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Polytope of Type {5,4,4}
This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {5,4,4}*480
if this polytope has a name.
Group : SmallGroup(480,951)
Rank : 4
Schlafli Type : {5,4,4}
Number of vertices, edges, etc : 15, 30, 24, 4
Order of s0s1s2s3 : 12
Order of s0s1s2s3s2s1 : 2
Special Properties :
Universal
Non-Orientable
Flat
Related Polytopes :
Facet
Vertex Figure
Dual
Facet Of :
{5,4,4,2} of size 960
{5,4,4,4} of size 1920
Vertex Figure Of :
{2,5,4,4} of size 960
Quotients (Maximal Quotients in Boldface) :
2-fold quotients : {5,4,2}*240
Covers (Minimal Covers in Boldface) :
2-fold covers : {5,4,8}*960, {5,4,4}*960, {10,4,4}*960a, {10,4,4}*960b
3-fold covers : {5,4,12}*1440
4-fold covers : {5,4,16}*1920, {10,4,4}*1920a, {10,4,4}*1920b, {5,4,8}*1920, {10,4,8}*1920a, {10,4,8}*1920b, {10,4,4}*1920c, {5,8,4}*1920
Permutation Representation (GAP) :
s0 := (6,7)(8,9);;
s1 := (5,6)(7,8);;
s2 := (3,4)(6,7);;
s3 := (1,3)(2,4);;
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, s1*s2*s1*s2*s1*s2*s1*s2,
s1*s2*s3*s2*s1*s2*s3*s2, s2*s3*s2*s3*s2*s3*s2*s3,
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1, s2*s1*s2*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1 ];;
poly := F / rels;;
Permutation Representation (Magma) :
s0 := Sym(9)!(6,7)(8,9);
s1 := Sym(9)!(5,6)(7,8);
s2 := Sym(9)!(3,4)(6,7);
s3 := Sym(9)!(1,3)(2,4);
poly := sub<Sym(9)|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,
s1*s2*s1*s2*s1*s2*s1*s2, s1*s2*s3*s2*s1*s2*s3*s2,
s2*s3*s2*s3*s2*s3*s2*s3, s0*s1*s0*s1*s0*s1*s0*s1*s0*s1,
s2*s1*s2*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1 >;
References : None.
to this polytope