Part of the Atlas of Small Regular Polytopes

Polytope of Type {5,2,4,18}

Atlas Canonical Name {5,2,4,18}*1440a

Overview

Group
SmallGroup(1440,1593)
Rank
5
Schläfli Type
{5,2,4,18}
Vertices, edges, …
5, 5, 4, 36, 18
Order of s0s1s2s3s4
180
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

3-fold

4-fold

6-fold

9-fold

12-fold

18-fold

Covers minimal covers in bold

None in this atlas.

Representations

Permutation Representation (GAP)
s0 := (2,3)(4,5);;
s1 := (1,2)(3,4);;
s2 := (24,33)(25,34)(26,35)(27,36)(28,37)(29,38)(30,39)(31,40)(32,41);;
s3 := ( 6,24)( 7,26)( 8,25)( 9,31)(10,30)(11,32)(12,28)(13,27)(14,29)(15,33)(16,35)(17,34)(18,40)(19,39)(20,41)(21,37)(22,36)(23,38);;
s4 := ( 6, 9)( 7,11)( 8,10)(12,13)(15,18)(16,20)(17,19)(21,22)(24,27)(25,29)(26,28)(30,31)(33,36)(34,38)(35,37)(39,40);;
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*s2*s0*s2, 
s1*s2*s1*s2, s0*s3*s0*s3, s1*s3*s1*s3, 
s0*s4*s0*s4, s1*s4*s1*s4, s2*s4*s2*s4, 
s2*s3*s2*s3*s2*s3*s2*s3, s2*s3*s4*s3*s2*s3*s4*s3, 
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1, 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(41)!(2,3)(4,5);
s1 := Sym(41)!(1,2)(3,4);
s2 := Sym(41)!(24,33)(25,34)(26,35)(27,36)(28,37)(29,38)(30,39)(31,40)(32,41);
s3 := Sym(41)!( 6,24)( 7,26)( 8,25)( 9,31)(10,30)(11,32)(12,28)(13,27)(14,29)(15,33)(16,35)(17,34)(18,40)(19,39)(20,41)(21,37)(22,36)(23,38);
s4 := Sym(41)!( 6, 9)( 7,11)( 8,10)(12,13)(15,18)(16,20)(17,19)(21,22)(24,27)(25,29)(26,28)(30,31)(33,36)(34,38)(35,37)(39,40);
poly := sub<Sym(41)|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*s2*s0*s2, s1*s2*s1*s2, 
s0*s3*s0*s3, s1*s3*s1*s3, s0*s4*s0*s4, 
s1*s4*s1*s4, s2*s4*s2*s4, s2*s3*s2*s3*s2*s3*s2*s3, 
s2*s3*s4*s3*s2*s3*s4*s3, s0*s1*s0*s1*s0*s1*s0*s1*s0*s1, 
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 >;