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Polytope of Type {6,4,2,9}
This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {6,4,2,9}*1728
if this polytope has a name.
Group : SmallGroup(1728,46114)
Rank : 5
Schlafli Type : {6,4,2,9}
Number of vertices, edges, etc : 12, 24, 8, 9, 9
Order of s0s1s2s3s4 : 18
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 : {3,4,2,9}*864, {6,4,2,9}*864b, {6,4,2,9}*864c
3-fold quotients : {6,4,2,3}*576
4-fold quotients : {3,4,2,9}*432, {6,2,2,9}*432
6-fold quotients : {3,4,2,3}*288, {6,4,2,3}*288b, {6,4,2,3}*288c
8-fold quotients : {3,2,2,9}*216
12-fold quotients : {2,2,2,9}*144, {3,4,2,3}*144, {6,2,2,3}*144
24-fold quotients : {3,2,2,3}*72
36-fold quotients : {2,2,2,3}*48
Covers (Minimal Covers in Boldface) :
None in this atlas.
Permutation Representation (GAP) :
s0 := ( 8, 9)(11,12)(13,14)(15,16);;
s1 := ( 1, 2)( 3, 5)( 4,11)( 6, 8)( 7,15)( 9,12)(10,13)(14,16);;
s2 := ( 1, 7)( 2,10)( 3, 4)( 5, 6)( 8,14)( 9,13)(11,16)(12,15);;
s3 := (18,19)(20,21)(22,23)(24,25);;
s4 := (17,18)(19,20)(21,22)(23,24);;
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,
s1*s2*s1*s2*s1*s2*s1*s2, s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1,
s0*s1*s2*s1*s0*s1*s0*s1*s2*s1*s0*s1,
s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4 ];;
poly := F / rels;;
Permutation Representation (Magma) :
s0 := Sym(25)!( 8, 9)(11,12)(13,14)(15,16);
s1 := Sym(25)!( 1, 2)( 3, 5)( 4,11)( 6, 8)( 7,15)( 9,12)(10,13)(14,16);
s2 := Sym(25)!( 1, 7)( 2,10)( 3, 4)( 5, 6)( 8,14)( 9,13)(11,16)(12,15);
s3 := Sym(25)!(18,19)(20,21)(22,23)(24,25);
s4 := Sym(25)!(17,18)(19,20)(21,22)(23,24);
poly := sub<Sym(25)|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, s1*s2*s1*s2*s1*s2*s1*s2,
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1,
s0*s1*s2*s1*s0*s1*s0*s1*s2*s1*s0*s1,
s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4 >;
to this polytope