic honeycomb |
Schläfli symbol | {5,3,5} t0{5,3,5} |
Coxeter-Dynkin diagram | |
Cells | {5,3} (regular dodecahedron) |
Faces | {5} (pentagon) |
Edge figure | {5} (pentagon) |
Vertex figure | icosahedron |
Dual | Self-dual |
Coxeter group | K3, [5,3,5] |
Properties | Regular |
A geometric honeycomb is a space-filling of polyhedral or higher-dimensional cells, so that there are no gaps. It is an example of the more general mathematical tiling or tessellation in any number of dimensions.
Honeycombs are usually constructed in ordinary Euclidean ("flat") space, like the convex uniform honeycombs. They may also be constructed in non-Euclidean spaces, such as hyperbolic uniform honeycombs. Any finite uniform polytope can be projected to its circumsphere to form a uniform honeycomb in spherical space.