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Infinite-order triangular tiling
Infinite-order triangular tiling
Poincaré disk model of the hyperbolic plane
TypeHyperbolic regular tiling
Vertex configuration3∞
Schläfli symbol{3,∞}
Wythoff symbol∞ | 3 2
Coxeter diagram
Symmetry group[∞,3], (*∞32)
DualOrder-3 apeirogonal tiling
PropertiesVertex-transitive, edge-transitive, face-transitive

In geometry, the infinite-order triangular tiling is a regular tiling of the hyperbolic plane with a Schläfli symbol of {3,∞}. All vertices are ideal, located at "infinity" and seen on the boundary of the Poincaré hyperbolic disk projection.

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Symmetry

A lower symmetry form has alternating colors, and represented by cyclic symbol {(3,∞,3)}, . The tiling also represents the fundamental domains of the *∞∞∞ symmetry, which can be seen with 3 colors of lines representing 3 mirrors of the construction.

Alternated colored tiling *∞∞∞ symmetryApollonian gasket with *∞∞∞ symmetry

This tiling is topologically related as part of a sequence of regular polyhedra with Schläfli symbol {3,p}.

*n32 symmetry mutation of regular tilings: {3,n}
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SphericalEuclid.Compact hyper.Paraco.Noncompact hyperbolic
3.33334353637383∞312i39i36i33i
Paracompact uniform tilings in [∞,3] family
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Symmetry: [∞,3], (*∞32)[∞,3]+(∞32)[1+,∞,3](*∞33)[∞,3+](3*∞)
= = = = or = or =
{∞,3}t{∞,3}r{∞,3}t{3,∞}{3,∞}rr{∞,3}tr{∞,3}sr{∞,3}h{∞,3}h2{∞,3}s{3,∞}
Uniform duals
V∞3V3.∞.∞V(3.∞)2V6.6.∞V3∞V4.3.4.∞V4.6.∞V3.3.3.3.∞V(3.∞)3V3.3.3.3.3.∞
Paracompact hyperbolic uniform tilings in [(∞,3,3)] family
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Symmetry: [(∞,3,3)], (*∞33)[(∞,3,3)]+, (∞33)
(∞,∞,3)t0,1(∞,3,3)t1(∞,3,3)t1,2(∞,3,3)t2(∞,3,3)t0,2(∞,3,3)t0,1,2(∞,3,3)s(∞,3,3)
Dual tilings
V(3.∞)3V3.∞.3.∞V(3.∞)3V3.6.∞.6V(3.3)∞V3.6.∞.6V6.6.∞V3.3.3.3.3.∞

Other infinite-order triangular tilings

A nonregular infinite-order triangular tiling can be generated by a recursive process from a central triangle as shown here:

See also

Wikimedia Commons has media related to Infinite-order triangular tiling.
  • 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.