Order-6 hexagonal tiling
In geometry, the order-6 hexagonal tiling is a regular tiling of the hyperbolic plane. It has Schläfli symbol of {6,6} and is self-dual.
| Order-6 hexagonal tiling | |
|---|---|
|  Poincaré disk model of the hyperbolic plane | |
| Type | Hyperbolic regular tiling | 
| Vertex configuration | 66 | 
| Schläfli symbol | {6,6} | 
| Wythoff symbol | 6 | 6 2 | 
| Coxeter diagram |      | 
| Symmetry group | [6,6], (*662) | 
| Dual | self dual | 
| Properties | Vertex-transitive, edge-transitive, face-transitive | 
Symmetry
    
This tiling represents a hyperbolic kaleidoscope of 6 mirrors defining a regular hexagon fundamental domain. This symmetry by orbifold notation is called *333333 with 6 order-3 mirror intersections. In Coxeter notation can be represented as [6*,6], removing two of three mirrors (passing through the hexagon center) in the [6,6] symmetry.
The even/odd fundamental domains of this kaleidoscope can be seen in the alternating colorings of the 

 tiling:
 tiling:
Related polyhedra and tiling
    
This tiling is topologically related as a part of sequence of regular tilings with order-6 vertices with Schläfli symbol {n,6}, and Coxeter diagram 



 , progressing to infinity.
, progressing to infinity.
| Regular tilings {n,6} | ||||||||
|---|---|---|---|---|---|---|---|---|
| Spherical | Euclidean | Hyperbolic tilings | ||||||
|  {2,6}      |  {3,6}      |  {4,6}      |  {5,6}      |  {6,6}      |  {7,6}      |  {8,6}      | ... |  {∞,6}      | 
This tiling is topologically related as a part of sequence of regular tilings with hexagonal faces, starting with the hexagonal tiling, with Schläfli symbol {6,n}, and Coxeter diagram 



 , progressing to infinity.
, progressing to infinity.
| *n62 symmetry mutation of regular tilings: {6,n} | ||||||||
|---|---|---|---|---|---|---|---|---|
| Spherical | Euclidean | Hyperbolic tilings | ||||||
|  {6,2} |  {6,3} |  {6,4} |  {6,5} |  {6,6} |  {6,7} |  {6,8} | ... |  {6,∞} | 
| Uniform hexahexagonal tilings | ||||||
|---|---|---|---|---|---|---|
| Symmetry: [6,6], (*662) | ||||||
|      =    =      |      =    =      |      =    =      |      =    =      |      =    =      |      =    =      |      =    =      | 
|  |  |  |  |  |  |  | 
| {6,6} = h{4,6} | t{6,6} = h2{4,6} | r{6,6} {6,4} | t{6,6} = h2{4,6} | {6,6} = h{4,6} | rr{6,6} r{6,4} | tr{6,6} t{6,4} | 
| Uniform duals | ||||||
|      |      |      |      |      |      |      | 
|  |  |  |  |  |  |  | 
| V66 | V6.12.12 | V6.6.6.6 | V6.12.12 | V66 | V4.6.4.6 | V4.12.12 | 
| Alternations | ||||||
| [1+,6,6] (*663) | [6+,6] (6*3) | [6,1+,6] (*3232) | [6,6+] (6*3) | [6,6,1+] (*663) | [(6,6,2+)] (2*33) | [6,6]+ (662) | 
|      =    |      |      =    |      |      =    |      |      | 
|      |      |      |      |      |      |      | 
|  |  |  |  |  | ||
| h{6,6} | s{6,6} | hr{6,6} | s{6,6} | h{6,6} | hrr{6,6} | sr{6,6} | 
| Similar H2 tilings in *3232 symmetry | ||||||||
|---|---|---|---|---|---|---|---|---|
| Coxeter diagrams |      |      |      |      | ||||
|     |    |    |     |    |    |     |     | |
|    |    |    |    | |||||
| Vertex figure | 66 | (3.4.3.4)2 | 3.4.6.6.4 | 6.4.6.4 | ||||
| Image |  |  |  |  | ||||
| Dual |  |  | ||||||
References
    
- John H. Conway, Heidi Burgiel, Chaim Goodman-Strass, The Symmetries of Things 2008, ISBN 978-1-56881-220-5 (Chapter 19, The Hyperbolic Archimedean Tessellations)
- "Chapter 10: Regular honeycombs in hyperbolic space". The Beauty of Geometry: Twelve Essays. Dover Publications. 1999. ISBN 0-486-40919-8. LCCN 99035678.
See also
    
|  | Wikimedia Commons has media related to Order-6 hexagonal tiling. | 


