Part of the Atlas of Small Regular Polytopes

Polytope of Type {18,7}

Atlas Canonical Name {18,7}*1008c

▶ Play as a twisty puzzle

Overview

Group
SmallGroup(1008,880)
Rank
3
Schläfli Type
{18,7}
Vertices, edges, …
72, 252, 28
Order of s0s1s2
7
Order of s0s1s2s1
14
Also known as
if this polytope has a name.

Special Properties

  • Compact Hyperbolic Quotient
  • Locally Spherical
  • Non-Orientable

Quotients maximal quotients in bold

2-fold

Covers minimal covers in bold

None in this atlas.

Irregular Quotients of which this is a minimal cover

None.

Representations

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

References

None.

to this polytope.

Twisty Puzzle