Polytope of Type {2,6,6}

This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {2,6,6}*144c
if this polytope has a name.
Group : SmallGroup(144,192)
Rank : 4
Schlafli Type : {2,6,6}
Number of vertices, edges, etc : 2, 6, 18, 6
Order of s₀s₁s₂s₃ : 6
Order of s₀s₁s₂s₃s₂s₁ : 2
Special Properties :
   Degenerate
   Universal
   Orientable
   Flat
Related Polytopes :
   Facet
   Vertex Figure
   Dual
Facet Of :
   {2,6,6,2} of size 288
   {2,6,6,3} of size 432
   {2,6,6,4} of size 576
   {2,6,6,6} of size 864
   {2,6,6,6} of size 864
   {2,6,6,8} of size 1152
   {2,6,6,9} of size 1296
   {2,6,6,3} of size 1296
   {2,6,6,10} of size 1440
   {2,6,6,12} of size 1728
   {2,6,6,12} of size 1728
   {2,6,6,4} of size 1728
Vertex Figure Of :
   {2,2,6,6} of size 288
   {3,2,6,6} of size 432
   {4,2,6,6} of size 576
   {5,2,6,6} of size 720
   {6,2,6,6} of size 864
   {7,2,6,6} of size 1008
   {8,2,6,6} of size 1152
   {9,2,6,6} of size 1296
   {10,2,6,6} of size 1440
   {11,2,6,6} of size 1584
   {12,2,6,6} of size 1728
   {13,2,6,6} of size 1872
Quotients (Maximal Quotients in Boldface) :
   2-fold quotients : {2,3,6}*72
   3-fold quotients : {2,6,2}*48
   6-fold quotients : {2,3,2}*24
   9-fold quotients : {2,2,2}*16
Covers (Minimal Covers in Boldface) :
   2-fold covers : {2,12,6}*288b, {4,6,6}*288b, {2,6,12}*288c
   3-fold covers : {2,18,6}*432b, {2,6,6}*432c, {6,6,6}*432e, {6,6,6}*432f, {2,6,6}*432d
   4-fold covers : {4,12,6}*576b, {2,24,6}*576b, {8,6,6}*576b, {2,12,12}*576c, {2,6,24}*576c, {4,6,12}*576c, {4,6,6}*576b, {2,6,6}*576b, {2,6,12}*576b
   5-fold covers : {10,6,6}*720c, {2,6,30}*720a, {2,30,6}*720c
   6-fold covers : {2,36,6}*864b, {2,12,6}*864a, {4,18,6}*864b, {4,6,6}*864a, {2,18,12}*864b, {2,6,12}*864c, {6,12,6}*864d, {6,12,6}*864e, {12,6,6}*864c, {2,6,12}*864g, {2,12,6}*864g, {4,6,6}*864h, {6,6,12}*864f, {6,6,12}*864g, {12,6,6}*864g
   7-fold covers : {2,6,42}*1008a, {14,6,6}*1008c, {2,42,6}*1008c
   8-fold covers : {4,12,12}*1152a, {8,12,6}*1152a, {4,24,6}*1152b, {2,24,12}*1152b, {2,12,24}*1152c, {8,12,6}*1152d, {4,24,6}*1152e, {2,24,12}*1152e, {2,12,24}*1152f, {4,12,6}*1152a, {2,12,12}*1152c, {8,6,12}*1152a, {4,6,24}*1152a, {16,6,6}*1152b, {2,6,48}*1152a, {2,48,6}*1152c, {4,12,6}*1152f, {2,12,12}*1152e, {2,12,6}*1152a, {2,12,12}*1152h, {4,6,6}*1152c, {4,6,6}*1152e, {4,6,12}*1152c, {4,12,6}*1152i, {2,6,12}*1152c, {2,6,24}*1152b, {2,6,6}*1152b, {2,6,24}*1152d, {8,6,6}*1152c, {2,12,6}*1152d, {8,6,6}*1152e, {4,6,12}*1152d, {2,6,12}*1152e, {2,6,12}*1152f
   9-fold covers : {2,18,18}*1296c, {2,18,6}*1296a, {2,54,6}*1296b, {2,18,6}*1296c, {2,18,6}*1296d, {2,18,6}*1296e, {2,6,6}*1296d, {2,6,18}*1296h, {6,18,6}*1296c, {6,18,6}*1296d, {18,6,6}*1296d, {2,6,18}*1296i, {2,18,6}*1296i, {6,6,6}*1296d, {6,6,6}*1296e, {6,6,6}*1296l, {6,6,6}*1296m, {2,6,6}*1296e, {2,6,6}*1296f, {2,6,6}*1296g, {6,6,6}*1296q, {6,6,6}*1296r, {6,6,6}*1296t
   10-fold covers : {10,12,6}*1440b, {20,6,6}*1440b, {2,6,60}*1440a, {2,12,30}*1440a, {10,6,12}*1440c, {4,6,30}*1440a, {2,60,6}*1440c, {4,30,6}*1440c, {2,30,12}*1440c
   11-fold covers : {2,6,66}*1584a, {22,6,6}*1584c, {2,66,6}*1584c
   12-fold covers : {4,36,6}*1728b, {4,12,6}*1728a, {2,72,6}*1728b, {2,24,6}*1728a, {8,18,6}*1728b, {8,6,6}*1728a, {2,36,12}*1728b, {2,12,12}*1728a, {2,18,24}*1728b, {4,18,12}*1728b, {2,6,24}*1728c, {4,6,12}*1728c, {6,24,6}*1728d, {6,24,6}*1728e, {24,6,6}*1728c, {2,6,24}*1728f, {2,24,6}*1728f, {12,6,12}*1728d, {6,12,12}*1728e, {6,12,12}*1728f, {12,12,6}*1728d, {12,12,6}*1728e, {6,6,24}*1728f, {6,6,24}*1728g, {8,6,6}*1728e, {24,6,6}*1728g, {2,12,12}*1728h, {12,6,12}*1728g, {4,12,6}*1728j, {4,6,12}*1728h, {2,18,6}*1728, {4,18,6}*1728b, {2,18,12}*1728b, {4,6,6}*1728a, {2,6,6}*1728a, {2,6,12}*1728a, {4,6,6}*1728c, {6,6,6}*1728b, {6,6,6}*1728c, {6,6,6}*1728e, {6,6,12}*1728c, {6,6,12}*1728d, {2,6,6}*1728c, {6,12,6}*1728k, {2,6,12}*1728c, {12,6,6}*1728c, {12,6,6}*1728d, {2,12,6}*1728c
   13-fold covers : {2,6,78}*1872a, {26,6,6}*1872c, {2,78,6}*1872c
Permutation Representation (GAP) :

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

Permutation Representation (Magma) :

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

to this polytope