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Polytope of Type {5,5,4}
This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {5,5,4}*1920
if this polytope has a name.
Group : SmallGroup(1920,240995)
Rank : 4
Schlafli Type : {5,5,4}
Number of vertices, edges, etc : 6, 120, 96, 32
Order of s0s1s2s3 : 6
Order of s0s1s2s3s2s1 : 4
Special Properties :
Non-Orientable
Flat
Related Polytopes :
Facet
Vertex Figure
Dual
Facet Of :
None in this Atlas
Vertex Figure Of :
None in this Atlas
Quotients (Maximal Quotients in Boldface) :
16-fold quotients : {5,5,2}*120
Covers (Minimal Covers in Boldface) :
None in this atlas.
Permutation Representation (GAP) :
s0 := ( 1, 2)( 3, 4)( 5, 9)( 6,12)( 7,11)( 8,10)(13,18)(14,19)(15,17)(16,20);;
s1 := ( 1, 5)( 2, 7)( 3, 8)( 4, 6)( 9,13)(10,14)(11,16)(12,15)(17,19)(18,20);;
s2 := ( 1, 4)( 2, 3)( 5,13)( 6,14)( 7,15)( 8,16)( 9,18)(10,20)(11,17)(12,19);;
s3 := ( 1, 4)( 2, 3)( 5, 6)( 7, 8)( 9,12)(10,11)(13,15)(14,16)(17,18)(19,20);;
poly := Group([s0,s1,s2,s3]);;
Finitely Presented Group Representation (GAP) :
F := FreeGroup("s0","s1","s2","s3");;
s0 := F.1;; s1 := F.2;; s2 := F.3;; s3 := F.4;;
rels := [ s0*s0, s1*s1, s2*s2, s3*s3, s0*s2*s0*s2,
s0*s3*s0*s3, s1*s3*s1*s3, s2*s3*s2*s3*s2*s3*s2*s3,
s0*s1*s2*s0*s1*s2*s0*s1*s2, s0*s1*s0*s1*s0*s1*s0*s1*s0*s1,
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2, s3*s0*s2*s1*s3*s2*s1*s3*s2*s1*s3*s2*s3*s0*s1*s2*s1*s2*s3*s2*s0*s1*s2*s1 ];;
poly := F / rels;;
Permutation Representation (Magma) :
s0 := Sym(20)!( 1, 2)( 3, 4)( 5, 9)( 6,12)( 7,11)( 8,10)(13,18)(14,19)(15,17)
(16,20);
s1 := Sym(20)!( 1, 5)( 2, 7)( 3, 8)( 4, 6)( 9,13)(10,14)(11,16)(12,15)(17,19)
(18,20);
s2 := Sym(20)!( 1, 4)( 2, 3)( 5,13)( 6,14)( 7,15)( 8,16)( 9,18)(10,20)(11,17)
(12,19);
s3 := Sym(20)!( 1, 4)( 2, 3)( 5, 6)( 7, 8)( 9,12)(10,11)(13,15)(14,16)(17,18)
(19,20);
poly := sub<Sym(20)|s0,s1,s2,s3>;
Finitely Presented Group Representation (Magma) :
poly<s0,s1,s2,s3> := Group< s0,s1,s2,s3 | s0*s0, s1*s1, s2*s2,
s3*s3, s0*s2*s0*s2, s0*s3*s0*s3, s1*s3*s1*s3,
s2*s3*s2*s3*s2*s3*s2*s3, s0*s1*s2*s0*s1*s2*s0*s1*s2,
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1, s1*s2*s1*s2*s1*s2*s1*s2*s1*s2,
s3*s0*s2*s1*s3*s2*s1*s3*s2*s1*s3*s2*s3*s0*s1*s2*s1*s2*s3*s2*s0*s1*s2*s1 >;
References : None.
to this polytope