Part of the Atlas of Small Regular Polytopes

Polytope of Type {6,68}

Atlas Canonical Name {6,68}*816b

▶ Play as a twisty puzzle

Overview

Group
SmallGroup(816,190)
Rank
3
Schläfli Type
{6,68}
Vertices, edges, …
6, 204, 68
Order of s0s1s2
51
Order of s0s1s2s1
4
Also known as
if this polytope has a name.

Special Properties

  • Compact Hyperbolic Quotient
  • Locally Spherical
  • Non-Orientable
  • Flat

Quotients maximal quotients in bold

17-fold

34-fold

Covers minimal covers in bold

2-fold

Irregular Quotients of which this is a minimal cover

None.

Representations

Permutation Representation (GAP)
s0 := ( 2, 3)( 6, 7)(10,11)(14,15)(18,19)(22,23)(26,27)(30,31)(34,35)(38,39)(42,43)(46,47)(50,51)(54,55)(58,59)(62,63)(66,67);;
s1 := ( 3, 4)( 5,65)( 6,66)( 7,68)( 8,67)( 9,61)(10,62)(11,64)(12,63)(13,57)(14,58)(15,60)(16,59)(17,53)(18,54)(19,56)(20,55)(21,49)(22,50)(23,52)(24,51)(25,45)(26,46)(27,48)(28,47)(29,41)(30,42)(31,44)(32,43)(33,37)(34,38)(35,40)(36,39);;
s2 := ( 1, 8)( 2, 7)( 3, 6)( 4, 5)( 9,68)(10,67)(11,66)(12,65)(13,64)(14,63)(15,62)(16,61)(17,60)(18,59)(19,58)(20,57)(21,56)(22,55)(23,54)(24,53)(25,52)(26,51)(27,50)(28,49)(29,48)(30,47)(31,46)(32,45)(33,44)(34,43)(35,42)(36,41)(37,40)(38,39);;
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*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1, 
s0*s1*s2*s0*s1*s2*s0*s1*s0*s1*s2*s0*s1*s2*s0*s1, 
s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1, 
s0*s1*s2*s1*s2*s1*s2*s0*s1*s2*s1*s2*s1*s2*s0*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2 ];;
poly := F / rels;;
Permutation Representation (Magma)
s0 := Sym(68)!( 2, 3)( 6, 7)(10,11)(14,15)(18,19)(22,23)(26,27)(30,31)(34,35)(38,39)(42,43)(46,47)(50,51)(54,55)(58,59)(62,63)(66,67);
s1 := Sym(68)!( 3, 4)( 5,65)( 6,66)( 7,68)( 8,67)( 9,61)(10,62)(11,64)(12,63)(13,57)(14,58)(15,60)(16,59)(17,53)(18,54)(19,56)(20,55)(21,49)(22,50)(23,52)(24,51)(25,45)(26,46)(27,48)(28,47)(29,41)(30,42)(31,44)(32,43)(33,37)(34,38)(35,40)(36,39);
s2 := Sym(68)!( 1, 8)( 2, 7)( 3, 6)( 4, 5)( 9,68)(10,67)(11,66)(12,65)(13,64)(14,63)(15,62)(16,61)(17,60)(18,59)(19,58)(20,57)(21,56)(22,55)(23,54)(24,53)(25,52)(26,51)(27,50)(28,49)(29,48)(30,47)(31,46)(32,45)(33,44)(34,43)(35,42)(36,41)(37,40)(38,39);
poly := sub<Sym(68)|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*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1, 
s0*s1*s2*s0*s1*s2*s0*s1*s0*s1*s2*s0*s1*s2*s0*s1, 
s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1, 
s0*s1*s2*s1*s2*s1*s2*s0*s1*s2*s1*s2*s1*s2*s0*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2 >; 

References

None.

to this polytope.

Twisty Puzzle