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Polytope of Type {4,2,2,18}
This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {4,2,2,18}*576
if this polytope has a name.
Group : SmallGroup(576,5012)
Rank : 5
Schlafli Type : {4,2,2,18}
Number of vertices, edges, etc : 4, 4, 2, 18, 18
Order of s0s1s2s3s4 : 36
Order of s0s1s2s3s4s3s2s1 : 2
Special Properties :
Degenerate
Universal
Orientable
Flat
Related Polytopes :
Facet
Vertex Figure
Dual
Facet Of :
{4,2,2,18,2} of size 1152
Vertex Figure Of :
{2,4,2,2,18} of size 1152
{3,4,2,2,18} of size 1728
Quotients (Maximal Quotients in Boldface) :
2-fold quotients : {4,2,2,9}*288, {2,2,2,18}*288
3-fold quotients : {4,2,2,6}*192
4-fold quotients : {2,2,2,9}*144
6-fold quotients : {4,2,2,3}*96, {2,2,2,6}*96
9-fold quotients : {4,2,2,2}*64
12-fold quotients : {2,2,2,3}*48
18-fold quotients : {2,2,2,2}*32
Covers (Minimal Covers in Boldface) :
2-fold covers : {4,4,2,18}*1152, {4,2,4,18}*1152a, {4,2,2,36}*1152, {8,2,2,18}*1152
3-fold covers : {4,2,2,54}*1728, {12,2,2,18}*1728, {4,2,6,18}*1728a, {4,2,6,18}*1728b, {4,6,2,18}*1728a
Permutation Representation (GAP) :
s0 := (2,3);;
s1 := (1,2)(3,4);;
s2 := (5,6);;
s3 := ( 9,10)(11,12)(13,14)(15,16)(17,18)(19,20)(21,22)(23,24);;
s4 := ( 7,11)( 8, 9)(10,15)(12,13)(14,19)(16,17)(18,23)(20,21)(22,24);;
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,
s1*s2*s1*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, s0*s1*s0*s1*s0*s1*s0*s1,
s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*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(24)!(2,3);
s1 := Sym(24)!(1,2)(3,4);
s2 := Sym(24)!(5,6);
s3 := Sym(24)!( 9,10)(11,12)(13,14)(15,16)(17,18)(19,20)(21,22)(23,24);
s4 := Sym(24)!( 7,11)( 8, 9)(10,15)(12,13)(14,19)(16,17)(18,23)(20,21)(22,24);
poly := sub<Sym(24)|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, s1*s2*s1*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,
s0*s1*s0*s1*s0*s1*s0*s1, s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4*s3*s4 >;
to this polytope