Part of the Atlas of Small Regular Polytopes

Polytope of Type {7,2,30}

Atlas Canonical Name {7,2,30}*840

Overview

Group
SmallGroup(840,171)
Rank
4
Schläfli Type
{7,2,30}
Vertices, edges, …
7, 7, 30, 30
Order of s0s1s2s3
210
Order of s0s1s2s3s2s1
2
Also known as
if this polytope has a name.

Special Properties

  • Degenerate
  • Universal
  • Orientable
  • Flat

Quotients maximal quotients in bold

2-fold

3-fold

5-fold

6-fold

10-fold

15-fold

Covers minimal covers in bold

2-fold

Representations

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