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Polytope of Type {9,18}
This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {9,18}*1008d
if this polytope has a name.
Group : SmallGroup(1008,880)
Rank : 3
Schlafli Type : {9,18}
Number of vertices, edges, etc : 28, 252, 56
Order of s0s1s2 : 9
Order of s0s1s2s1 : 14
Special Properties :
Compact Hyperbolic Quotient
Locally Spherical
Non-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 : {9,9}*504a
Covers (Minimal Covers in Boldface) :
None in this atlas.
Permutation Representation (GAP) :
s0 := ( 2, 3)( 4, 7)( 5, 6)( 8, 9)(10,11);;
s1 := ( 1, 2)( 3, 4)( 6, 8)( 7, 9)(10,11);;
s2 := (2,9)(3,8)(4,5)(6,7);;
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*s0*s1*s0*s1,
s0*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s2*s1*s2*s1*s0*s1*s2*s1,
s0*s1*s2*s0*s1*s2*s0*s1*s2*s1*s2*s1*s0*s1*s2*s1*s2*s1*s2 ];;
poly := F / rels;;
Permutation Representation (Magma) :
s0 := Sym(11)!( 2, 3)( 4, 7)( 5, 6)( 8, 9)(10,11);
s1 := Sym(11)!( 1, 2)( 3, 4)( 6, 8)( 7, 9)(10,11);
s2 := Sym(11)!(2,9)(3,8)(4,5)(6,7);
poly := sub<Sym(11)|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*s0*s1*s0*s1,
s0*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s2*s1*s2*s1*s0*s1*s2*s1,
s0*s1*s2*s0*s1*s2*s0*s1*s2*s1*s2*s1*s0*s1*s2*s1*s2*s1*s2 >;
References : None.
to this polytope