Iii_symmetry

Order-3 apeirogonal tiling

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In geometry, the order-3 apeirogonal tiling is a regular tiling of the hyperbolic plane. It is represented by the Schläfli symbol {∞,3}, having three regular apeirogons around each vertex. Each apeirogon is inscribed in a horocycle.

Order-3 apeirogonal tiling
Poincaré disk model of the hyperbolic plane
Type	Hyperbolic regular tiling
Vertex configuration	∞³
Schläfli symbol	{∞,3} t{∞,∞} t(∞,∞,∞)
Wythoff symbol	3 \| ∞ 2 2 ∞ \| ∞ ∞ ∞ ∞ \|
Coxeter diagram
Symmetry group	[∞,3], (∞32) [∞,∞], (∞∞2) [(∞,∞,∞)], (*∞∞∞)
Dual	Infinite-order triangular tiling
Properties	Vertex-transitive, edge-transitive, face-transitive

The order-2 apeirogonal tiling represents an infinite dihedron in the Euclidean plane as {∞,2}.

Uniform colorings

Like the Euclidean hexagonal tiling, there are 3 uniform colorings of the order-3 apeirogonal tiling, each from different reflective triangle group domains:

More information Regular, Truncations ...

Related polyhedra and tilings

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

More information Spherical, Euclidean ...

More information Symmetry: [∞,3], (*∞32), [∞,3]+ (∞32) ...

More information Dual tilings, Alternations ...

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Subgroups of [(∞,∞,∞)] (*∞∞∞)
Index	1	2			4
Diagram
Coxeter	[(∞,∞,∞)]	[(1⁺,∞,∞,∞)] =	[(∞,1⁺,∞,∞)] =	[(∞,∞,1⁺,∞)] =	[(1⁺,∞,1⁺,∞,∞)]	[(∞⁺,∞⁺,∞)]
Orbifold	*∞∞∞	*∞∞∞∞			∞*∞∞∞	∞∞∞×
Diagram
Coxeter		[(∞,∞⁺,∞)]	[(∞,∞,∞⁺)]	[(∞⁺,∞,∞)]	[(∞,1⁺,∞,1⁺,∞)]	[(1⁺,∞,∞,1⁺,∞)] =
Orbifold		∞*∞			∞*∞∞∞
Direct subgroups
Index	2	4			8
Diagram
Coxeter	[(∞,∞,∞)]⁺	[(∞,∞⁺,∞)]⁺ =	[(∞,∞,∞⁺)]⁺ =	[(∞⁺,∞,∞)]⁺ =	[(∞,1⁺,∞,1⁺,∞)]⁺ =
Orbifold	∞∞∞	∞∞∞∞			∞∞∞∞∞∞
Radical subgroups
Index	∞			∞
Diagram
Coxeter	[(∞,∞*,∞)]	[(∞,∞,∞*)]	[(∞*,∞,∞)]	[(∞,∞*,∞)]⁺	[(∞,∞,∞*)]⁺	[(∞*,∞,∞)]⁺
Orbifold	∞*∞^∞			∞^∞

*n32 symmetry mutation of regular tilings: {n,3} v t e
Spherical				Euclidean	Compact hyperb.		Paraco.	Noncompact hyperbolic

{2,3}	{3,3}	{4,3}	{5,3}	{6,3}	{7,3}	{8,3}	{∞,3}	{12i,3}	{9i,3}	{6i,3}	{3i,3}

Paracompact uniform tilings in [∞,3] family v t e
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∞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.∞

Paracompact uniform tilings in [∞,∞] family v t e
= =	= =	= =	= =	= =	=	=

{∞,∞}	t{∞,∞}	r{∞,∞}	2t{∞,∞}=t{∞,∞}	2r{∞,∞}={∞,∞}	rr{∞,∞}	tr{∞,∞}
Dual tilings


V∞^∞	V∞.∞.∞	V(∞.∞)²	V∞.∞.∞	V∞^∞	V4.∞.4.∞	V4.4.∞
Alternations
[1⁺,∞,∞] (*∞∞2)	[∞⁺,∞] (∞*∞)	[∞,1⁺,∞] (*∞∞∞∞)	[∞,∞⁺] (∞*∞)	[∞,∞,1⁺] (*∞∞2)	[(∞,∞,2⁺)] (2*∞∞)	[∞,∞]⁺ (2∞∞)


h{∞,∞}	s{∞,∞}	hr{∞,∞}	s{∞,∞}	h₂{∞,∞}	hrr{∞,∞}	sr{∞,∞}
Alternation duals


V(∞.∞)^∞	V(3.∞)³	V(∞.4)⁴	V(3.∞)³	V∞^∞	V(4.∞.4)²	V3.3.∞.3.∞

Paracompact uniform tilings in [(∞,∞,∞)] family v t e



(∞,∞,∞) h{∞,∞}	r(∞,∞,∞) h₂{∞,∞}	(∞,∞,∞) h{∞,∞}	r(∞,∞,∞) h₂{∞,∞}	(∞,∞,∞) h{∞,∞}	r(∞,∞,∞) r{∞,∞}	t(∞,∞,∞) t{∞,∞}
Dual tilings

V∞^∞	V∞.∞.∞.∞	V∞^∞	V∞.∞.∞.∞	V∞^∞	V∞.∞.∞.∞	V∞.∞.∞
Alternations
[(1⁺,∞,∞,∞)] (*∞∞∞∞)	[∞⁺,∞,∞)] (∞*∞)	[∞,1⁺,∞,∞)] (*∞∞∞∞)	[∞,∞⁺,∞)] (∞*∞)	[(∞,∞,∞,1⁺)] (*∞∞∞∞)	[(∞,∞,∞⁺)] (∞*∞)	[∞,∞,∞)]⁺ (∞∞∞)


Alternation duals

V(∞.∞)^∞	V(∞.4)⁴	V(∞.∞)^∞	V(∞.4)⁴	V(∞.∞)^∞	V(∞.4)⁴	V3.∞.3.∞.3.∞

Iii_symmetry

Order-3 apeirogonal tiling

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Uniform colorings

Symmetry

Related polyhedra and tilings

See also

References

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Regular	Truncations
{∞,3}	t_0,1{∞,∞}	t_1,2{∞,∞}	t{∞^[3]}
Hyperbolic triangle groups
[∞,3]	[∞,∞]		[(∞,∞,∞)]