Part of the Atlas of Small Regular Polytopes

Polytope of Type {4,20}

Atlas Canonical Name {4,20}*1920a

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Overview

Group
SmallGroup(1920,240505)
Rank
3
Schläfli Type
{4,20}
Vertices, edges, …
48, 480, 240
Order of s0s1s2
12
Order of s0s1s2s1
6
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

16-fold

60-fold

120-fold

240-fold

Covers minimal covers in bold

None in this atlas.

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*s0*(s2*s1*s0*s1)^2*s2*s1> of order 2

120 facets

24 vertex figures

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

120 facets

24 vertex figures

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

120 facets

24 vertex figures

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

120 facets

24 vertex figures

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

120 facets

24 vertex figures

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

128 facets

24 vertex figures

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

80 facets

16 vertex figures

P/N, where N=<s2*s1*s0*s1*s2*s1*s0*(s2*s1)^3*s2, s0*s2*s1*s0*s1*s2*s1*s0*(s2*s1)^3*s0*s2> of order 4

60 facets

12 vertex figures

P/N, where N=<s0*s2*s1*s0*s1*s2*s1*s0*(s2*s1)^3*s0*s2, s0*s2*s1*s0*(s2*s1)^3*(s0*s2*s1)^2> of order 4

60 facets

12 vertex figures

P/N, where N=<(s0*s1)^2, s0*s2*s1*s0*s1*s2*s1*s0*(s2*s1)^3*s0*s2> of order 4

68 facets

12 vertex figures

P/N, where N=<(s0*s1)^2*(s2*s1*s0)^2*(s1*s2)^2> of order 5

48 facets

16 vertex figures

P/N, where N=<s1*s0*(s2*s1)^2*s0*s2*s1*s2, s1*s0*s1*s2*s1*s0*(s2*s1)^3> of order 6

40 facets

8 vertex figures

P/N, where N=<s0*s1*s0*s2*s1*s0*s1*s2*s1*s0, s0*s1*s0*(s2*s1)^2*s0*(s1*s2)^2*s1*s0> of order 6

48 facets

8 vertex figures

P/N, where N=<s0*s1*s0*(s2*s1)^2*s0*(s1*s2)^2*s1*s0, s0*s1*s0*(s2*s1)^3*(s0*s2*s1)^2*s2> of order 6

40 facets

8 vertex figures

P/N, where N=<s1*s0*s1*s2*s1*s0*s2*s1*s2> of order 6

40 facets

8 vertex figures

P/N, where N=<(s1*s2)^4, (s0*s1)^2*s2*s1*s0*(s2*s1)^3*s0> of order 10

24 facets

8 vertex figures

P/N, where N=<(s0*s1)^2*(s2*s1*s0)^2*(s1*s2)^2, s0*(s1*s0*s2)^2*s1*s0*(s2*s1)^3*s2> of order 10

24 facets

8 vertex figures

P/N, where N=<(s0*s1)^2, (s2*s1*s0)^2*(s1*s2)^2> of order 10

32 facets

8 vertex figures

P/N, where N=<s0*s1*s2*s1*s0*(s1*s2)^4> of order 10

24 facets

8 vertex figures

P/N, where N=<s0*(s2*s1)^2*s0*(s1*s2)^2, s1*s0*(s2*s1)^2*s0*(s1*s2)^2*s1> of order 12

20 facets

4 vertex figures

Representations

Permutation Representation (GAP)
s0 := ( 2, 4)( 3, 5)(10,13);;
s1 := ( 1, 4)( 2, 7)( 3, 8)( 5, 6)(10,11)(12,13);;
s2 := ( 1, 8)( 2, 4)( 3, 5)( 6, 7)( 9,11)(10,13);;
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, s0*s1*s0*s1*s0*s1*s0*s1, 
s2*s0*s1*s2*s1*s2*s0*s1*s2*s1*s2*s0*s1*s2*s1*s2*s0*s1*s2*s1, 
s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1, 
s1*s2*s1*s0*s1*s2*s0*s1*s2*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s0*s1*s2*s1*s2*s1*s0 ];;
poly := F / rels;;
Permutation Representation (Magma)
s0 := Sym(13)!( 2, 4)( 3, 5)(10,13);
s1 := Sym(13)!( 1, 4)( 2, 7)( 3, 8)( 5, 6)(10,11)(12,13);
s2 := Sym(13)!( 1, 8)( 2, 4)( 3, 5)( 6, 7)( 9,11)(10,13);
poly := sub<Sym(13)|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, s0*s1*s0*s1*s0*s1*s0*s1, 
s2*s0*s1*s2*s1*s2*s0*s1*s2*s1*s2*s0*s1*s2*s1*s2*s0*s1*s2*s1, 
s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1, 
s1*s2*s1*s0*s1*s2*s0*s1*s2*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s0*s1*s2*s1*s2*s1*s0 >; 

References

None.

to this polytope.

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