1_{52} honeycomb | |
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(No image) | |
Type | Uniform tessellation |
Family | 1_{k2} polytope |
Schläfli symbol | {3,3^{5,2}} |
Coxeter symbol | 1_{52} |
Coxeter-Dynkin diagram | |
8-face types | 1_{42} 1_{51} |
7-face types | 1_{32} 1_{41} |
6-face types | 1_{22} {3^{1,3,1}} {3^{5}} |
5-face types | 1_{21} {3^{4}} |
4-face type | 1_{11} {3^{3}} |
Cells | {3^{2}} |
Faces | {3} |
Vertex figure | birectified 8-simplex: t_{2}{3^{7}} |
Coxeter group | , [3^{5,2,1}] |
In geometry, the 1_{52} honeycomb is a uniform tessellation of 8-dimensional Euclidean space. It contains 1_{42} and 1_{51} facets, in a birectified 8-simplex vertex figure. It is the final figure in the 1_{k2} polytope family.
Construction
It is created by a Wythoff construction upon a set of 9 hyperplane mirrors in 8-dimensional space.
The facet information can be extracted from its Coxeter-Dynkin diagram.
Removing the node on the end of the 2-length branch leaves the 8-demicube, 1_{51}.
Removing the node on the end of the 5-length branch leaves the 1_{42}.
The vertex figure is determined by removing the ringed node and ringing the neighboring node. This makes the birectified 8-simplex, 0_{52}.
Related polytopes and honeycombs
1_{k2} figures in n dimensions | |||||||||||
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Space | Finite | Euclidean | Hyperbolic | ||||||||
n | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |||
Coxeter group |
E_{3}=A_{2}A_{1} | E_{4}=A_{4} | E_{5}=D_{5} | E_{6} | E_{7} | E_{8} | E_{9} = = E_{8}^{+} | E_{10} = = E_{8}^{++} | |||
Coxeter diagram |
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Symmetry (order) |
[3^{−1,2,1}] | [3^{0,2,1}] | [3^{1,2,1}] | [[3^{2,2,1}]] | [3^{3,2,1}] | [3^{4,2,1}] | [3^{5,2,1}] | [3^{6,2,1}] | |||
Order | 12 | 120 | 192 | 103,680 | 2,903,040 | 696,729,600 | ∞ | ||||
Graph | - | - | |||||||||
Name | 1_{−1,2} | 1_{02} | 1_{12} | 1_{22} | 1_{32} | 1_{42} | 1_{52} | 1_{62} |
See also
References
- Coxeter The Beauty of Geometry: Twelve Essays, Dover Publications, 1999, ISBN 978-0-486-40919-1 (Chapter 3: Wythoff's Construction for Uniform Polytopes)
- Coxeter Regular Polytopes (1963), Macmillan Company
- Regular Polytopes, Third edition, (1973), Dover edition, ISBN 0-486-61480-8 (Chapter 5: The Kaleidoscope)
- Kaleidoscopes: Selected Writings of H.S.M. Coxeter, edited by F. Arthur Sherk, Peter McMullen, Anthony C. Thompson, Asia Ivic Weiss, Wiley-Interscience Publication, 1995, ISBN 978-0-471-01003-6 [1] GoogleBook
- (Paper 24) H.S.M. Coxeter, Regular and Semi-Regular Polytopes III, [Math. Zeit. 200 (1988) 3-45]
Fundamental convex regular and uniform honeycombs in dimensions 2-9
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{3^{[3]}} | δ_{3} | hδ_{3} | qδ_{3} | Hexagonal | ||
{3^{[4]}} | δ_{4} | hδ_{4} | qδ_{4} | |||
{3^{[5]}} | δ_{5} | hδ_{5} | qδ_{5} | 24-cell honeycomb | ||
{3^{[6]}} | δ_{6} | hδ_{6} | qδ_{6} | |||
{3^{[7]}} | δ_{7} | hδ_{7} | qδ_{7} | 2_{22} | ||
{3^{[8]}} | δ_{8} | hδ_{8} | qδ_{8} | 1_{33} • 3_{31} | ||
{3^{[9]}} | δ_{9} | hδ_{9} | qδ_{9} | 1_{52} • 2_{51} • 5_{21} | ||
{3^{[10]}} | δ_{10} | hδ_{10} | qδ_{10} | |||
{3^{[n]}} | δ_{n} | hδ_{n} | qδ_{n} | 1_{k2} • 2_{k1} • k_{21} |