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Polytope of Type {8,6,2,5}
This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {8,6,2,5}*1920c
if this polytope has a name.
Group : SmallGroup(1920,240213)
Rank : 5
Schlafli Type : {8,6,2,5}
Number of vertices, edges, etc : 16, 48, 12, 5, 5
Order of s0s1s2s3s4 : 30
Order of s0s1s2s3s4s3s2s1 : 2
Special Properties :
Degenerate
Universal
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) :
2-fold quotients : {4,6,2,5}*960
4-fold quotients : {4,3,2,5}*480, {4,6,2,5}*480b, {4,6,2,5}*480c
8-fold quotients : {4,3,2,5}*240, {2,6,2,5}*240
16-fold quotients : {2,3,2,5}*120
24-fold quotients : {2,2,2,5}*80
Covers (Minimal Covers in Boldface) :
None in this atlas.
Permutation Representation (GAP) :
s0 := ( 1,11)( 2,12)( 3,10)( 4, 9)( 5,15)( 6,16)( 7,14)( 8,13);;
s1 := ( 3, 5)( 4, 6)( 7, 8)(11,13)(12,14)(15,16);;
s2 := ( 3, 4)( 5, 7)( 6, 8)( 9,10)(13,16)(14,15);;
s3 := (18,19)(20,21);;
s4 := (17,18)(19,20);;
poly := Group([s0,s1,s2,s3,s4]);;
Finitely Presented Group Representation (GAP) :
F := FreeGroup("s0","s1","s2","s3","s4");;
s0 := F.1;; s1 := F.2;; s2 := F.3;; s3 := F.4;; s4 := F.5;;
rels := [ s0*s0, s1*s1, s2*s2, s3*s3, s4*s4, s0*s2*s0*s2,
s0*s3*s0*s3, s1*s3*s1*s3, s2*s3*s2*s3,
s0*s4*s0*s4, s1*s4*s1*s4, s2*s4*s2*s4,
s3*s4*s3*s4*s3*s4*s3*s4*s3*s4, s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2,
s2*s0*s1*s2*s1*s0*s1*s2*s1*s2*s0*s1*s0*s1 ];;
poly := F / rels;;
Permutation Representation (Magma) :
s0 := Sym(21)!( 1,11)( 2,12)( 3,10)( 4, 9)( 5,15)( 6,16)( 7,14)( 8,13);
s1 := Sym(21)!( 3, 5)( 4, 6)( 7, 8)(11,13)(12,14)(15,16);
s2 := Sym(21)!( 3, 4)( 5, 7)( 6, 8)( 9,10)(13,16)(14,15);
s3 := Sym(21)!(18,19)(20,21);
s4 := Sym(21)!(17,18)(19,20);
poly := sub<Sym(21)|s0,s1,s2,s3,s4>;
Finitely Presented Group Representation (Magma) :
poly<s0,s1,s2,s3,s4> := Group< s0,s1,s2,s3,s4 | s0*s0, s1*s1, s2*s2,
s3*s3, s4*s4, s0*s2*s0*s2, s0*s3*s0*s3,
s1*s3*s1*s3, s2*s3*s2*s3, s0*s4*s0*s4,
s1*s4*s1*s4, s2*s4*s2*s4, s3*s4*s3*s4*s3*s4*s3*s4*s3*s4,
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2,
s2*s0*s1*s2*s1*s0*s1*s2*s1*s2*s0*s1*s0*s1 >;
to this polytope