Wikipedia

Order-5-3 square honeycomb

Order-5-3 square honeycomb
Type Regular honeycomb
Schläfli symbol {4,5,3}
Coxeter diagram
Cells {4,5}
Faces {4}
Vertex figure {5,3}
Dual {3,5,4}
Coxeter group [4,5,3]
Properties Regular

In the geometry of hyperbolic 3-space, the order-5-3 square honeycomb or 4,5,3 honeycomb a regular space-filling tessellation (or honeycomb). Each infinite cell consists of a pentagonal tiling whose vertices lie on a 2-hypercycle, each of which has a limiting circle on the ideal sphere.

Geometry edit

The Schläfli symbol of the order-5-3 square honeycomb is {4,5,3}, with three order-4 pentagonal tilings meeting at each edge. The vertex figure of this honeycomb is a dodecahedron, {5,3}.

 
Poincaré disk model
(Vertex centered) 		 
Ideal surface

Related polytopes and honeycombs edit

It is a part of a series of regular polytopes and honeycombs with {p,5,3} Schläfli symbol, and dodecahedral vertex figures:

Order-5-3 pentagonal honeycomb edit

Order-5-3 pentagonal honeycomb
Type Regular honeycomb
Schläfli symbol {5,5,3}
Coxeter diagram        
Cells {5,5}  
Faces {5}
Vertex figure {5,3}
Dual {3,5,5}
Coxeter group [5,5,3]
Properties Regular

In the geometry of hyperbolic 3-space, the order-5-3 pentagonal honeycomb or 5,5,3 honeycomb a regular space-filling tessellation (or honeycomb). Each infinite cell consists of an order-5 pentagonal tiling whose vertices lie on a 2-hypercycle, each of which has a limiting circle on the ideal sphere.

The Schläfli symbol of the order-5-3 pentagonal honeycomb is {5,5,3}, with three order-5 pentagonal tilings meeting at each edge. The vertex figure of this honeycomb is a dodecahedron, {5,3}.

 
Poincaré disk model
(Vertex centered) 		 
Ideal surface

Order-5-3 hexagonal honeycomb edit

Order-5-3 hexagonal honeycomb
Type Regular honeycomb
Schläfli symbol {6,5,3}
Coxeter diagram        
Cells {6,5}  
Faces {6}
Vertex figure {5,3}
Dual {3,5,6}
Coxeter group [6,5,3]
Properties Regular

In the geometry of hyperbolic 3-space, the order-5-3 hexagonal honeycomb or 6,5,3 honeycomb a regular space-filling tessellation (or honeycomb). Each infinite cell consists of an order-5 hexagonal tiling whose vertices lie on a 2-hypercycle, each of which has a limiting circle on the ideal sphere.

The Schläfli symbol of the order-5-3 hexagonal honeycomb is {6,5,3}, with three order-5 hexagonal tilings meeting at each edge. The vertex figure of this honeycomb is a dodecahedron, {5,3}.

 
Poincaré disk model
(Vertex centered) 		 
Ideal surface

Order-5-3 heptagonal honeycomb edit

Order-5-3 heptagonal honeycomb
Type Regular honeycomb
Schläfli symbol {7,5,3}
Coxeter diagram        
Cells {7,5}  
Faces {7}
Vertex figure {5,3}
Dual {3,5,7}
Coxeter group [7,5,3]
Properties Regular

In the geometry of hyperbolic 3-space, the order-5-3 heptagonal honeycomb or 7,5,3 honeycomb a regular space-filling tessellation (or honeycomb). Each infinite cell consists of an order-5 heptagonal tiling whose vertices lie on a 2-hypercycle, each of which has a limiting circle on the ideal sphere.

The Schläfli symbol of the order-5-3 heptagonal honeycomb is {7,5,3}, with three order-5 heptagonal tilings meeting at each edge. The vertex figure of this honeycomb is a dodecahedron, {5,3}.

 
Poincaré disk model
(Vertex centered) 		 
Ideal surface

Order-5-3 octagonal honeycomb edit

Order-5-3 octagonal honeycomb
Type Regular honeycomb
Schläfli symbol {8,5,3}
Coxeter diagram        
Cells {8,5}  
Faces {8}
Vertex figure {5,3}
Dual {3,5,8}
Coxeter group [8,5,3]
Properties Regular

In the geometry of hyperbolic 3-space, the order-5-3 octagonal honeycomb or 8,5,3 honeycomb a regular space-filling tessellation (or honeycomb). Each infinite cell consists of an order-5 octagonal tiling whose vertices lie on a 2-hypercycle, each of which has a limiting circle on the ideal sphere.

The Schläfli symbol of the order-5-3 octagonal honeycomb is {8,5,3}, with three order-5 octagonal tilings meeting at each edge. The vertex figure of this honeycomb is a dodecahedron, {5,3}.

 
Poincaré disk model
(Vertex centered)

Order-5-3 apeirogonal honeycomb edit

Order-5-3 apeirogonal honeycomb
Type Regular honeycomb
Schläfli symbol {∞,5,3}
Coxeter diagram        
Cells {∞,5}  
Faces Apeirogon {∞}
Vertex figure {5,3}
Dual {3,5,∞}
Coxeter group [∞,5,3]
Properties Regular

In the geometry of hyperbolic 3-space, the order-5-3 apeirogonal honeycomb or ∞,5,3 honeycomb a regular space-filling tessellation (or honeycomb). Each infinite cell consists of an order-5 apeirogonal tiling whose vertices lie on a 2-hypercycle, each of which has a limiting circle on the ideal sphere.

The Schläfli symbol of the apeirogonal tiling honeycomb is {∞,5,3}, with three order-5 apeirogonal tilings meeting at each edge. The vertex figure of this honeycomb is a dodecahedron, {5,3}.

The "ideal surface" projection below is a plane-at-infinity, in the Poincaré half-space model of H3. It shows an Apollonian gasket pattern of circles inside a largest circle.

 
Poincaré disk model
(Vertex centered) 		 
Ideal surface

See also edit

References edit

  • Coxeter, Regular Polytopes, 3rd. ed., Dover Publications, 1973. ISBN 0-486-61480-8. (Tables I and II: Regular polytopes and honeycombs, pp. 294–296)
  • The Beauty of Geometry: Twelve Essays (1999), Dover Publications, LCCN 99-35678, ISBN 0-486-40919-8 (Chapter 10, Regular Honeycombs in Hyperbolic Space) Table III
  • Jeffrey R. Weeks The Shape of Space, 2nd edition ISBN 0-8247-0709-5 (Chapters 16–17: Geometries on Three-manifolds I, II)
  • George Maxwell, Sphere Packings and Hyperbolic Reflection Groups, JOURNAL OF ALGEBRA 79,78-97 (1982) [1]
  • Hao Chen, Jean-Philippe Labbé, Lorentzian Coxeter groups and Boyd-Maxwell ball packings, (2013)[2]
  • Visualizing Hyperbolic Honeycombs arXiv:1511.02851 Roice Nelson, Henry Segerman (2015)

External links edit

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