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Truncated order-8 triangular tiling
Truncated order-8 triangular tiling
Poincaré disk model of the hyperbolic plane
TypeHyperbolic uniform tiling
Vertex configuration8.6.6
Schläfli symbolt{3,8}
Wythoff symbol2 8 | 34 3 3 |
Coxeter diagram
Symmetry group[8,3], (*832)[(4,3,3)], (*433)
DualOctakis octagonal tiling
PropertiesVertex-transitive

In geometry, the truncated order-8 triangular tiling is a semiregular tiling of the hyperbolic plane. There are two hexagons and one octagon on each vertex. It has Schläfli symbol of t{3,8}.

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Uniform colors

The half symmetry [1+,8,3] = [(4,3,3)] can be shown with alternating two colors of hexagonsDual tiling

Symmetry

The dual of this tiling represents the fundamental domains of *443 symmetry. It only has one subgroup 443, replacing mirrors with gyration points.

This symmetry can be doubled to 832 symmetry by adding a bisecting mirror to the fundamental domain.

Small index subgroups of [(4,3,3)], (*433)
TypeReflectionalRotational
Index12
Diagram
Coxeter(orbifold)[(4,3,3)] = (*433)[(4,3,3)]+ = (433)

From a Wythoff construction there are ten hyperbolic uniform tilings that can be based from the regular octagonal tiling.

Uniform octagonal/triangular tilings
  • v
  • t
  • e
Symmetry: [8,3], (*832)[8,3]+(832)[1+,8,3](*443)[8,3+](3*4)
{8,3}t{8,3}r{8,3}t{3,8}{3,8}rr{8,3}s2{3,8}tr{8,3}sr{8,3}h{8,3}h2{8,3}s{3,8}
or or
Uniform duals
V83V3.16.16V3.8.3.8V6.6.8V38V3.4.8.4V4.6.16V34.8V(3.4)3V8.6.6V35.4

It can also be generated from the (4 3 3) hyperbolic tilings:

Uniform (4,3,3) tilings
  • v
  • t
  • e
Symmetry: [(4,3,3)], (*433)[(4,3,3)]+, (433)
h{8,3}t0(4,3,3)r{3,8}1/2t0,1(4,3,3)h{8,3}t1(4,3,3)h2{8,3}t1,2(4,3,3){3,8}1/2t2(4,3,3)h2{8,3}t0,2(4,3,3)t{3,8}1/2t0,1,2(4,3,3)s{3,8}1/2s(4,3,3)
Uniform duals
V(3.4)3V3.8.3.8V(3.4)3V3.6.4.6V(3.3)4V3.6.4.6V6.6.8V3.3.3.3.3.4

This hyperbolic tiling is topologically related as a part of sequence of uniform truncated polyhedra with vertex configurations (n.6.6), and [n,3] Coxeter group symmetry.

*n32 symmetry mutation of truncated tilings: n.6.6
  • v
  • t
  • e
Sym.*n42[n,3]SphericalEuclid.CompactParac.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]
Truncatedfigures
Config.2.6.63.6.64.6.65.6.66.6.67.6.68.6.6∞.6.612i.6.69i.6.66i.6.6
n-kisfigures
Config.V2.6.6V3.6.6V4.6.6V5.6.6V6.6.6V7.6.6V8.6.6V∞.6.6V12i.6.6V9i.6.6V6i.6.6
*n32 symmetry mutation of omnitruncated tilings: 6.8.2n
  • v
  • t
  • e
Sym.*n43[(n,4,3)]SphericalCompact hyperbolicParaco.
*243[4,3]*343[(3,4,3)]*443[(4,4,3)]*543[(5,4,3)]*643[(6,4,3)]*743[(7,4,3)]*843[(8,4,3)]*∞43[(∞,4,3)]
Figures
Config.4.8.66.8.68.8.610.8.612.8.614.8.616.8.6∞.8.6
Duals
Config.V4.8.6V6.8.6V8.8.6V10.8.6V12.8.6V14.8.6V16.8.6V6.8.∞

See also

Wikimedia Commons has media related to Uniform tiling 6-6-8.
  • 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.