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Polytope of Type {4,15}
This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {4,15}*720
if this polytope has a name.
Group : SmallGroup(720,767)
Rank : 3
Schlafli Type : {4,15}
Number of vertices, edges, etc : 24, 180, 90
Order of s0s1s2 : 6
Order of s0s1s2s1 : 6
Special Properties :
Compact Hyperbolic Quotient
Locally Spherical
Orientable
Related Polytopes :
Facet
Vertex Figure
Dual
Petrial
Facet Of :
{4,15,2} of size 1440
Vertex Figure Of :
{2,4,15} of size 1440
Quotients (Maximal Quotients in Boldface) :
3-fold quotients : {4,5}*240
6-fold quotients : {4,5}*120
60-fold quotients : {2,3}*12
Covers (Minimal Covers in Boldface) :
2-fold covers : {8,15}*1440, {4,30}*1440
Permutation Representation (GAP) :
s0 := (7,8);;
s1 := (2,3)(5,7)(6,8);;
s2 := (1,2)(4,5)(7,8);;
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,
s2*s0*s1*s2*s0*s1*s2*s0*s1*s2*s0*s1*s2*s0*s1*s2*s0*s1,
s2*s0*s1*s2*s1*s2*s0*s1*s2*s1*s0*s1*s2*s1*s2*s1*s0*s1*s2*s1 ];;
poly := F / rels;;
Permutation Representation (Magma) :
s0 := Sym(8)!(7,8);
s1 := Sym(8)!(2,3)(5,7)(6,8);
s2 := Sym(8)!(1,2)(4,5)(7,8);
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, s0*s1*s0*s1*s0*s1*s0*s1,
s2*s0*s1*s2*s0*s1*s2*s0*s1*s2*s0*s1*s2*s0*s1*s2*s0*s1,
s2*s0*s1*s2*s1*s2*s0*s1*s2*s1*s0*s1*s2*s1*s2*s1*s0*s1*s2*s1 >;
References : None.
to this polytope