Part of the Atlas of Small Regular Polytopes

Polytope of Type {2,84,4}

Atlas Canonical Name {2,84,4}*1344a

Overview

Group
SmallGroup(1344,10867)
Rank
4
Schläfli Type
{2,84,4}
Vertices, edges, …
2, 84, 168, 4
Order of s0s1s2s3
84
Order of s0s1s2s3s2s1
2
Also known as
if this polytope has a name.

Special Properties

  • Degenerate
  • Universal
  • Orientable
  • Flat

Quotients maximal quotients in bold

2-fold

3-fold

4-fold

6-fold

7-fold

8-fold

12-fold

14-fold

21-fold

24-fold

28-fold

42-fold

56-fold

84-fold

Covers minimal covers in bold

None in this atlas.

Representations

Permutation Representation (GAP)
s0 := (1,2);;
s1 := (  4,  9)(  5,  8)(  6,  7)( 10, 17)( 11, 23)( 12, 22)( 13, 21)( 14, 20)( 15, 19)( 16, 18)( 25, 30)( 26, 29)( 27, 28)( 31, 38)( 32, 44)( 33, 43)( 34, 42)( 35, 41)( 36, 40)( 37, 39)( 46, 51)( 47, 50)( 48, 49)( 52, 59)( 53, 65)( 54, 64)( 55, 63)( 56, 62)( 57, 61)( 58, 60)( 67, 72)( 68, 71)( 69, 70)( 73, 80)( 74, 86)( 75, 85)( 76, 84)( 77, 83)( 78, 82)( 79, 81)( 87,129)( 88,135)( 89,134)( 90,133)( 91,132)( 92,131)( 93,130)( 94,143)( 95,149)( 96,148)( 97,147)( 98,146)( 99,145)(100,144)(101,136)(102,142)(103,141)(104,140)(105,139)(106,138)(107,137)(108,150)(109,156)(110,155)(111,154)(112,153)(113,152)(114,151)(115,164)(116,170)(117,169)(118,168)(119,167)(120,166)(121,165)(122,157)(123,163)(124,162)(125,161)(126,160)(127,159)(128,158);;
s2 := (  3, 95)(  4, 94)(  5,100)(  6, 99)(  7, 98)(  8, 97)(  9, 96)( 10, 88)( 11, 87)( 12, 93)( 13, 92)( 14, 91)( 15, 90)( 16, 89)( 17,102)( 18,101)( 19,107)( 20,106)( 21,105)( 22,104)( 23,103)( 24,116)( 25,115)( 26,121)( 27,120)( 28,119)( 29,118)( 30,117)( 31,109)( 32,108)( 33,114)( 34,113)( 35,112)( 36,111)( 37,110)( 38,123)( 39,122)( 40,128)( 41,127)( 42,126)( 43,125)( 44,124)( 45,137)( 46,136)( 47,142)( 48,141)( 49,140)( 50,139)( 51,138)( 52,130)( 53,129)( 54,135)( 55,134)( 56,133)( 57,132)( 58,131)( 59,144)( 60,143)( 61,149)( 62,148)( 63,147)( 64,146)( 65,145)( 66,158)( 67,157)( 68,163)( 69,162)( 70,161)( 71,160)( 72,159)( 73,151)( 74,150)( 75,156)( 76,155)( 77,154)( 78,153)( 79,152)( 80,165)( 81,164)( 82,170)( 83,169)( 84,168)( 85,167)( 86,166);;
s3 := ( 87,108)( 88,109)( 89,110)( 90,111)( 91,112)( 92,113)( 93,114)( 94,115)( 95,116)( 96,117)( 97,118)( 98,119)( 99,120)(100,121)(101,122)(102,123)(103,124)(104,125)(105,126)(106,127)(107,128)(129,150)(130,151)(131,152)(132,153)(133,154)(134,155)(135,156)(136,157)(137,158)(138,159)(139,160)(140,161)(141,162)(142,163)(143,164)(144,165)(145,166)(146,167)(147,168)(148,169)(149,170);;
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, 
s1*s2*s3*s2*s1*s2*s3*s2, s2*s3*s2*s3*s2*s3*s2*s3, 
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2 ];;
poly := F / rels;;
Permutation Representation (Magma)
s0 := Sym(170)!(1,2);
s1 := Sym(170)!(  4,  9)(  5,  8)(  6,  7)( 10, 17)( 11, 23)( 12, 22)( 13, 21)( 14, 20)( 15, 19)( 16, 18)( 25, 30)( 26, 29)( 27, 28)( 31, 38)( 32, 44)( 33, 43)( 34, 42)( 35, 41)( 36, 40)( 37, 39)( 46, 51)( 47, 50)( 48, 49)( 52, 59)( 53, 65)( 54, 64)( 55, 63)( 56, 62)( 57, 61)( 58, 60)( 67, 72)( 68, 71)( 69, 70)( 73, 80)( 74, 86)( 75, 85)( 76, 84)( 77, 83)( 78, 82)( 79, 81)( 87,129)( 88,135)( 89,134)( 90,133)( 91,132)( 92,131)( 93,130)( 94,143)( 95,149)( 96,148)( 97,147)( 98,146)( 99,145)(100,144)(101,136)(102,142)(103,141)(104,140)(105,139)(106,138)(107,137)(108,150)(109,156)(110,155)(111,154)(112,153)(113,152)(114,151)(115,164)(116,170)(117,169)(118,168)(119,167)(120,166)(121,165)(122,157)(123,163)(124,162)(125,161)(126,160)(127,159)(128,158);
s2 := Sym(170)!(  3, 95)(  4, 94)(  5,100)(  6, 99)(  7, 98)(  8, 97)(  9, 96)( 10, 88)( 11, 87)( 12, 93)( 13, 92)( 14, 91)( 15, 90)( 16, 89)( 17,102)( 18,101)( 19,107)( 20,106)( 21,105)( 22,104)( 23,103)( 24,116)( 25,115)( 26,121)( 27,120)( 28,119)( 29,118)( 30,117)( 31,109)( 32,108)( 33,114)( 34,113)( 35,112)( 36,111)( 37,110)( 38,123)( 39,122)( 40,128)( 41,127)( 42,126)( 43,125)( 44,124)( 45,137)( 46,136)( 47,142)( 48,141)( 49,140)( 50,139)( 51,138)( 52,130)( 53,129)( 54,135)( 55,134)( 56,133)( 57,132)( 58,131)( 59,144)( 60,143)( 61,149)( 62,148)( 63,147)( 64,146)( 65,145)( 66,158)( 67,157)( 68,163)( 69,162)( 70,161)( 71,160)( 72,159)( 73,151)( 74,150)( 75,156)( 76,155)( 77,154)( 78,153)( 79,152)( 80,165)( 81,164)( 82,170)( 83,169)( 84,168)( 85,167)( 86,166);
s3 := Sym(170)!( 87,108)( 88,109)( 89,110)( 90,111)( 91,112)( 92,113)( 93,114)( 94,115)( 95,116)( 96,117)( 97,118)( 98,119)( 99,120)(100,121)(101,122)(102,123)(103,124)(104,125)(105,126)(106,127)(107,128)(129,150)(130,151)(131,152)(132,153)(133,154)(134,155)(135,156)(136,157)(137,158)(138,159)(139,160)(140,161)(141,162)(142,163)(143,164)(144,165)(145,166)(146,167)(147,168)(148,169)(149,170);
poly := sub<Sym(170)|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, s1*s2*s3*s2*s1*s2*s3*s2, 
s2*s3*s2*s3*s2*s3*s2*s3, s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2 >;