5-simplex |
Runcinated 5-simplex |
Runcitruncated 5-simplex |
Birectified 5-simplex |
Runcicantellated 5-simplex |
Runcicantitruncated 5-simplex |
Orthogonal projections in A5 Coxeter plane |
---|
In six-dimensional geometry, a runcinated 5-simplex is a convex uniform 5-polytope with 3rd order truncations (Runcination) of the regular 5-simplex.
There are 4 unique runcinations of the 5-simplex with permutations of truncations, and cantellations.
Runcinated 5-simplex
editRuncinated 5-simplex | ||
Type | Uniform 5-polytope | |
Schläfli symbol | t0,3{3,3,3,3} | |
Coxeter-Dynkin diagram | ||
4-faces | 47 | 6 t0,3{3,3,3} 20 {3}×{3} 15 { }×r{3,3} 6 r{3,3,3} |
Cells | 255 | 45 {3,3} 180 { }×{3} 30 r{3,3} |
Faces | 420 | 240 {3} 180 {4} |
Edges | 270 | |
Vertices | 60 | |
Vertex figure | ||
Coxeter group | A5 [3,3,3,3], order 720 | |
Properties | convex |
Alternate names
edit- Runcinated hexateron
- Small prismated hexateron (Acronym: spix) (Jonathan Bowers)[1]
Coordinates
editThe vertices of the runcinated 5-simplex can be most simply constructed on a hyperplane in 6-space as permutations of (0,0,1,1,1,2) or of (0,1,1,1,2,2), seen as facets of a runcinated 6-orthoplex, or a biruncinated 6-cube respectively.
Images
editAk Coxeter plane |
A5 | A4 |
---|---|---|
Graph | ||
Dihedral symmetry | [6] | [5] |
Ak Coxeter plane |
A3 | A2 |
Graph | ||
Dihedral symmetry | [4] | [3] |
Runcitruncated 5-simplex
editRuncitruncated 5-simplex | ||
Type | Uniform 5-polytope | |
Schläfli symbol | t0,1,3{3,3,3,3} | |
Coxeter-Dynkin diagram | ||
4-faces | 47 | 6 t0,1,3{3,3,3} 20 {3}×{6} 15 { }×r{3,3} 6 rr{3,3,3} |
Cells | 315 | |
Faces | 720 | |
Edges | 630 | |
Vertices | 180 | |
Vertex figure | ||
Coxeter group | A5 [3,3,3,3], order 720 | |
Properties | convex, isogonal |
Alternate names
edit- Runcitruncated hexateron
- Prismatotruncated hexateron (Acronym: pattix) (Jonathan Bowers)[2]
Coordinates
editThe coordinates can be made in 6-space, as 180 permutations of:
- (0,0,1,1,2,3)
This construction exists as one of 64 orthant facets of the runcitruncated 6-orthoplex.
Images
editAk Coxeter plane |
A5 | A4 |
---|---|---|
Graph | ||
Dihedral symmetry | [6] | [5] |
Ak Coxeter plane |
A3 | A2 |
Graph | ||
Dihedral symmetry | [4] | [3] |
Runcicantellated 5-simplex
editRuncicantellated 5-simplex | ||
Type | Uniform 5-polytope | |
Schläfli symbol | t0,2,3{3,3,3,3} | |
Coxeter-Dynkin diagram | ||
4-faces | 47 | |
Cells | 255 | |
Faces | 570 | |
Edges | 540 | |
Vertices | 180 | |
Vertex figure | ||
Coxeter group | A5 [3,3,3,3], order 720 | |
Properties | convex, isogonal |
Alternate names
edit- Runcicantellated hexateron
- Biruncitruncated 5-simplex/hexateron
- Prismatorhombated hexateron (Acronym: pirx) (Jonathan Bowers)[3]
Coordinates
editThe coordinates can be made in 6-space, as 180 permutations of:
- (0,0,1,2,2,3)
This construction exists as one of 64 orthant facets of the runcicantellated 6-orthoplex.
Images
editAk Coxeter plane |
A5 | A4 |
---|---|---|
Graph | ||
Dihedral symmetry | [6] | [5] |
Ak Coxeter plane |
A3 | A2 |
Graph | ||
Dihedral symmetry | [4] | [3] |
Runcicantitruncated 5-simplex
editRuncicantitruncated 5-simplex | ||
Type | Uniform 5-polytope | |
Schläfli symbol | t0,1,2,3{3,3,3,3} | |
Coxeter-Dynkin diagram | ||
4-faces | 47 | 6 t0,1,2,3{3,3,3} 20 {3}×{6} 15 {}×t{3,3} 6 tr{3,3,3} |
Cells | 315 | 45 t0,1,2{3,3} 120 { }×{3} 120 { }×{6} 30 t{3,3} |
Faces | 810 | 120 {3} 450 {4} 240 {6} |
Edges | 900 | |
Vertices | 360 | |
Vertex figure | Irregular 5-cell | |
Coxeter group | A5 [3,3,3,3], order 720 | |
Properties | convex, isogonal |
Alternate names
edit- Runcicantitruncated hexateron
- Great prismated hexateron (Acronym: gippix) (Jonathan Bowers)[4]
Coordinates
editThe coordinates can be made in 6-space, as 360 permutations of:
- (0,0,1,2,3,4)
This construction exists as one of 64 orthant facets of the runcicantitruncated 6-orthoplex.
Images
editAk Coxeter plane |
A5 | A4 |
---|---|---|
Graph | ||
Dihedral symmetry | [6] | [5] |
Ak Coxeter plane |
A3 | A2 |
Graph | ||
Dihedral symmetry | [4] | [3] |
Related uniform 5-polytopes
editThese polytopes are in a set of 19 uniform 5-polytopes based on the [3,3,3,3] Coxeter group, all shown here in A5 Coxeter plane orthographic projections. (Vertices are colored by projection overlap order, red, orange, yellow, green, cyan, blue, purple having progressively more vertices)
A5 polytopes | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
t0 |
t1 |
t2 |
t0,1 |
t0,2 |
t1,2 |
t0,3 | |||||
t1,3 |
t0,4 |
t0,1,2 |
t0,1,3 |
t0,2,3 |
t1,2,3 |
t0,1,4 | |||||
t0,2,4 |
t0,1,2,3 |
t0,1,2,4 |
t0,1,3,4 |
t0,1,2,3,4 |
Notes
editReferences
edit- 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. "5D uniform polytopes (polytera)". x3o3o3x3o - spidtix, x3x3o3x3o - pattix, x3o3x3x3o - pirx, x3x3x3x3o - gippix
External links
edit- Glossary for hyperspace, George Olshevsky.
- Polytopes of Various Dimensions, Jonathan Bowers
- Runcinated uniform polytera (spid), Jonathan Bowers
- Multi-dimensional Glossary