Part of the Atlas of Small Regular Polytopes

Polytope of Type {2,4,16}

Atlas Canonical Name {2,4,16}*256b

Overview

Group
SmallGroup(256,26516)
Rank
4
Schläfli Type
{2,4,16}
Vertices, edges, …
2, 4, 32, 16
Order of s0s1s2s3
16
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

4-fold

8-fold

16-fold

Covers minimal covers in bold

2-fold

3-fold

5-fold

7-fold

Representations

Permutation Representation (GAP)
s0 := (1,2);;
s1 := ( 7, 8)( 9,10)(15,16)(17,18);;
s2 := ( 5, 6)( 7, 9)( 8,10)(11,15)(12,16)(13,18)(14,17);;
s3 := ( 3,11)( 4,12)( 5,14)( 6,13)( 7,17)( 8,18)( 9,15)(10,16);;
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, s2*s3*s1*s2*s3*s2*s1*s2*s1*s3*s2*s3*s2*s1, 
s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s1*s2*s3*s2*s1*s3*s2*s3 ];;
poly := F / rels;;
Permutation Representation (Magma)
s0 := Sym(18)!(1,2);
s1 := Sym(18)!( 7, 8)( 9,10)(15,16)(17,18);
s2 := Sym(18)!( 5, 6)( 7, 9)( 8,10)(11,15)(12,16)(13,18)(14,17);
s3 := Sym(18)!( 3,11)( 4,12)( 5,14)( 6,13)( 7,17)( 8,18)( 9,15)(10,16);
poly := sub<Sym(18)|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, 
s2*s3*s1*s2*s3*s2*s1*s2*s1*s3*s2*s3*s2*s1, 
s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s1*s2*s3*s2*s1*s3*s2*s3 >;