5-cubic honeycomb

5-cubic honeycomb
(no image)
TypeRegular 5-space honeycomb
Uniform 5-honeycomb
FamilyHypercube honeycomb
Schläfli symbol{4,33,4}
t0,5{4,33,4}
{4,3,3,31,1}
{4,3,4}×{∞}
{4,3,4}×{4,4}
{4,3,4}×{∞}(2)
{4,4}(2)×{∞}
{∞}(5)
Coxeter-Dynkin diagrams















5-face type{4,33} (5-cube)
4-face type{4,3,3} (tesseract)
Cell type{4,3} (cube)
Face type{4} (square)
Face figure{4,3} (octahedron)
Edge figure8 {4,3,3} (16-cell)
Vertex figure32 {4,33} (5-orthoplex)
Coxeter group
[4,33,4]
Dualself-dual
Propertiesvertex-transitive, edge-transitive, face-transitive, cell-transitive

In geometry, the 5-cubic honeycomb or penteractic honeycomb is the only regular space-filling tessellation (or honeycomb) in Euclidean 5-space. Four 5-cubes meet at each cubic cell, and it is more explicitly called an order-4 penteractic honeycomb.

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.

Constructions

There are many different Wythoff constructions of this honeycomb. The most symmetric form is regular, with Schläfli symbol {4,33,4}. Another form has two alternating 5-cube facets (like a checkerboard) with Schläfli symbol {4,3,3,31,1}. The lowest symmetry Wythoff construction has 32 types of facets around each vertex and a prismatic product Schläfli symbol {∞}(5).

Related polytopes and honeycombs

The [4,33,4], , Coxeter group generates 63 permutations of uniform tessellations, 35 with unique symmetry and 34 with unique geometry. The expanded 5-cubic honeycomb is geometrically identical to the 5-cubic honeycomb.

The 5-cubic honeycomb can be alternated into the 5-demicubic honeycomb, replacing the 5-cubes with 5-demicubes, and the alternated gaps are filled by 5-orthoplex facets.

It is also related to the regular 6-cube which exists in 6-space with three 5-cubes on each cell. This could be considered as a tessellation on the 5-sphere, an order-3 penteractic honeycomb, {4,34}.

The Penrose tilings are 2-dimensional aperiodic tilings that can be obtained as a projection of the 5-cubic honeycomb along a 5-fold rotational axis of symmetry. The vertices correspond to points in the 5-dimensional cubic lattice, and the tiles are formed by connecting points in a predefined manner.[1]

Tritruncated 5-cubic honeycomb

A tritruncated 5-cubic honeycomb, , contains all bitruncated 5-orthoplex facets and is the Voronoi tessellation of the D5* lattice. Facets can be identically colored from a doubled ×2, [[4,33,4]] symmetry, alternately colored from , [4,33,4] symmetry, three colors from , [4,3,3,31,1] symmetry, and 4 colors from , [31,1,3,31,1] symmetry.

See also

Regular and uniform honeycombs in 5-space:

References

SpaceFamily / /
E2Uniform tiling{3[3]}δ333Hexagonal
E3Uniform convex honeycomb{3[4]}δ444
E4Uniform 4-honeycomb{3[5]}δ55524-cell honeycomb
E5Uniform 5-honeycomb{3[6]}δ666
E6Uniform 6-honeycomb{3[7]}δ777222
E7Uniform 7-honeycomb{3[8]}δ888133331
E8Uniform 8-honeycomb{3[9]}δ999152251521
E9Uniform 9-honeycomb{3[10]}δ101010
E10Uniform 10-honeycomb{3[11]}δ111111
En-1Uniform (n-1)-honeycomb{3[n]}δnnn1k22k1k21