Order-4 square hosohedral honeycomb
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In geometry, the order-4 square hosohedral honeycomb is a regular space-filling tessellation (or honeycomb) with Schläfli symbol {2,4,4}. It has 4 square hosohedra {2,4} around each edge. In other words, it is a packing of infinitely tall square columns. It is a degenerate honeycomb in Euclidean space, but can be seen as a projection onto the sphere. Its vertex figure, a square tiling is seen on each hemisphere.
| Order-4 square hosohedral honeycomb | |
|---|---|
Centrally projected onto a sphere | |
| Type | Degenerate regular honeycomb |
| Schläfli symbol | {2,4,4} |
| Coxeter diagrams |      |
| Cells | {2,4}  |
| Faces | {2} |
| Edge figure | {4} |
| Vertex figure | {4,4} |
| Dual | Order-2 square tiling honeycomb |
| Coxeter group | [2,4,4] |
| Properties | Regular |
Images
Stereographic projections of spherical projection, with all edges being projected into circles.
 Centered on pole |
 Centered on equator |
Related honeycombs
Summarize
Perspective
It is a part of a sequence of honeycombs with a square tiling vertex figure:
Truncated order-4 square hosohedral honeycomb
| Order-2 square tiling honeycomb Truncated order-4 square hosohedral honeycomb  Partial tessellation with alternately colored cubes | |
|---|---|
| Type | uniform convex honeycomb |
| Schläfli symbol | {4,4}×{} |
| Coxeter diagrams | |
| Cells | {3,4}  |
| Faces | {4} |
| Vertex figure | Square pyramid |
| Dual | |
| Coxeter group | [2,4,4] |
| Properties | Uniform |
The {2,4,4} honeycomb can be truncated as t{2,4,4} or {}×{4,4}, Coxeter diagram , seen as a layer of cubes, partially shown here with alternately colored cubic cells. Thorold Gosset identified this semiregular infinite honeycomb as a cubic semicheck.
The alternation of this honeycomb, 
, consists of infinite square pyramids and infinite tetrahedrons, between 2 square tilings.
See also
References
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