8-cubic honeycomb explained

bgcolor=#e7dcc3 colspan=28-cubic honeycomb
bgcolor=#ffffff align=center colspan=2(no image)
TypeRegular 8-honeycomb
Uniform 8-honeycomb
FamilyHypercube honeycomb
Schläfli symbol

t0,8
(8)
Coxeter-Dynkin diagrams


8-face type
7-face type
6-face type
5-face type
4-face type
Cell type
Face type
Face figure
(octahedron)
Edge figure8
(16-cell)
Vertex figure256
(8-orthoplex)
Coxeter group[4,3<sup>6</sup>,4]
Dualself-dual
Propertiesvertex-transitive, edge-transitive, face-transitive, cell-transitive
In geometry, the 8-cubic honeycomb or octeractic honeycomb is the only regular space-filling tessellation (or honeycomb) in Euclidean 8-space.

It is analogous to the square tiling of the plane and to the cubic honeycomb of 3-space, and the tesseractic honeycomb of 4-space.

There are many different Wythoff constructions of this honeycomb. The most symmetric form is regular, with Schläfli symbol . Another form has two alternating hypercube facets (like a checkerboard) with Schläfli symbol . The lowest symmetry Wythoff construction has 256 types of facets around each vertex and a prismatic product Schläfli symbol (8).

Related honeycombs

The [4,3<sup>6</sup>,4],, Coxeter group generates 511 permutations of uniform tessellations, 271 with unique symmetry and 270 with unique geometry. The expanded 8-cubic honeycomb is geometrically identical to the 8-cubic honeycomb.

The 8-cubic honeycomb can be alternated into the 8-demicubic honeycomb, replacing the 8-cubes with 8-demicubes, and the alternated gaps are filled by 8-orthoplex facets.

Quadrirectified 8-cubic honeycomb

A quadrirectified 8-cubic honeycomb,, contains all trirectified 8-orthoplex facets and is the Voronoi tessellation of the D8* lattice. Facets can be identically colored from a doubled

{\tilde{C}}8

×2, [[4,36,4]] symmetry, alternately colored from

{\tilde{C}}8

, [4,3<sup>6</sup>,4] symmetry, three colors from

{\tilde{B}}8

, [4,3<sup>5</sup>,3<sup>1,1</sup>] symmetry, and 4 colors from

{\tilde{D}}8

, [3<sup>1,1</sup>,3<sup>4</sup>,3<sup>1,1</sup>] symmetry.

See also

References