Cyclotruncated 7-simplex honeycomb
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In seven-dimensional Euclidean geometry, the cyclotruncated 7-simplex honeycomb is a space-filling tessellation (or honeycomb). The tessellation fills space by 7-simplex, truncated 7-simplex, bitruncated 7-simplex, and tritruncated 7-simplex facets. These facet types occur in proportions of 1:1:1:1 respectively in the whole honeycomb.
| Cyclotruncated 7-simplex honeycomb | |
|---|---|
| (No image) | |
| Type | Uniform honeycomb |
| Family | Cyclotruncated simplectic honeycomb |
| Schläfli symbol | t0,1{3[8]} |
| Coxeter diagram | |
| 7-face types | {36} t0,1{36} t1,2{36} t2,3{36} |
| Vertex figure | Elongated 6-simplex antiprism |
| Symmetry | ×22, [[3[8]]] |
| Properties | vertex-transitive |
Structure
It can be constructed by eight sets of parallel hyperplanes that divide space. The hyperplane intersections generate cyclotruncated 6-simplex honeycomb divisions on each hyperplane.
Related polytopes and honeycombs
This honeycomb is one of 29 unique uniform honeycombs[1] constructed by the Coxeter group, grouped by their extended symmetry of rings within the regular octagon diagram:
| A7 honeycombs | ||||
|---|---|---|---|---|
| Octagon symmetry |
Extended symmetry |
Extended diagram |
Extended group |
Honeycombs |
| a1 |
[3[8]] |
| ||
| d2 |
<[3[8]]> | ×21 |
| |
| p2 |
[[3[8]]] | ×22 | ||
| d4 |
<2[3[8]]> | ×41 |
| |
| p4 |
[2[3[8]]] | ×42 |
| |
| d8 |
[4[3[8]]] | ×8 | ||
| r16 |
[8[3[8]]] | ×16 | ||
See also
Regular and uniform honeycombs in 7-space: