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Polytope of Type {7,2,4,2}
This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {7,2,4,2}*224
if this polytope has a name.
Group : SmallGroup(224,178)
Rank : 5
Schlafli Type : {7,2,4,2}
Number of vertices, edges, etc : 7, 7, 4, 4, 2
Order of s0s1s2s3s4 : 28
Order of s0s1s2s3s4s3s2s1 : 2
Special Properties :
Degenerate
Universal
Orientable
Flat
Related Polytopes :
Facet
Vertex Figure
Dual
Facet Of :
{7,2,4,2,2} of size 448
{7,2,4,2,3} of size 672
{7,2,4,2,4} of size 896
{7,2,4,2,5} of size 1120
{7,2,4,2,6} of size 1344
{7,2,4,2,7} of size 1568
{7,2,4,2,8} of size 1792
Vertex Figure Of :
{2,7,2,4,2} of size 448
Quotients (Maximal Quotients in Boldface) :
2-fold quotients : {7,2,2,2}*112
Covers (Minimal Covers in Boldface) :
2-fold covers : {7,2,4,4}*448, {7,2,8,2}*448, {14,2,4,2}*448
3-fold covers : {7,2,12,2}*672, {7,2,4,6}*672a, {21,2,4,2}*672
4-fold covers : {7,2,4,8}*896a, {7,2,8,4}*896a, {7,2,4,8}*896b, {7,2,8,4}*896b, {7,2,4,4}*896, {7,2,16,2}*896, {28,2,4,2}*896, {14,2,4,4}*896, {14,4,4,2}*896, {14,2,8,2}*896
5-fold covers : {7,2,20,2}*1120, {7,2,4,10}*1120, {35,2,4,2}*1120
6-fold covers : {7,2,4,12}*1344a, {7,2,12,4}*1344a, {7,2,24,2}*1344, {7,2,8,6}*1344, {21,2,4,4}*1344, {21,2,8,2}*1344, {14,2,12,2}*1344, {14,2,4,6}*1344a, {14,6,4,2}*1344a, {42,2,4,2}*1344
7-fold covers : {49,2,4,2}*1568, {7,2,28,2}*1568, {7,2,4,14}*1568, {7,14,4,2}*1568
8-fold covers : {7,2,4,8}*1792a, {7,2,8,4}*1792a, {7,2,8,8}*1792a, {7,2,8,8}*1792b, {7,2,8,8}*1792c, {7,2,8,8}*1792d, {7,2,4,16}*1792a, {7,2,16,4}*1792a, {7,2,4,16}*1792b, {7,2,16,4}*1792b, {7,2,4,4}*1792, {7,2,4,8}*1792b, {7,2,8,4}*1792b, {7,2,32,2}*1792, {14,4,4,4}*1792, {28,4,4,2}*1792, {28,2,4,4}*1792, {14,2,4,8}*1792a, {14,2,8,4}*1792a, {14,4,8,2}*1792a, {14,8,4,2}*1792a, {14,2,4,8}*1792b, {14,2,8,4}*1792b, {14,4,8,2}*1792b, {14,8,4,2}*1792b, {14,2,4,4}*1792, {14,4,4,2}*1792, {28,2,8,2}*1792, {56,2,4,2}*1792, {14,2,16,2}*1792
Permutation Representation (GAP) :
s0 := (2,3)(4,5)(6,7);;
s1 := (1,2)(3,4)(5,6);;
s2 := ( 9,10);;
s3 := ( 8, 9)(10,11);;
s4 := (12,13);;
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,
s0*s4*s0*s4, s1*s4*s1*s4, s2*s4*s2*s4,
s3*s4*s3*s4, s2*s3*s2*s3*s2*s3*s2*s3,
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1 ];;
poly := F / rels;;
Permutation Representation (Magma) :
s0 := Sym(13)!(2,3)(4,5)(6,7);
s1 := Sym(13)!(1,2)(3,4)(5,6);
s2 := Sym(13)!( 9,10);
s3 := Sym(13)!( 8, 9)(10,11);
s4 := Sym(13)!(12,13);
poly := sub<Sym(13)|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, s0*s4*s0*s4,
s1*s4*s1*s4, s2*s4*s2*s4, s3*s4*s3*s4,
s2*s3*s2*s3*s2*s3*s2*s3, s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1 >;
to this polytope