Part of the Atlas of Small Regular Polytopes

Polytope of Type {2,2,2,40}

Atlas Canonical Name {2,2,2,40}*640

Overview

Group
SmallGroup(640,21131)
Rank
5
Schläfli Type
{2,2,2,40}
Vertices, edges, …
2, 2, 2, 40, 40
Order of s0s1s2s3s4
40
Order of s0s1s2s3s4s3s2s1
2
Also known as
if this polytope has a name.

Special Properties

  • Degenerate
  • Universal
  • Orientable
  • Flat

Quotients maximal quotients in bold

2-fold

4-fold

5-fold

8-fold

10-fold

20-fold

Covers minimal covers in bold

2-fold

3-fold

Representations

Permutation Representation (GAP)
s0 := (1,2);;
s1 := (3,4);;
s2 := (5,6);;
s3 := ( 8, 9)(10,11)(12,15)(13,17)(14,16)(18,19)(20,25)(21,27)(22,26)(23,29)(24,28)(31,36)(32,35)(33,38)(34,37)(39,40)(41,44)(42,43)(45,46);;
s4 := ( 7,13)( 8,10)( 9,21)(11,23)(12,16)(14,18)(15,31)(17,33)(19,24)(20,26)(22,28)(25,39)(27,41)(29,34)(30,35)(32,37)(36,45)(38,42)(40,43)(44,46);;
poly := Group([s0,s1,s2,s3,s4]);;
Finitely Presented Group Representation (GAP)
F := FreeGroup("s0","s1","s2","s3","s4");;
s0 := F.1;;  s1 := F.2;;  s2 := F.3;;  s3 := F.4;;  s4 := F.5;;  
rels := [ s0*s0, s1*s1, s2*s2, s3*s3, s4*s4, s0*s1*s0*s1, 
s0*s2*s0*s2, s1*s2*s1*s2, s0*s3*s0*s3, 
s1*s3*s1*s3, s2*s3*s2*s3, s0*s4*s0*s4, 
s1*s4*s1*s4, s2*s4*s2*s4, s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4 ];;
poly := F / rels;;
Permutation Representation (Magma)
s0 := Sym(46)!(1,2);
s1 := Sym(46)!(3,4);
s2 := Sym(46)!(5,6);
s3 := Sym(46)!( 8, 9)(10,11)(12,15)(13,17)(14,16)(18,19)(20,25)(21,27)(22,26)(23,29)(24,28)(31,36)(32,35)(33,38)(34,37)(39,40)(41,44)(42,43)(45,46);
s4 := Sym(46)!( 7,13)( 8,10)( 9,21)(11,23)(12,16)(14,18)(15,31)(17,33)(19,24)(20,26)(22,28)(25,39)(27,41)(29,34)(30,35)(32,37)(36,45)(38,42)(40,43)(44,46);
poly := sub<Sym(46)|s0,s1,s2,s3,s4>;
Finitely Presented Group Representation (Magma)
poly<s0,s1,s2,s3,s4> := Group< s0,s1,s2,s3,s4 | s0*s0, s1*s1, s2*s2, 
s3*s3, s4*s4, s0*s1*s0*s1, s0*s2*s0*s2, 
s1*s2*s1*s2, s0*s3*s0*s3, s1*s3*s1*s3, 
s2*s3*s2*s3, s0*s4*s0*s4, s1*s4*s1*s4, 
s2*s4*s2*s4, s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4 >;