Polytope of Type {4,20}

This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {4,20}*1920b
if this polytope has a name.
Group : SmallGroup(1920,240809)
Rank : 3
Schlafli Type : {4,20}
Number of vertices, edges, etc : 48, 480, 240
Order of s₀s₁s₂ : 24
Order of s₀s₁s₂s₁ : 6
Special Properties :
   Compact Hyperbolic Quotient
   Locally Spherical
   Orientable
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 : {4,20}*960a, {4,20}*960b, {4,10}*960
   4-fold quotients : {4,10}*480a, {4,10}*480b, {4,10}*480c
   8-fold quotients : {4,5}*240, {4,10}*240a, {4,10}*240b
   16-fold quotients : {4,5}*120
   120-fold quotients : {4,2}*16
   240-fold quotients : {2,2}*8
Covers (Minimal Covers in Boldface) :
   None in this atlas.
Permutation Representation (GAP) :

s0 := ( 1,27)( 2,28)( 3,35)( 4,36)( 5,50)( 6,49)( 7,46)( 8,45)( 9,34)(10,33)
(11,52)(12,51)(13,43)(14,44)(15,38)(16,37)(17,31)(18,32)(19,30)(20,29)(21,42)
(22,41)(23,39)(24,40)(25,47)(26,48);;
s1 := ( 1,27)( 2,28)( 3,29)( 4,30)( 5,32)( 6,31)( 7,33)( 8,34)( 9,43)(10,44)
(11,52)(12,51)(13,40)(14,39)(15,48)(16,47)(17,35)(18,36)(19,50)(20,49)(21,42)
(22,41)(23,46)(24,45)(25,38)(26,37);;
s2 := ( 1, 2)( 5,26)( 6,25)( 9,21)(10,22)(11,19)(12,20)(13,16)(14,15)(17,18)
(23,24)(27,28)(29,51)(30,52)(31,32)(33,41)(34,42)(37,43)(38,44)(39,40)(47,49)
(48,50);;
poly := Group([s0,s1,s2]);;

Finitely Presented Group Representation (GAP) :

F := FreeGroup("s0","s1","s2");;
s0 := F.1;;  s1 := F.2;;  s2 := F.3;;  
rels := [ s0*s0, s1*s1, s2*s2, s0*s2*s0*s2, s0*s1*s0*s1*s0*s1*s0*s1, 
s0*s1*s2*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s2*s1*s0*s1*s2*s1, 
s2*s0*s1*s2*s1*s2*s1*s2*s1*s2*s0*s1*s2*s0*s1*s2*s1*s2*s1*s2*s1*s2*s0*s1 ];;
poly := F / rels;;

Permutation Representation (Magma) :

s0 := Sym(52)!( 1,27)( 2,28)( 3,35)( 4,36)( 5,50)( 6,49)( 7,46)( 8,45)( 9,34)
(10,33)(11,52)(12,51)(13,43)(14,44)(15,38)(16,37)(17,31)(18,32)(19,30)(20,29)
(21,42)(22,41)(23,39)(24,40)(25,47)(26,48);
s1 := Sym(52)!( 1,27)( 2,28)( 3,29)( 4,30)( 5,32)( 6,31)( 7,33)( 8,34)( 9,43)
(10,44)(11,52)(12,51)(13,40)(14,39)(15,48)(16,47)(17,35)(18,36)(19,50)(20,49)
(21,42)(22,41)(23,46)(24,45)(25,38)(26,37);
s2 := Sym(52)!( 1, 2)( 5,26)( 6,25)( 9,21)(10,22)(11,19)(12,20)(13,16)(14,15)
(17,18)(23,24)(27,28)(29,51)(30,52)(31,32)(33,41)(34,42)(37,43)(38,44)(39,40)
(47,49)(48,50);
poly := sub<Sym(52)|s0,s1,s2>;

Finitely Presented Group Representation (Magma) :

poly<s0,s1,s2> := Group< s0,s1,s2 | s0*s0, s1*s1, s2*s2, 
s0*s2*s0*s2, s0*s1*s0*s1*s0*s1*s0*s1, 
s0*s1*s2*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s2*s1*s0*s1*s2*s1, 
s2*s0*s1*s2*s1*s2*s1*s2*s1*s2*s0*s1*s2*s0*s1*s2*s1*s2*s1*s2*s1*s2*s0*s1 >;

References : None.
to this polytope