Polytope of Type {42,4,2,2}
This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {42,4,2,2}*1344c
if this polytope has a name.
Group : SmallGroup(1344,11701)
Rank : 5
Schlafli Type : {42,4,2,2}
Number of vertices, edges, etc : 42, 84, 4, 2, 2
Order of s0s1s2s3s4 : 42
Order of s0s1s2s3s4s3s2s1 : 2
Special Properties :
Degenerate
Universal
Non-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 : {21,4,2,2}*672
7-fold quotients : {6,4,2,2}*192b
14-fold quotients : {3,4,2,2}*96
Covers (Minimal Covers in Boldface) :
None in this atlas.
Permutation Representation (GAP) :
s0 := ( 2, 3)( 5, 25)( 6, 27)( 7, 26)( 8, 28)( 9, 21)( 10, 23)( 11, 22)
( 12, 24)( 13, 17)( 14, 19)( 15, 18)( 16, 20)( 29, 57)( 30, 59)( 31, 58)
( 32, 60)( 33, 81)( 34, 83)( 35, 82)( 36, 84)( 37, 77)( 38, 79)( 39, 78)
( 40, 80)( 41, 73)( 42, 75)( 43, 74)( 44, 76)( 45, 69)( 46, 71)( 47, 70)
( 48, 72)( 49, 65)( 50, 67)( 51, 66)( 52, 68)( 53, 61)( 54, 63)( 55, 62)
( 56, 64)( 86, 87)( 89,109)( 90,111)( 91,110)( 92,112)( 93,105)( 94,107)
( 95,106)( 96,108)( 97,101)( 98,103)( 99,102)(100,104)(113,141)(114,143)
(115,142)(116,144)(117,165)(118,167)(119,166)(120,168)(121,161)(122,163)
(123,162)(124,164)(125,157)(126,159)(127,158)(128,160)(129,153)(130,155)
(131,154)(132,156)(133,149)(134,151)(135,150)(136,152)(137,145)(138,147)
(139,146)(140,148);;
s1 := ( 1,117)( 2,118)( 3,120)( 4,119)( 5,113)( 6,114)( 7,116)( 8,115)
( 9,137)( 10,138)( 11,140)( 12,139)( 13,133)( 14,134)( 15,136)( 16,135)
( 17,129)( 18,130)( 19,132)( 20,131)( 21,125)( 22,126)( 23,128)( 24,127)
( 25,121)( 26,122)( 27,124)( 28,123)( 29, 89)( 30, 90)( 31, 92)( 32, 91)
( 33, 85)( 34, 86)( 35, 88)( 36, 87)( 37,109)( 38,110)( 39,112)( 40,111)
( 41,105)( 42,106)( 43,108)( 44,107)( 45,101)( 46,102)( 47,104)( 48,103)
( 49, 97)( 50, 98)( 51,100)( 52, 99)( 53, 93)( 54, 94)( 55, 96)( 56, 95)
( 57,145)( 58,146)( 59,148)( 60,147)( 61,141)( 62,142)( 63,144)( 64,143)
( 65,165)( 66,166)( 67,168)( 68,167)( 69,161)( 70,162)( 71,164)( 72,163)
( 73,157)( 74,158)( 75,160)( 76,159)( 77,153)( 78,154)( 79,156)( 80,155)
( 81,149)( 82,150)( 83,152)( 84,151);;
s2 := ( 1, 88)( 2, 87)( 3, 86)( 4, 85)( 5, 92)( 6, 91)( 7, 90)( 8, 89)
( 9, 96)( 10, 95)( 11, 94)( 12, 93)( 13,100)( 14, 99)( 15, 98)( 16, 97)
( 17,104)( 18,103)( 19,102)( 20,101)( 21,108)( 22,107)( 23,106)( 24,105)
( 25,112)( 26,111)( 27,110)( 28,109)( 29,116)( 30,115)( 31,114)( 32,113)
( 33,120)( 34,119)( 35,118)( 36,117)( 37,124)( 38,123)( 39,122)( 40,121)
( 41,128)( 42,127)( 43,126)( 44,125)( 45,132)( 46,131)( 47,130)( 48,129)
( 49,136)( 50,135)( 51,134)( 52,133)( 53,140)( 54,139)( 55,138)( 56,137)
( 57,144)( 58,143)( 59,142)( 60,141)( 61,148)( 62,147)( 63,146)( 64,145)
( 65,152)( 66,151)( 67,150)( 68,149)( 69,156)( 70,155)( 71,154)( 72,153)
( 73,160)( 74,159)( 75,158)( 76,157)( 77,164)( 78,163)( 79,162)( 80,161)
( 81,168)( 82,167)( 83,166)( 84,165);;
s3 := (169,170);;
s4 := (171,172);;
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,
s0*s3*s0*s3, s1*s3*s1*s3, s2*s3*s2*s3,
s0*s4*s0*s4, s1*s4*s1*s4, s2*s4*s2*s4,
s3*s4*s3*s4, s1*s2*s1*s2*s1*s2*s1*s2,
s0*s1*s2*s1*s0*s1*s0*s1*s2*s1*s0*s1,
s1*s2*s0*s1*s2*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*s2*s1*s0*s1*s0*s1*s0 ];;
poly := F / rels;;
Permutation Representation (Magma) :
s0 := Sym(172)!( 2, 3)( 5, 25)( 6, 27)( 7, 26)( 8, 28)( 9, 21)( 10, 23)
( 11, 22)( 12, 24)( 13, 17)( 14, 19)( 15, 18)( 16, 20)( 29, 57)( 30, 59)
( 31, 58)( 32, 60)( 33, 81)( 34, 83)( 35, 82)( 36, 84)( 37, 77)( 38, 79)
( 39, 78)( 40, 80)( 41, 73)( 42, 75)( 43, 74)( 44, 76)( 45, 69)( 46, 71)
( 47, 70)( 48, 72)( 49, 65)( 50, 67)( 51, 66)( 52, 68)( 53, 61)( 54, 63)
( 55, 62)( 56, 64)( 86, 87)( 89,109)( 90,111)( 91,110)( 92,112)( 93,105)
( 94,107)( 95,106)( 96,108)( 97,101)( 98,103)( 99,102)(100,104)(113,141)
(114,143)(115,142)(116,144)(117,165)(118,167)(119,166)(120,168)(121,161)
(122,163)(123,162)(124,164)(125,157)(126,159)(127,158)(128,160)(129,153)
(130,155)(131,154)(132,156)(133,149)(134,151)(135,150)(136,152)(137,145)
(138,147)(139,146)(140,148);
s1 := Sym(172)!( 1,117)( 2,118)( 3,120)( 4,119)( 5,113)( 6,114)( 7,116)
( 8,115)( 9,137)( 10,138)( 11,140)( 12,139)( 13,133)( 14,134)( 15,136)
( 16,135)( 17,129)( 18,130)( 19,132)( 20,131)( 21,125)( 22,126)( 23,128)
( 24,127)( 25,121)( 26,122)( 27,124)( 28,123)( 29, 89)( 30, 90)( 31, 92)
( 32, 91)( 33, 85)( 34, 86)( 35, 88)( 36, 87)( 37,109)( 38,110)( 39,112)
( 40,111)( 41,105)( 42,106)( 43,108)( 44,107)( 45,101)( 46,102)( 47,104)
( 48,103)( 49, 97)( 50, 98)( 51,100)( 52, 99)( 53, 93)( 54, 94)( 55, 96)
( 56, 95)( 57,145)( 58,146)( 59,148)( 60,147)( 61,141)( 62,142)( 63,144)
( 64,143)( 65,165)( 66,166)( 67,168)( 68,167)( 69,161)( 70,162)( 71,164)
( 72,163)( 73,157)( 74,158)( 75,160)( 76,159)( 77,153)( 78,154)( 79,156)
( 80,155)( 81,149)( 82,150)( 83,152)( 84,151);
s2 := Sym(172)!( 1, 88)( 2, 87)( 3, 86)( 4, 85)( 5, 92)( 6, 91)( 7, 90)
( 8, 89)( 9, 96)( 10, 95)( 11, 94)( 12, 93)( 13,100)( 14, 99)( 15, 98)
( 16, 97)( 17,104)( 18,103)( 19,102)( 20,101)( 21,108)( 22,107)( 23,106)
( 24,105)( 25,112)( 26,111)( 27,110)( 28,109)( 29,116)( 30,115)( 31,114)
( 32,113)( 33,120)( 34,119)( 35,118)( 36,117)( 37,124)( 38,123)( 39,122)
( 40,121)( 41,128)( 42,127)( 43,126)( 44,125)( 45,132)( 46,131)( 47,130)
( 48,129)( 49,136)( 50,135)( 51,134)( 52,133)( 53,140)( 54,139)( 55,138)
( 56,137)( 57,144)( 58,143)( 59,142)( 60,141)( 61,148)( 62,147)( 63,146)
( 64,145)( 65,152)( 66,151)( 67,150)( 68,149)( 69,156)( 70,155)( 71,154)
( 72,153)( 73,160)( 74,159)( 75,158)( 76,157)( 77,164)( 78,163)( 79,162)
( 80,161)( 81,168)( 82,167)( 83,166)( 84,165);
s3 := Sym(172)!(169,170);
s4 := Sym(172)!(171,172);
poly := sub<Sym(172)|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, s0*s3*s0*s3,
s1*s3*s1*s3, s2*s3*s2*s3, s0*s4*s0*s4,
s1*s4*s1*s4, s2*s4*s2*s4, s3*s4*s3*s4,
s1*s2*s1*s2*s1*s2*s1*s2, s0*s1*s2*s1*s0*s1*s0*s1*s2*s1*s0*s1,
s1*s2*s0*s1*s2*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*s2*s1*s0*s1*s0*s1*s0 >;
to this polytope