Truncated triapeirogonal tiling
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Truncated triapeirogonal tiling | |
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![]() Poincaré disk model of the hyperbolic plane | |
Type | Hyperbolic uniform tiling |
Vertex configuration | 4.6.∞ |
Schläfli symbol | tr{∞,3} or |
Wythoff symbol | 2 ∞ 3 | |
Coxeter diagram | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Symmetry group | [∞,3], (*∞32) |
Dual | Order 3-infinite kisrhombille |
Properties | Vertex-transitive |
In geometry, the truncated triapeirogonal tiling is a uniform tiling of the hyperbolic plane with a Schläfli symbol of tr{∞,3}.
Symmetry
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The dual of this tiling represents the fundamental domains of [∞,3], *∞32 symmetry. There are 3 small index subgroup constructed from [∞,3] by mirror removal and alternation. In these images fundamental domains are alternately colored black and white, and mirrors exist on the boundaries between colors.
A special index 4 reflective subgroup, is [(∞,∞,3)], (*∞∞3), and its direct subgroup [(∞,∞,3)]+, (∞∞3), and semidirect subgroup [(∞,∞,3+)], (3*∞).[1] Given [∞,3] with generating mirrors {0,1,2}, then its index 4 subgroup has generators {0,121,212}.
An index 6 subgroup constructed as [∞,3*], becomes [(∞,∞,∞)], (*∞∞∞).
Index | 1 | 2 | 3 | 4 | 6 | 8 | 12 | 24 | ||
---|---|---|---|---|---|---|---|---|---|---|
Diagrams | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
Coxeter (orbifold) | [∞,3]![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() (*∞32) | [1+,∞,3]![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() (*∞33) | [∞,3+]![]() ![]() ![]() ![]() ![]() (3*∞) | [∞,∞] (*∞∞2) | [(∞,∞,3)] (*∞∞3) | [∞,3*]![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() (*∞3) | [∞,1+,∞] (*(∞2)2) | [(∞,1+,∞,3)] (*(∞3)2) | [1+,∞,∞,1+] (*∞4) | [(∞,∞,3*)] (*∞6) |
Direct subgroups | ||||||||||
Index | 2 | 4 | 6 | 8 | 12 | 16 | 24 | 48 | ||
Diagrams | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
Coxeter (orbifold) | [∞,3]+![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() (∞32) | [∞,3+]+![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() (∞33) | [∞,∞]+ (∞∞2) | [(∞,∞,3)]+ (∞∞3) | [∞,3*]+![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() (∞3) | [∞,1+,∞]+ (∞2)2 | [(∞,1+,∞,3)]+ (∞3)2 | [1+,∞,∞,1+]+ (∞4) | [(∞,∞,3*)]+ (∞6) |
Related polyhedra and tiling
[edit]Paracompact uniform tilings in [∞,3] family | ||||||||||
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Symmetry: [∞,3], (*∞32) | [∞,3]+ (∞32) | [1+,∞,3] (*∞33) | [∞,3+] (3*∞) | |||||||
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![]() ![]() ![]() ![]() ![]() = ![]() ![]() ![]() ![]() | ![]() ![]() ![]() ![]() ![]() = ![]() ![]() ![]() ![]() | ![]() ![]() ![]() ![]() ![]() = ![]() ![]() ![]() ![]() | ![]() ![]() ![]() ![]() ![]() | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | ![]() ![]() ![]() ![]() ![]() = ![]() ![]() ![]() ![]() | ||||
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
{∞,3} | t{∞,3} | r{∞,3} | t{3,∞} | {3,∞} | rr{∞,3} | tr{∞,3} | sr{∞,3} | h{∞,3} | h2{∞,3} | s{3,∞} |
Uniform duals | ||||||||||
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![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ||
V∞3 | V3.∞.∞ | V(3.∞)2 | V6.6.∞ | V3∞ | V4.3.4.∞ | V4.6.∞ | V3.3.3.3.∞ | V(3.∞)3 | V3.3.3.3.3.∞ |
This tiling can be considered a member of a sequence of uniform patterns with vertex figure (4.6.2p) and Coxeter-Dynkin diagram . For p < 6, the members of the sequence are omnitruncated polyhedra (zonohedrons), shown below as spherical tilings. For p > 6, they are tilings of the hyperbolic plane, starting with the truncated triheptagonal tiling.
*n32 symmetry mutation of omnitruncated tilings: 4.6.2n | ||||||||||||
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Sym. *n32 [n,3] | Spherical | Euclid. | Compact hyperb. | Paraco. | Noncompact hyperbolic | |||||||
*232 [2,3] | *332 [3,3] | *432 [4,3] | *532 [5,3] | *632 [6,3] | *732 [7,3] | *832 [8,3] | *∞32 [∞,3] | [12i,3] | [9i,3] | [6i,3] | [3i,3] | |
Figures | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
Config. | 4.6.4 | 4.6.6 | 4.6.8 | 4.6.10 | 4.6.12 | 4.6.14 | 4.6.16 | 4.6.∞ | 4.6.24i | 4.6.18i | 4.6.12i | 4.6.6i |
Duals | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
Config. | V4.6.4 | V4.6.6 | V4.6.8 | V4.6.10 | V4.6.12 | V4.6.14 | V4.6.16 | V4.6.∞ | V4.6.24i | V4.6.18i | V4.6.12i | V4.6.6i |
See also
[edit]References
[edit]- John H. Conway, Heidi Burgiel, Chaim Goodman-Strauss, 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.