Polytope of Type {12,8}

Play with this polytope as a twisty puzzle

This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {12,8}*1920d
if this polytope has a name.
Group : SmallGroup(1920,240844)
Rank : 3
Schlafli Type : {12,8}
Number of vertices, edges, etc : 120, 480, 80
Order of s₀s₁s₂ : 20
Order of s₀s₁s₂s₁ : 12
Special Properties :
   Compact Hyperbolic Quotient
   Locally Spherical
   Orientable
Related Polytopes :
   Facet
   Vertex Figure
   Dual
   Petrial
Facet Of :
   None in this Atlas
Vertex Figure Of :
   None in this Atlas
Quotients (Maximal Quotients in Boldface) :
   2-fold quotients : {6,8}*960a, {12,4}*960a
   4-fold quotients : {6,8}*480a, {6,8}*480b, {6,4}*480
   8-fold quotients : {6,4}*240a, {6,4}*240b, {6,4}*240c
   16-fold quotients : {6,4}*120
   120-fold quotients : {4,2}*16
   240-fold quotients : {2,2}*8
Covers (Minimal Covers in Boldface) :
   None in this atlas.
Irregular Quotients (of which this is a minimal cover):
   P/N, where N=<s0*s1*s0*s1*s0*s2*s1*s0*s2*s1*s0*s1*s0*s2> of order 2.
      40 facets:
         40 of {12}*24
      60 vertex figures:
         60 of {8}*16
   P/N, where N=<s0*s1*s0*s1*s2*s1*s0*s1*s0*s1*s2*s1> of order 3.
      32 facets:
         24 of {12}*24
         8 of {4}*8
      40 vertex figures:
         40 of {8}*16
   P/N, where N=<s0*s1*s0*s1*s2*s1*s0*s1*s0*s1*s2*s1, s0*s1*s2*s1*s0*s1*s0*s2*s1*s0*s2*s1> of order 6.
      16 facets:
         12 of {12}*24
         4 of {4}*8
      20 vertex figures:
         20 of {8}*16

Permutation Representation (GAP) :

s0 := ( 1,37)( 2,36)( 3,39)( 4,33)( 5,32)( 6,29)( 7,25)( 8,40)( 9,19)(10,16)(12,23)(14,21)(15,38)(17,35)(18,26)(22,24)(31,34)(42,44);;
s1 := ( 1, 7)( 2,36)( 4,26)( 5,17)( 6,38)( 8,16)( 9,30)(10,29)(11,20)(13,21)(14,34)(15,33)(18,40)(19,24)(22,27)(23,35)(25,39)(28,31)(41,44)(42,43);;
s2 := ( 1,38)( 2,33)( 3,21)( 4,36)( 5,19)( 6,34)( 7,17)( 8,22)( 9,32)(10,16)(11,30)(12,26)(13,20)(14,39)(15,37)(18,23)(24,40)(25,35)(29,31);;
poly := Group([s0,s1,s2]);;

Finitely Presented Group Representation (GAP) :

F := FreeGroup("s0","s1","s2");;
s0 := F.1;;  s1 := F.2;;  s2 := F.3;;  
rels := [ s0*s0, s1*s1, s2*s2, s0*s2*s0*s2, s0*s1*s2*s1*s2*s1*s2*s1*s0*s1*s2*s1*s2*s1*s2*s1, 
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2, 
s0*s1*s0*s1*s2*s0*s1*s0*s1*s2*s1*s2*s0*s1*s0*s1*s2*s1*s2*s0*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*s2*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s2*s1 ];;
poly := F / rels;;

Permutation Representation (Magma) :

s0 := Sym(44)!( 1,37)( 2,36)( 3,39)( 4,33)( 5,32)( 6,29)( 7,25)( 8,40)( 9,19)(10,16)(12,23)(14,21)(15,38)(17,35)(18,26)(22,24)(31,34)(42,44);
s1 := Sym(44)!( 1, 7)( 2,36)( 4,26)( 5,17)( 6,38)( 8,16)( 9,30)(10,29)(11,20)(13,21)(14,34)(15,33)(18,40)(19,24)(22,27)(23,35)(25,39)(28,31)(41,44)(42,43);
s2 := Sym(44)!( 1,38)( 2,33)( 3,21)( 4,36)( 5,19)( 6,34)( 7,17)( 8,22)( 9,32)(10,16)(11,30)(12,26)(13,20)(14,39)(15,37)(18,23)(24,40)(25,35)(29,31);
poly := sub<Sym(44)|s0,s1,s2>;

Finitely Presented Group Representation (Magma) :

poly<s0,s1,s2> := Group< s0,s1,s2 | s0*s0, s1*s1, s2*s2, 
s0*s2*s0*s2, s0*s1*s2*s1*s2*s1*s2*s1*s0*s1*s2*s1*s2*s1*s2*s1, 
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2, 
s0*s1*s0*s1*s2*s0*s1*s0*s1*s2*s1*s2*s0*s1*s0*s1*s2*s1*s2*s0*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*s2*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s2*s1 >;

References : None.
to this polytope

Polytope of Type {12,8}

Twisty Puzzle