Part of the Atlas of Small Regular Polytopes

Polytope of Type {2,6,6}

Atlas Canonical Name {2,6,6}*1728c

Overview

Group
SmallGroup(1728,47874)
Rank
4
Schläfli Type
{2,6,6}
Vertices, edges, …
2, 72, 216, 72
Order of s0s1s2s3
12
Order of s0s1s2s3s2s1
2
Also known as
if this polytope has a name.

Special Properties

  • Degenerate
  • Universal
  • Orientable
  • Flat

Quotients maximal quotients in bold

3-fold

4-fold

6-fold

9-fold

12-fold

18-fold

24-fold

36-fold

72-fold

108-fold

Covers minimal covers in bold

None in this atlas.

Representations

Permutation Representation (GAP)
s0 := (1,2);;
s1 := ( 4, 5)( 7,11)( 8,13)( 9,12)(10,14)(16,17)(19,23)(20,25)(21,24)(22,26)(28,29)(31,35)(32,37)(33,36)(34,38);;
s2 := ( 3, 7)( 4, 8)( 5,10)( 6, 9)(13,14)(15,31)(16,32)(17,34)(18,33)(19,27)(20,28)(21,30)(22,29)(23,35)(24,36)(25,38)(26,37);;
s3 := ( 3,18)( 4,16)( 5,17)( 6,15)( 7,22)( 8,20)( 9,21)(10,19)(11,26)(12,24)(13,25)(14,23)(27,30)(31,34)(35,38);;
poly := Group([s0,s1,s2,s3]);;
Finitely Presented Group Representation (GAP)
F := FreeGroup("s0","s1","s2","s3");;
s0 := F.1;;  s1 := F.2;;  s2 := F.3;;  s3 := F.4;;  
rels := [ s0*s0, s1*s1, s2*s2, s3*s3, s0*s1*s0*s1, 
s0*s2*s0*s2, s0*s3*s0*s3, s1*s3*s1*s3, 
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2, 
s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3, 
s1*s2*s3*s1*s2*s3*s2*s3*s1*s2*s1*s2*s3*s1*s2*s3*s2*s3*s1*s2, 
s2*s1*s2*s3*s1*s2*s1*s2*s3*s2*s1*s2*s1*s2*s1*s3*s2*s1*s2*s3*s2*s1, 
s1*s3*s2*s3*s2*s3*s2*s1*s2*s3*s2*s1*s3*s2*s3*s2*s3*s2*s1*s2*s3*s2 ];;
poly := F / rels;;
Permutation Representation (Magma)
s0 := Sym(38)!(1,2);
s1 := Sym(38)!( 4, 5)( 7,11)( 8,13)( 9,12)(10,14)(16,17)(19,23)(20,25)(21,24)(22,26)(28,29)(31,35)(32,37)(33,36)(34,38);
s2 := Sym(38)!( 3, 7)( 4, 8)( 5,10)( 6, 9)(13,14)(15,31)(16,32)(17,34)(18,33)(19,27)(20,28)(21,30)(22,29)(23,35)(24,36)(25,38)(26,37);
s3 := Sym(38)!( 3,18)( 4,16)( 5,17)( 6,15)( 7,22)( 8,20)( 9,21)(10,19)(11,26)(12,24)(13,25)(14,23)(27,30)(31,34)(35,38);
poly := sub<Sym(38)|s0,s1,s2,s3>;
Finitely Presented Group Representation (Magma)
poly<s0,s1,s2,s3> := Group< s0,s1,s2,s3 | s0*s0, s1*s1, s2*s2, 
s3*s3, s0*s1*s0*s1, s0*s2*s0*s2, s0*s3*s0*s3, 
s1*s3*s1*s3, s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2, 
s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3, 
s1*s2*s3*s1*s2*s3*s2*s3*s1*s2*s1*s2*s3*s1*s2*s3*s2*s3*s1*s2, 
s2*s1*s2*s3*s1*s2*s1*s2*s3*s2*s1*s2*s1*s2*s1*s3*s2*s1*s2*s3*s2*s1, 
s1*s3*s2*s3*s2*s3*s2*s1*s2*s3*s2*s1*s3*s2*s3*s2*s3*s2*s1*s2*s3*s2 >;