Part of the Atlas of Small Regular Polytopes

Polytope of Type {20,6}

Atlas Canonical Name {20,6}*960a

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Overview

Group
SmallGroup(960,10871)
Rank
3
Schläfli Type
{20,6}
Vertices, edges, …
80, 240, 24
Order of s0s1s2
4
Order of s0s1s2s1
4
Also known as
if this polytope has a name.

Special Properties

  • Compact Hyperbolic Quotient
  • Locally Spherical
  • Orientable

Quotients maximal quotients in bold

2-fold

4-fold

8-fold

60-fold

120-fold

Covers minimal covers in bold

2-fold

Irregular Quotients of which this is a minimal cover

Click an entry to reveal its facets and vertex figures.

P/N, where N=<(s0*s1)^2*s0*s2*(s1*s0)^2*(s2*s1)^2*s2> of order 2

12 facets

40 vertex figures

P/N, where N=<(s0*s1)^2*s2*(s1*s0)^2*(s1*s2)^3> of order 2

12 facets

40 vertex figures

Representations

Permutation Representation (GAP)
s0 := (2,3)(6,7)(8,9);;
s1 := (1,2)(3,4)(5,6)(7,8);;
s2 := (8,9);;
poly := Group([s0,s1,s2]);;
Finitely Presented Group Representation (GAP)
F := FreeGroup("s0","s1","s2");;
s0 := F.1;;  s1 := F.2;;  s2 := F.3;;  
rels := [ s0*s0, s1*s1, s2*s2, s0*s2*s0*s2, s2*s0*s1*s2*s0*s1*s2*s0*s1*s2*s0*s1, 
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2, 
s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1 ];;
poly := F / rels;;
Permutation Representation (Magma)
s0 := Sym(9)!(2,3)(6,7)(8,9);
s1 := Sym(9)!(1,2)(3,4)(5,6)(7,8);
s2 := Sym(9)!(8,9);
poly := sub<Sym(9)|s0,s1,s2>;
Finitely Presented Group Representation (Magma)
poly<s0,s1,s2> := Group< s0,s1,s2 | s0*s0, s1*s1, s2*s2, 
s0*s2*s0*s2, s2*s0*s1*s2*s0*s1*s2*s0*s1*s2*s0*s1, 
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2, 
s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1 >; 

References

None.

to this polytope.

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