Runcinated 8-simplexes
In eight-dimensional geometry, a runcinated 8-simplex is a convex uniform 8-polytope with 3rd order truncations (runcination) of the regular 8-simplex.
There are eleven unique runcinations of the 8-simplex, including permutations of truncation and cantellation. The triruncinated 8-simplex and triruncicanti
Runcinated 8-simplex
Runcinated 8-simplex | |
---|---|
Type | uniform 8-polytope |
Schläfli symbol | t0,3{3,3,3,3,3,3,3} |
Coxeter-Dynkin diagrams | File:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.png |
6-faces | |
5-faces | |
4-faces | |
Cells | |
Faces | |
Edges | 4536 |
Vertices | 504 |
Vertex figure | |
Coxeter group | A8, [37], order 362880 |
Properties | convex |
Alternate names
- Runcinated enneazetton
- Small prismated enneazetton (Acronym: spene) (Jonathan Bowers)[1]
Coordinates
The Cartesian coordinates of the vertices of the runcinated 8-simplex can be most simply positioned in 9-space as permutations of (0,0,0,0,0,1,1,1,2). This construction is based on facets of the runcinated 9-orthoplex.
Images
Ak Coxeter plane | A8 | A7 | A6 | A5 |
---|---|---|---|---|
Graph | File:8-simplex t03.svg | File:8-simplex t03 A7.svg | File:8-simplex t03 A6.svg | File:8-simplex t03 A5.svg |
Dihedral symmetry | [9] | [8] | [7] | [6] |
Ak Coxeter plane | A4 | A3 | A2 | |
Graph | File:8-simplex t03 A4.svg | File:8-simplex t03 A3.svg | File:8-simplex t03 A2.svg | |
Dihedral symmetry | [5] | [4] | [3] |
Biruncinated 8-simplex
Biruncinated 8-simplex | |
---|---|
Type | uniform 8-polytope |
Schläfli symbol | t1,4{3,3,3,3,3,3,3} |
Coxeter-Dynkin diagram | File:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.png |
7-faces | |
6-faces | |
5-faces | |
4-faces | |
Cells | |
Faces | |
Edges | 11340 |
Vertices | 1260 |
Vertex figure | |
Coxeter group | A8, [37], order 362880 |
Properties | convex |
Alternate names
- Biruncinated enneazetton
- Small biprismated enneazetton (Acronym: sabpene) (Jonathan Bowers)[2]
Coordinates
The Cartesian coordinates of the vertices of the biruncinated 8-simplex can be most simply positioned in 9-space as permutations of (0,0,0,0,1,1,1,2,2). This construction is based on facets of the biruncinated 9-orthoplex.
Images
Ak Coxeter plane | A8 | A7 | A6 | A5 |
---|---|---|---|---|
Graph | File:8-simplex t14.svg | File:8-simplex t14 A7.svg | File:8-simplex t14 A6.svg | File:8-simplex t14 A5.svg |
Dihedral symmetry | [9] | [8] | [7] | [6] |
Ak Coxeter plane | A4 | A3 | A2 | |
Graph | File:8-simplex t14 A4.svg | File:8-simplex t14 A3.svg | File:8-simplex t14 A2.svg | |
Dihedral symmetry | [5] | [4] | [3] |
Triruncinated 8-simplex
Triruncinated 8-simplex | |
---|---|
Type | uniform 8-polytope |
Schläfli symbol | t2,5{3,3,3,3,3,3,3} |
Coxeter-Dynkin diagrams | File:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.png |
7-faces | |
6-faces | |
5-faces | |
4-faces | |
Cells | |
Faces | |
Edges | 15120 |
Vertices | 1680 |
Vertex figure | |
Coxeter group | A8×2, [[37]], order 725760 |
Properties | convex |
Alternate names
- Triruncinated enneazetton
- Small triprismated enneazetton (Acronym: satpeb) (Jonathan Bowers)[3]
Coordinates
The Cartesian coordinates of the vertices of the triruncinated 8-simplex can be most simply positioned in 9-space as permutations of (0,0,0,1,1,1,2,2,2). This construction is based on facets of the triruncinated 9-orthoplex.
Images
Ak Coxeter plane | A8 | A7 | A6 | A5 |
---|---|---|---|---|
Graph | File:8-simplex t25.svg | File:8-simplex t25 A7.svg | File:8-simplex t25 A6.svg | File:8-simplex t25 A5.svg |
Dihedral symmetry | [[9]] = [18] | [8] | [[7]] = [14] | [6] |
Ak Coxeter plane | A4 | A3 | A2 | |
Graph | File:8-simplex t25 A4.svg | File:8-simplex t25 A3.svg | File:8-simplex t25 A2.svg | |
Dihedral symmetry | [[5]] = [10] | [4] | [[3]] = [6] |
Runcitruncated 8-simplex
File:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.png
Images
Ak Coxeter plane | A8 | A7 | A6 | A5 |
---|---|---|---|---|
Graph | File:8-simplex t013.svg | File:8-simplex t013 A7.svg | File:8-simplex t013 A6.svg | File:8-simplex t013 A5.svg |
Dihedral symmetry | [[9]] = [18] | [8] | [[7]] = [14] | [6] |
Ak Coxeter plane | A4 | A3 | A2 | |
Graph | File:8-simplex t013 A4.svg | File:8-simplex t013 A3.svg | File:8-simplex t013 A2.svg | |
Dihedral symmetry | [[5]] = [10] | [4] | [[3]] = [6] |
Biruncitruncated 8-simplex
File:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.png
Images
Ak Coxeter plane | A8 | A7 | A6 | A5 |
---|---|---|---|---|
Graph | File:8-simplex t124.svg | File:8-simplex t124 A7.svg | File:8-simplex t124 A6.svg | File:8-simplex t124 A5.svg |
Dihedral symmetry | [[9]] = [18] | [8] | [[7]] = [14] | [6] |
Ak Coxeter plane | A4 | A3 | A2 | |
Graph | File:8-simplex t124 A4.svg | File:8-simplex t124 A3.svg | File:8-simplex t124 A2.svg | |
Dihedral symmetry | [[5]] = [10] | [4] | [[3]] = [6] |
Triruncitruncated 8-simplex
File:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.png
Images
Ak Coxeter plane | A8 | A7 | A6 | A5 |
---|---|---|---|---|
Graph | File:8-simplex t235.svg | File:8-simplex t235 A7.svg | File:8-simplex t235 A6.svg | File:8-simplex t235 A5.svg |
Dihedral symmetry | [[9]] = [18] | [8] | [[7]] = [14] | [6] |
Ak Coxeter plane | A4 | A3 | A2 | |
Graph | File:8-simplex t235 A4.svg | File:8-simplex t235 A3.svg | File:8-simplex t235 A2.svg | |
Dihedral symmetry | [[5]] = [10] | [4] | [[3]] = [6] |
Runcicantellated 8-simplex
File:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.png
Images
Ak Coxeter plane | A8 | A7 | A6 | A5 |
---|---|---|---|---|
Graph | File:8-simplex t023.svg | File:8-simplex t023 A7.svg | File:8-simplex t023 A6.svg | File:8-simplex t023 A5.svg |
Dihedral symmetry | [[9]] = [18] | [8] | [[7]] = [14] | [6] |
Ak Coxeter plane | A4 | A3 | A2 | |
Graph | File:8-simplex t023 A4.svg | File:8-simplex t023 A3.svg | File:8-simplex t023 A2.svg | |
Dihedral symmetry | [[5]] = [10] | [4] | [[3]] = [6] |
Biruncicantellated 8-simplex
File:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.png
Images
Ak Coxeter plane | A8 | A7 | A6 | A5 |
---|---|---|---|---|
Graph | File:8-simplex t134.svg | File:8-simplex t134 A7.svg | File:8-simplex t134 A6.svg | File:8-simplex t134 A5.svg |
Dihedral symmetry | [[9]] = [18] | [8] | [[7]] = [14] | [6] |
Ak Coxeter plane | A4 | A3 | A2 | |
Graph | File:8-simplex t134 A4.svg | File:8-simplex t134 A3.svg | File:8-simplex t134 A2.svg | |
Dihedral symmetry | [[5]] = [10] | [4] | [[3]] = [6] |
Runcicantitruncated 8-simplex
File:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.png
Images
Ak Coxeter plane | A8 | A7 | A6 | A5 |
---|---|---|---|---|
Graph | File:8-simplex t0123.svg | File:8-simplex t0123 A7.svg | File:8-simplex t0123 A6.svg | File:8-simplex t0123 A5.svg |
Dihedral symmetry | [[9]] = [18] | [8] | [[7]] = [14] | [6] |
Ak Coxeter plane | A4 | A3 | A2 | |
Graph | File:8-simplex t0123 A4.svg | File:8-simplex t0123 A3.svg | File:8-simplex t0123 A2.svg | |
Dihedral symmetry | [[5]] = [10] | [4] | [[3]] = [6] |
Biruncicantitruncated 8-simplex
File:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.png
Images
Ak Coxeter plane | A8 | A7 | A6 | A5 |
---|---|---|---|---|
Graph | File:8-simplex t1234.svg | File:8-simplex t1234 A7.svg | File:8-simplex t1234 A6.svg | File:8-simplex t1234 A5.svg |
Dihedral symmetry | [[9]] = [18] | [8] | [[7]] = [14] | [6] |
Ak Coxeter plane | A4 | A3 | A2 | |
Graph | File:8-simplex t1234 A4.svg | File:8-simplex t1234 A3.svg | File:8-simplex t1234 A2.svg | |
Dihedral symmetry | [[5]] = [10] | [4] | [[3]] = [6] |
Triruncicantitruncated 8-simplex
File:CDel node.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node 1.pngFile:CDel 3.pngFile:CDel node.pngFile:CDel 3.pngFile:CDel node.png
Images
Ak Coxeter plane | A8 | A7 | A6 | A5 |
---|---|---|---|---|
Graph | File:8-simplex t2345.svg | File:8-simplex t2345 A7.svg | File:8-simplex t2345 A6.svg | File:8-simplex t2345 A5.svg |
Dihedral symmetry | [[9]] = [18] | [8] | [[7]] = [14] | [6] |
Ak Coxeter plane | A4 | A3 | A2 | |
Graph | File:8-simplex t2345 A4.svg | File:8-simplex t2345 A3.svg | File:8-simplex t2345 A2.svg | |
Dihedral symmetry | [[5]] = [10] | [4] | [[3]] = [6] |
Related polytopes
This polytope is one of 135 uniform 8-polytopes with A8 symmetry.
Notes
References
- H.S.M. Coxeter:
- H.S.M. Coxeter, Regular Polytopes, 3rd Edition, Dover New York, 1973
- 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]
- (Paper 22) H.S.M. Coxeter, Regular and Semi Regular Polytopes I, [Math. Zeit. 46 (1940) 380-407, MR 2,10]
- (Paper 23) H.S.M. Coxeter, Regular and Semi-Regular Polytopes II, [Math. Zeit. 188 (1985) 559-591]
- (Paper 24) H.S.M. Coxeter, Regular and Semi-Regular Polytopes III, [Math. Zeit. 200 (1988) 3-45]
- Norman Johnson Uniform Polytopes, Manuscript (1991)
- N.W. Johnson: The Theory of Uniform Polytopes and Honeycombs, Ph.D.
- Klitzing, Richard. "8D uniform polytopes (polyzetta)". x3o3o3x3o3o3o3o - spene, o3x3o3o3x3o3o3o - sabpene, o3o3x3o3o3x3o3o - satpeb