7-cubic honeycomb

7-cubic honeycomb
(no image)
Type Regular 7-honeycomb
Uniform 7-honeycomb
Family Hypercube honeycomb
Schläfli symbol {4,35,4}
{4,34,31,1}
{∞}(7)
Coxeter-Dynkin diagrams

7-face type {4,3,3,3,3,3}
6-face type {4,3,3,3,3}
5-face type {4,3,3,3}
4-face type {4,3,3}
Cell type {4,3}
Face type {4}
Face figure {4,3}
(octahedron)
Edge figure 8 {4,3,3}
(16-cell)
Vertex figure 128 {4,35}
(7-orthoplex)
Coxeter group [4,35,4]
Dual self-dual
Properties vertex-transitive, edge-transitive, face-transitive, cell-transitive

The 7-cubic honeycomb or hepteractic honeycomb is the only regular space-filling tessellation (or honeycomb) in Euclidean 7-space.

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

There are many different Wythoff constructions of this honeycomb. The most symmetric form is regular, with Schläfli symbol {4,35,4}. Another form has two alternating 7-cube facets (like a checkerboard) with Schläfli symbol {4,34,31,1}. The lowest symmetry Wythoff construction has 128 types of facets around each vertex and a prismatic product Schläfli symbol {∞}(7).