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Polytope of Type {12,2,20}
This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {12,2,20}*960
if this polytope has a name.
Group : SmallGroup(960,6930)
Rank : 4
Schlafli Type : {12,2,20}
Number of vertices, edges, etc : 12, 12, 20, 20
Order of s0s1s2s3 : 60
Order of s0s1s2s3s2s1 : 2
Special Properties :
Degenerate
Universal
Orientable
Flat
Related Polytopes :
Facet
Vertex Figure
Dual
Facet Of :
{12,2,20,2} of size 1920
Vertex Figure Of :
{2,12,2,20} of size 1920
Quotients (Maximal Quotients in Boldface) :
2-fold quotients : {12,2,10}*480, {6,2,20}*480
3-fold quotients : {4,2,20}*320
4-fold quotients : {12,2,5}*240, {3,2,20}*240, {6,2,10}*240
5-fold quotients : {12,2,4}*192
6-fold quotients : {2,2,20}*160, {4,2,10}*160
8-fold quotients : {3,2,10}*120, {6,2,5}*120
10-fold quotients : {12,2,2}*96, {6,2,4}*96
12-fold quotients : {4,2,5}*80, {2,2,10}*80
15-fold quotients : {4,2,4}*64
16-fold quotients : {3,2,5}*60
20-fold quotients : {3,2,4}*48, {6,2,2}*48
24-fold quotients : {2,2,5}*40
30-fold quotients : {2,2,4}*32, {4,2,2}*32
40-fold quotients : {3,2,2}*24
60-fold quotients : {2,2,2}*16
Covers (Minimal Covers in Boldface) :
2-fold covers : {12,4,20}*1920, {12,2,40}*1920, {24,2,20}*1920
Permutation Representation (GAP) :
s0 := ( 2, 3)( 4, 5)( 7,10)( 8, 9)(11,12);;
s1 := ( 1, 7)( 2, 4)( 3,11)( 5, 8)( 6, 9)(10,12);;
s2 := (14,15)(16,17)(19,22)(20,21)(23,24)(25,26)(27,30)(28,29)(31,32);;
s3 := (13,19)(14,16)(15,25)(17,27)(18,21)(20,23)(22,31)(24,28)(26,29)(30,32);;
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,
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1,
s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3 ];;
poly := F / rels;;
Permutation Representation (Magma) :
s0 := Sym(32)!( 2, 3)( 4, 5)( 7,10)( 8, 9)(11,12);
s1 := Sym(32)!( 1, 7)( 2, 4)( 3,11)( 5, 8)( 6, 9)(10,12);
s2 := Sym(32)!(14,15)(16,17)(19,22)(20,21)(23,24)(25,26)(27,30)(28,29)(31,32);
s3 := Sym(32)!(13,19)(14,16)(15,25)(17,27)(18,21)(20,23)(22,31)(24,28)(26,29)
(30,32);
poly := sub<Sym(32)|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, s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1,
s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3 >;
to this polytope