Part of the Atlas of Small Regular Polytopes

Polytope of Type {18,12,2,2}

Atlas Canonical Name {18,12,2,2}*1728a

Overview

Group
SmallGroup(1728,30763)
Rank
5
Schläfli Type
{18,12,2,2}
Vertices, edges, …
18, 108, 12, 2, 2
Order of s0s1s2s3s4
36
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

6-fold

9-fold

12-fold

18-fold

27-fold

36-fold

54-fold

Covers minimal covers in bold

None in this atlas.

Representations

Permutation Representation (GAP) 
s0 := (  2,  3)(  5,  6)(  8,  9)( 10, 20)( 11, 19)( 12, 21)( 13, 23)( 14, 22)( 15, 24)( 16, 26)( 17, 25)( 18, 27)( 29, 30)( 32, 33)( 35, 36)( 37, 47)( 38, 46)( 39, 48)( 40, 50)( 41, 49)( 42, 51)( 43, 53)( 44, 52)( 45, 54)( 56, 57)( 59, 60)( 62, 63)( 64, 74)( 65, 73)( 66, 75)( 67, 77)( 68, 76)( 69, 78)( 70, 80)( 71, 79)( 72, 81)( 83, 84)( 86, 87)( 89, 90)( 91,101)( 92,100)( 93,102)( 94,104)( 95,103)( 96,105)( 97,107)( 98,106)( 99,108);;
s1 := (  1, 10)(  2, 12)(  3, 11)(  4, 16)(  5, 18)(  6, 17)(  7, 13)(  8, 15)(  9, 14)( 19, 20)( 22, 26)( 23, 25)( 24, 27)( 28, 37)( 29, 39)( 30, 38)( 31, 43)( 32, 45)( 33, 44)( 34, 40)( 35, 42)( 36, 41)( 46, 47)( 49, 53)( 50, 52)( 51, 54)( 55, 91)( 56, 93)( 57, 92)( 58, 97)( 59, 99)( 60, 98)( 61, 94)( 62, 96)( 63, 95)( 64, 82)( 65, 84)( 66, 83)( 67, 88)( 68, 90)( 69, 89)( 70, 85)( 71, 87)( 72, 86)( 73,101)( 74,100)( 75,102)( 76,107)( 77,106)( 78,108)( 79,104)( 80,103)( 81,105);;
s2 := (  1, 58)(  2, 59)(  3, 60)(  4, 55)(  5, 56)(  6, 57)(  7, 61)(  8, 62)(  9, 63)( 10, 67)( 11, 68)( 12, 69)( 13, 64)( 14, 65)( 15, 66)( 16, 70)( 17, 71)( 18, 72)( 19, 76)( 20, 77)( 21, 78)( 22, 73)( 23, 74)( 24, 75)( 25, 79)( 26, 80)( 27, 81)( 28, 85)( 29, 86)( 30, 87)( 31, 82)( 32, 83)( 33, 84)( 34, 88)( 35, 89)( 36, 90)( 37, 94)( 38, 95)( 39, 96)( 40, 91)( 41, 92)( 42, 93)( 43, 97)( 44, 98)( 45, 99)( 46,103)( 47,104)( 48,105)( 49,100)( 50,101)( 51,102)( 52,106)( 53,107)( 54,108);;
s3 := (109,110);;
s4 := (111,112);;
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, 
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, s0*s1*s2*s1*s0*s1*s2*s1, 
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2, 
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1 ];;
poly := F / rels;;
Permutation Representation (Magma) 
s0 := Sym(112)!(  2,  3)(  5,  6)(  8,  9)( 10, 20)( 11, 19)( 12, 21)( 13, 23)( 14, 22)( 15, 24)( 16, 26)( 17, 25)( 18, 27)( 29, 30)( 32, 33)( 35, 36)( 37, 47)( 38, 46)( 39, 48)( 40, 50)( 41, 49)( 42, 51)( 43, 53)( 44, 52)( 45, 54)( 56, 57)( 59, 60)( 62, 63)( 64, 74)( 65, 73)( 66, 75)( 67, 77)( 68, 76)( 69, 78)( 70, 80)( 71, 79)( 72, 81)( 83, 84)( 86, 87)( 89, 90)( 91,101)( 92,100)( 93,102)( 94,104)( 95,103)( 96,105)( 97,107)( 98,106)( 99,108);
s1 := Sym(112)!(  1, 10)(  2, 12)(  3, 11)(  4, 16)(  5, 18)(  6, 17)(  7, 13)(  8, 15)(  9, 14)( 19, 20)( 22, 26)( 23, 25)( 24, 27)( 28, 37)( 29, 39)( 30, 38)( 31, 43)( 32, 45)( 33, 44)( 34, 40)( 35, 42)( 36, 41)( 46, 47)( 49, 53)( 50, 52)( 51, 54)( 55, 91)( 56, 93)( 57, 92)( 58, 97)( 59, 99)( 60, 98)( 61, 94)( 62, 96)( 63, 95)( 64, 82)( 65, 84)( 66, 83)( 67, 88)( 68, 90)( 69, 89)( 70, 85)( 71, 87)( 72, 86)( 73,101)( 74,100)( 75,102)( 76,107)( 77,106)( 78,108)( 79,104)( 80,103)( 81,105);
s2 := Sym(112)!(  1, 58)(  2, 59)(  3, 60)(  4, 55)(  5, 56)(  6, 57)(  7, 61)(  8, 62)(  9, 63)( 10, 67)( 11, 68)( 12, 69)( 13, 64)( 14, 65)( 15, 66)( 16, 70)( 17, 71)( 18, 72)( 19, 76)( 20, 77)( 21, 78)( 22, 73)( 23, 74)( 24, 75)( 25, 79)( 26, 80)( 27, 81)( 28, 85)( 29, 86)( 30, 87)( 31, 82)( 32, 83)( 33, 84)( 34, 88)( 35, 89)( 36, 90)( 37, 94)( 38, 95)( 39, 96)( 40, 91)( 41, 92)( 42, 93)( 43, 97)( 44, 98)( 45, 99)( 46,103)( 47,104)( 48,105)( 49,100)( 50,101)( 51,102)( 52,106)( 53,107)( 54,108);
s3 := Sym(112)!(109,110);
s4 := Sym(112)!(111,112);
poly := sub<Sym(112)|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, 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, 
s0*s1*s2*s1*s0*s1*s2*s1, s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2, 
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1 >;