| 释义 |
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{{DISPLAYTITLE:A5 polytope}} Orthographic projections
A5 Coxeter plane5-simplex
{{CDD>node_1|3|node|3|node|3|node|3|node}} | In 5-dimensional geometry, there are 19 uniform polytopes with A5 symmetry. There is one self-dual regular form, the 5-simplex with 6 vertices. Each can be visualized as symmetric orthographic projections in Coxeter planes of the A5 Coxeter group, and other subgroups. Graphs Symmetric orthographic projections of these 19 polytopes can be made in the A5, A4, A3, A2 Coxeter planes. Ak graphs have [k+1] symmetry. For even k and symmetrically nodea_1ed-diagrams, symmetry doubles to [2(k+1)]. These 19 polytopes are each shown in these 4 symmetry planes, with vertices and edges drawn, and vertices colored by the number of overlapping vertices in each projective position. | # | Coxeter plane graphs | Coxeter-Dynkin diagram
Schläfli symbol
Name | | [6] | [5] | [4] | [3] |
|---|
| A5 | A4 | A3 | A2 |
|---|
| 1 | node_1|3|node|3|node|3|node|3|node}}
{3,3,3,3}
5-simplex (hix) |
|---|
| 2 | node|3|node_1|3|node|3|node|3|node}}
t1{3,3,3,3} or r{3,3,3,3}
Rectified 5-simplex (rix) |
|---|
| 3 | node|3|node|3|node_1|3|node|3|node}}
t2{3,3,3,3} or 2r{3,3,3,3}
Birectified 5-simplex (dot) |
|---|
| 4 | node_1|3|node_1|3|node|3|node|3|node}}
t0,1{3,3,3,3} or t{3,3,3,3}
Truncated 5-simplex (tix) |
|---|
| 5 | node|3|node_1|3|node_1|3|node|3|node}}
t1,2{3,3,3,3} or 2t{3,3,3,3}
Bitruncated 5-simplex (bittix) |
|---|
| 6 | node_1|3|node|3|node_1|3|node|3|node}}
t0,2{3,3,3,3} or rr{3,3,3,3}
Cantellated 5-simplex (sarx) |
|---|
| 7 | node|3|node_1|3|node|3|node_1|3|node}}
t1,3{3,3,3,3} or 2rr{3,3,3,3}
Bicantellated 5-simplex (sibrid) |
|---|
| 8 | node_1|3|node|3|node|3|node_1|3|node}}
t0,3{3,3,3,3}
Runcinated 5-simplex (spix) |
|---|
| 9 | node_1|3|node|3|node|3|node|3|node_1}}
t0,4{3,3,3,3} or 2r2r{3,3,3,3}
Stericated 5-simplex (scad) |
|---|
| 10 | node_1|3|node_1|3|node_1|3|node|3|node}}
t0,1,2{3,3,3,3} or tr{3,3,3,3}
Cantitruncated 5-simplex (garx) |
|---|
| 11 | node|3|node_1|3|node_1|3|node_1|3|node}}
t1,2,3{3,3,3,3} or 2tr{3,3,3,3}
Bicantitruncated 5-simplex (gibrid) |
|---|
| 12 | node_1|3|node_1|3|node|3|node_1|3|node}}
t0,1,3{3,3,3,3}
Runcitruncated 5-simplex (pattix) |
|---|
| 13 | node_1|3|node|3|node_1|3|node_1|3|node}}
t0,2,3{3,3,3,3}
Runcicantellated 5-simplex (pirx) |
|---|
| 14 | node_1|3|node_1|3|node|3|node|3|node_1}}
t0,1,4{3,3,3,3}
Steritruncated 5-simplex (cappix) |
|---|
| 15 | node_1|3|node|3|node_1|3|node|3|node_1}}
t0,2,4{3,3,3,3}
Stericantellated 5-simplex (card) |
|---|
| 16 | node_1|3|node_1|3|node_1|3|node_1|3|node}}
t0,1,2,3{3,3,3,3}
Runcicantitruncated 5-simplex (gippix) |
|---|
| 17 | node_1|3|node_1|3|node_1|3|node|3|node_1}}
t0,1,2,4{3,3,3,3}
Stericantitruncated 5-simplex (cograx) |
|---|
| 18 | node_1|3|node_1|3|node|3|node_1|3|node_1}}
t0,1,3,4{3,3,3,3}
Steriruncitruncated 5-simplex (captid) |
|---|
| 19 | node_1|3|node_1|3|node_1|3|node_1|3|node_1}}
t0,1,2,3,4{3,3,3,3}
Omnitruncated 5-simplex (gocad) |
|---|
{{Hexateron family}} 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]
- N.W. Johnson: The Theory of Uniform Polytopes and Honeycombs, Ph.D. Dissertation, University of Toronto, 1966
External links- {{KlitzingPolytopes|polytera.htm|5D|uniform polytopes (polytera)}}
Notes1. ^Wiley::Kaleidoscopes: Selected Writings of H.S.M. Coxeter
{{Polytopes}} 1 : 5-polytopes |