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Polytope of Type {12,6}
This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {12,6}*720a
if this polytope has a name.
Group : SmallGroup(720,767)
Rank : 3
Schlafli Type : {12,6}
Number of vertices, edges, etc : 60, 180, 30
Order of s0s1s2 : 15
Order of s0s1s2s1 : 6
Special Properties :
Compact Hyperbolic Quotient
Locally Spherical
Non-Orientable
Related Polytopes :
Facet
Vertex Figure
Dual
Petrial
Facet Of :
{12,6,2} of size 1440
Vertex Figure Of :
{2,12,6} of size 1440
Quotients (Maximal Quotients in Boldface) :
3-fold quotients : {4,6}*240c
6-fold quotients : {4,6}*120
Covers (Minimal Covers in Boldface) :
2-fold covers : {24,6}*1440a, {24,6}*1440b, {12,6}*1440c
Permutation Representation (GAP) :
s0 := (2,3)(7,8);;
s1 := (1,2)(5,7)(6,8);;
s2 := (4,5);;
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, s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2,
s0*s1*s2*s1*s0*s1*s0*s1*s0*s1*s2*s1*s0*s1*s0*s1,
s2*s1*s0*s1*s0*s1*s2*s1*s0*s2*s1*s2*s1*s0*s1*s0*s1*s2*s1,
s2*s1*s2*s1*s2*s0*s1*s2*s1*s2*s1*s0*s1*s2*s1*s2*s1*s0*s1 ];;
poly := F / rels;;
Permutation Representation (Magma) :
s0 := Sym(8)!(2,3)(7,8);
s1 := Sym(8)!(1,2)(5,7)(6,8);
s2 := Sym(8)!(4,5);
poly := sub<Sym(8)|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, s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2,
s0*s1*s2*s1*s0*s1*s0*s1*s0*s1*s2*s1*s0*s1*s0*s1,
s2*s1*s0*s1*s0*s1*s2*s1*s0*s2*s1*s2*s1*s0*s1*s0*s1*s2*s1,
s2*s1*s2*s1*s2*s0*s1*s2*s1*s2*s1*s0*s1*s2*s1*s2*s1*s0*s1 >;
References : None.
to this polytope