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Polytope of Type {4,2,4,18}

This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {4,2,4,18}*1152a
if this polytope has a name.
Group : SmallGroup(1152,136318)
Rank : 5
Schlafli Type : {4,2,4,18}
Number of vertices, edges, etc : 4, 4, 4, 36, 18
Order of s0s1s2s3s4 : 36
Order of s0s1s2s3s4s3s2s1 : 2
Special Properties :
   Degenerate
   Universal
   Orientable
   Flat
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 : {2,2,4,18}*576a, {4,2,2,18}*576
   3-fold quotients : {4,2,4,6}*384a
   4-fold quotients : {4,2,2,9}*288, {2,2,2,18}*288
   6-fold quotients : {2,2,4,6}*192a, {4,2,2,6}*192
   8-fold quotients : {2,2,2,9}*144
   9-fold quotients : {4,2,4,2}*128
   12-fold quotients : {4,2,2,3}*96, {2,2,2,6}*96
   18-fold quotients : {2,2,4,2}*64, {4,2,2,2}*64
   24-fold quotients : {2,2,2,3}*48
   36-fold quotients : {2,2,2,2}*32
Covers (Minimal Covers in Boldface) :
   None in this atlas.
Permutation Representation (GAP) :
s0 := (2,3);;
s1 := (1,2)(3,4);;
s2 := (23,32)(24,33)(25,34)(26,35)(27,36)(28,37)(29,38)(30,39)(31,40);;
s3 := ( 5,23)( 6,25)( 7,24)( 8,30)( 9,29)(10,31)(11,27)(12,26)(13,28)(14,32)
(15,34)(16,33)(17,39)(18,38)(19,40)(20,36)(21,35)(22,37);;
s4 := ( 5, 8)( 6,10)( 7, 9)(11,12)(14,17)(15,19)(16,18)(20,21)(23,26)(24,28)
(25,27)(29,30)(32,35)(33,37)(34,36)(38,39);;
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, 
s0*s1*s0*s1*s0*s1*s0*s1, s2*s3*s2*s3*s2*s3*s2*s3, 
s2*s3*s4*s3*s2*s3*s4*s3, 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(40)!(2,3);
s1 := Sym(40)!(1,2)(3,4);
s2 := Sym(40)!(23,32)(24,33)(25,34)(26,35)(27,36)(28,37)(29,38)(30,39)(31,40);
s3 := Sym(40)!( 5,23)( 6,25)( 7,24)( 8,30)( 9,29)(10,31)(11,27)(12,26)(13,28)
(14,32)(15,34)(16,33)(17,39)(18,38)(19,40)(20,36)(21,35)(22,37);
s4 := Sym(40)!( 5, 8)( 6,10)( 7, 9)(11,12)(14,17)(15,19)(16,18)(20,21)(23,26)
(24,28)(25,27)(29,30)(32,35)(33,37)(34,36)(38,39);
poly := sub<Sym(40)|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, s0*s1*s0*s1*s0*s1*s0*s1, 
s2*s3*s2*s3*s2*s3*s2*s3, s2*s3*s4*s3*s2*s3*s4*s3, 
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 >; 
 

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