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Polytope of Type {8,5}

This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {8,5}*720a
if this polytope has a name.
Group : SmallGroup(720,764)
Rank : 3
Schlafli Type : {8,5}
Number of vertices, edges, etc : 72, 180, 45
Order of s0s1s2 : 4
Order of s0s1s2s1 : 10
Special Properties :
   Compact Hyperbolic Quotient
   Locally Spherical
   Non-Orientable
Related Polytopes :
   Facet
   Vertex Figure
   Dual
   Petrial
Facet Of :
   {8,5,2} of size 1440
Vertex Figure Of :
   {2,8,5} of size 1440
Quotients (Maximal Quotients in Boldface) :
   No Regular Quotients.
Covers (Minimal Covers in Boldface) :
   2-fold covers : {8,5}*1440a, {8,10}*1440d, {8,10}*1440g
Permutation Representation (GAP) :
s0 := (2,8)(3,5)(4,7)(6,9);;
s1 := ( 1, 2)( 3, 5)( 4, 9)( 6,10)( 7, 8);;
s2 := ( 1,10)( 2, 3)( 4, 6)( 5, 8)( 7, 9);;
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, 
s2*s0*s1*s2*s0*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*s2*s1*s0*s1*s2*s0*s1*s2*s1*s0*s2*s1*s2*s1*s0*s1*s2*s1*s2*s1 ];;
poly := F / rels;;
 
Permutation Representation (Magma) :
s0 := Sym(10)!(2,8)(3,5)(4,7)(6,9);
s1 := Sym(10)!( 1, 2)( 3, 5)( 4, 9)( 6,10)( 7, 8);
s2 := Sym(10)!( 1,10)( 2, 3)( 4, 6)( 5, 8)( 7, 9);
poly := sub<Sym(10)|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, 
s2*s0*s1*s2*s0*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*s2*s1*s0*s1*s2*s0*s1*s2*s1*s0*s2*s1*s2*s1*s0*s1*s2*s1*s2*s1 >; 
 
References : None.
to this polytope