Polytope of Type {19,2,4}

This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {19,2,4}*304
if this polytope has a name.
Group : SmallGroup(304,31)
Rank : 4
Schlafli Type : {19,2,4}
Number of vertices, edges, etc : 19, 19, 4, 4
Order of s₀s₁s₂s₃ : 76
Order of s₀s₁s₂s₃s₂s₁ : 2
Special Properties :
   Degenerate
   Universal
   Orientable
   Flat
Related Polytopes :
   Facet
   Vertex Figure
   Dual
Facet Of :
   {19,2,4,2} of size 608
   {19,2,4,3} of size 912
   {19,2,4,4} of size 1216
   {19,2,4,6} of size 1824
   {19,2,4,3} of size 1824
   {19,2,4,6} of size 1824
   {19,2,4,6} of size 1824
Vertex Figure Of :
   {2,19,2,4} of size 608
Quotients (Maximal Quotients in Boldface) :
   2-fold quotients : {19,2,2}*152
Covers (Minimal Covers in Boldface) :
   2-fold covers : {19,2,8}*608, {38,2,4}*608
   3-fold covers : {19,2,12}*912, {57,2,4}*912
   4-fold covers : {19,2,16}*1216, {38,4,4}*1216, {76,2,4}*1216, {38,2,8}*1216
   5-fold covers : {19,2,20}*1520, {95,2,4}*1520
   6-fold covers : {19,2,24}*1824, {57,2,8}*1824, {38,2,12}*1824, {38,6,4}*1824a, {114,2,4}*1824
Permutation Representation (GAP) :

s0 := ( 2, 3)( 4, 5)( 6, 7)( 8, 9)(10,11)(12,13)(14,15)(16,17)(18,19);;
s1 := ( 1, 2)( 3, 4)( 5, 6)( 7, 8)( 9,10)(11,12)(13,14)(15,16)(17,18);;
s2 := (21,22);;
s3 := (20,21)(22,23);;
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, 
s1*s2*s1*s2, s0*s3*s0*s3, s1*s3*s1*s3, 
s2*s3*s2*s3*s2*s3*s2*s3, s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1 ];;
poly := F / rels;;

Permutation Representation (Magma) :

s0 := Sym(23)!( 2, 3)( 4, 5)( 6, 7)( 8, 9)(10,11)(12,13)(14,15)(16,17)(18,19);
s1 := Sym(23)!( 1, 2)( 3, 4)( 5, 6)( 7, 8)( 9,10)(11,12)(13,14)(15,16)(17,18);
s2 := Sym(23)!(21,22);
s3 := Sym(23)!(20,21)(22,23);
poly := sub<Sym(23)|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, s1*s2*s1*s2, s0*s3*s0*s3, 
s1*s3*s1*s3, s2*s3*s2*s3*s2*s3*s2*s3, 
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1 >;

to this polytope