Polytope of Type {6,6,8}

This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {6,6,8}*1728e
if this polytope has a name.
Group : SmallGroup(1728,37593)
Rank : 4
Schlafli Type : {6,6,8}
Number of vertices, edges, etc : 18, 54, 72, 8
Order of s₀s₁s₂s₃ : 24
Order of s₀s₁s₂s₃s₂s₁ : 2
Special Properties :
   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 : {6,6,4}*864h
   3-fold quotients : {6,6,8}*576a, {6,6,8}*576b, {6,6,8}*576c
   4-fold quotients : {6,6,2}*432d
   6-fold quotients : {3,6,8}*288, {6,6,4}*288a, {6,6,4}*288b, {6,6,4}*288c
   9-fold quotients : {2,6,8}*192, {6,2,8}*192
   12-fold quotients : {3,6,4}*144, {6,6,2}*144a, {6,6,2}*144b, {6,6,2}*144c
   18-fold quotients : {3,2,8}*96, {2,6,4}*96a, {6,2,4}*96
   24-fold quotients : {3,6,2}*72, {6,3,2}*72
   27-fold quotients : {2,2,8}*64
   36-fold quotients : {3,2,4}*48, {2,6,2}*48, {6,2,2}*48
   54-fold quotients : {2,2,4}*32
   72-fold quotients : {2,3,2}*24, {3,2,2}*24
   108-fold quotients : {2,2,2}*16
Covers (Minimal Covers in Boldface) :
   None in this atlas.
Irregular Quotients (of which this is a minimal cover):
   P/N, where N=<s0*s1*s0*s1*s0*s1> of order 2.
      8 facets:
         8 of 2-fold non-regular quotient of {6,6}*216d
      9 vertex figures:
         9 of {6,8}*96
   P/N, where N=<s0*s1*s2*s1*s0*s2> of order 3.
      8 facets:
         8 of 3-fold non-regular quotient of {6,6}*216d
      12 vertex figures:
         3 of {6,8}*96
         9 of {2,8}*32
   P/N, where N=<s0*s1*s0*s1> of order 3.
      8 facets:
         8 of 3-fold non-regular quotient of {6,6}*216d
      6 vertex figures:
         6 of {6,8}*96

Permutation Representation (GAP) :

s0 := (  2,  3)(  5,  6)(  8,  9)( 10, 19)( 11, 21)( 12, 20)( 13, 22)( 14, 24)( 15, 23)( 16, 25)( 17, 27)( 18, 26)( 29, 30)( 32, 33)( 35, 36)( 37, 46)( 38, 48)( 39, 47)( 40, 49)( 41, 51)( 42, 50)( 43, 52)( 44, 54)( 45, 53)( 56, 57)( 59, 60)( 62, 63)( 64, 73)( 65, 75)( 66, 74)( 67, 76)( 68, 78)( 69, 77)( 70, 79)( 71, 81)( 72, 80)( 83, 84)( 86, 87)( 89, 90)( 91,100)( 92,102)( 93,101)( 94,103)( 95,105)( 96,104)( 97,106)( 98,108)( 99,107)(110,111)(113,114)(116,117)(118,127)(119,129)(120,128)(121,130)(122,132)(123,131)(124,133)(125,135)(126,134)(137,138)(140,141)(143,144)(145,154)(146,156)(147,155)(148,157)(149,159)(150,158)(151,160)(152,162)(153,161)(164,165)(167,168)(170,171)(172,181)(173,183)(174,182)(175,184)(176,186)(177,185)(178,187)(179,189)(180,188)(191,192)(194,195)(197,198)(199,208)(200,210)(201,209)(202,211)(203,213)(204,212)(205,214)(206,216)(207,215);;
s1 := (  1, 11)(  2, 10)(  3, 12)(  4, 17)(  5, 16)(  6, 18)(  7, 14)(  8, 13)(  9, 15)( 19, 20)( 22, 26)( 23, 25)( 24, 27)( 28, 38)( 29, 37)( 30, 39)( 31, 44)( 32, 43)( 33, 45)( 34, 41)( 35, 40)( 36, 42)( 46, 47)( 49, 53)( 50, 52)( 51, 54)( 55, 65)( 56, 64)( 57, 66)( 58, 71)( 59, 70)( 60, 72)( 61, 68)( 62, 67)( 63, 69)( 73, 74)( 76, 80)( 77, 79)( 78, 81)( 82, 92)( 83, 91)( 84, 93)( 85, 98)( 86, 97)( 87, 99)( 88, 95)( 89, 94)( 90, 96)(100,101)(103,107)(104,106)(105,108)(109,119)(110,118)(111,120)(112,125)(113,124)(114,126)(115,122)(116,121)(117,123)(127,128)(130,134)(131,133)(132,135)(136,146)(137,145)(138,147)(139,152)(140,151)(141,153)(142,149)(143,148)(144,150)(154,155)(157,161)(158,160)(159,162)(163,173)(164,172)(165,174)(166,179)(167,178)(168,180)(169,176)(170,175)(171,177)(181,182)(184,188)(185,187)(186,189)(190,200)(191,199)(192,201)(193,206)(194,205)(195,207)(196,203)(197,202)(198,204)(208,209)(211,215)(212,214)(213,216);;
s2 := (  1,  4)(  2,  5)(  3,  6)( 10, 22)( 11, 23)( 12, 24)( 13, 19)( 14, 20)( 15, 21)( 16, 25)( 17, 26)( 18, 27)( 28, 31)( 29, 32)( 30, 33)( 37, 49)( 38, 50)( 39, 51)( 40, 46)( 41, 47)( 42, 48)( 43, 52)( 44, 53)( 45, 54)( 55, 85)( 56, 86)( 57, 87)( 58, 82)( 59, 83)( 60, 84)( 61, 88)( 62, 89)( 63, 90)( 64,103)( 65,104)( 66,105)( 67,100)( 68,101)( 69,102)( 70,106)( 71,107)( 72,108)( 73, 94)( 74, 95)( 75, 96)( 76, 91)( 77, 92)( 78, 93)( 79, 97)( 80, 98)( 81, 99)(109,166)(110,167)(111,168)(112,163)(113,164)(114,165)(115,169)(116,170)(117,171)(118,184)(119,185)(120,186)(121,181)(122,182)(123,183)(124,187)(125,188)(126,189)(127,175)(128,176)(129,177)(130,172)(131,173)(132,174)(133,178)(134,179)(135,180)(136,193)(137,194)(138,195)(139,190)(140,191)(141,192)(142,196)(143,197)(144,198)(145,211)(146,212)(147,213)(148,208)(149,209)(150,210)(151,214)(152,215)(153,216)(154,202)(155,203)(156,204)(157,199)(158,200)(159,201)(160,205)(161,206)(162,207);;
s3 := (  1,109)(  2,110)(  3,111)(  4,112)(  5,113)(  6,114)(  7,115)(  8,116)(  9,117)( 10,118)( 11,119)( 12,120)( 13,121)( 14,122)( 15,123)( 16,124)( 17,125)( 18,126)( 19,127)( 20,128)( 21,129)( 22,130)( 23,131)( 24,132)( 25,133)( 26,134)( 27,135)( 28,136)( 29,137)( 30,138)( 31,139)( 32,140)( 33,141)( 34,142)( 35,143)( 36,144)( 37,145)( 38,146)( 39,147)( 40,148)( 41,149)( 42,150)( 43,151)( 44,152)( 45,153)( 46,154)( 47,155)( 48,156)( 49,157)( 50,158)( 51,159)( 52,160)( 53,161)( 54,162)( 55,190)( 56,191)( 57,192)( 58,193)( 59,194)( 60,195)( 61,196)( 62,197)( 63,198)( 64,199)( 65,200)( 66,201)( 67,202)( 68,203)( 69,204)( 70,205)( 71,206)( 72,207)( 73,208)( 74,209)( 75,210)( 76,211)( 77,212)( 78,213)( 79,214)( 80,215)( 81,216)( 82,163)( 83,164)( 84,165)( 85,166)( 86,167)( 87,168)( 88,169)( 89,170)( 90,171)( 91,172)( 92,173)( 93,174)( 94,175)( 95,176)( 96,177)( 97,178)( 98,179)( 99,180)(100,181)(101,182)(102,183)(103,184)(104,185)(105,186)(106,187)(107,188)(108,189);;
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, 
s0*s3*s0*s3, s1*s3*s1*s3, s1*s2*s3*s2*s1*s2*s3*s2, 
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1, 
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2, 
s0*s1*s2*s1*s2*s0*s1*s0*s1*s2*s1*s2*s0*s1, 
s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3 ];;
poly := F / rels;;

Permutation Representation (Magma) :

s0 := Sym(216)!(  2,  3)(  5,  6)(  8,  9)( 10, 19)( 11, 21)( 12, 20)( 13, 22)( 14, 24)( 15, 23)( 16, 25)( 17, 27)( 18, 26)( 29, 30)( 32, 33)( 35, 36)( 37, 46)( 38, 48)( 39, 47)( 40, 49)( 41, 51)( 42, 50)( 43, 52)( 44, 54)( 45, 53)( 56, 57)( 59, 60)( 62, 63)( 64, 73)( 65, 75)( 66, 74)( 67, 76)( 68, 78)( 69, 77)( 70, 79)( 71, 81)( 72, 80)( 83, 84)( 86, 87)( 89, 90)( 91,100)( 92,102)( 93,101)( 94,103)( 95,105)( 96,104)( 97,106)( 98,108)( 99,107)(110,111)(113,114)(116,117)(118,127)(119,129)(120,128)(121,130)(122,132)(123,131)(124,133)(125,135)(126,134)(137,138)(140,141)(143,144)(145,154)(146,156)(147,155)(148,157)(149,159)(150,158)(151,160)(152,162)(153,161)(164,165)(167,168)(170,171)(172,181)(173,183)(174,182)(175,184)(176,186)(177,185)(178,187)(179,189)(180,188)(191,192)(194,195)(197,198)(199,208)(200,210)(201,209)(202,211)(203,213)(204,212)(205,214)(206,216)(207,215);
s1 := Sym(216)!(  1, 11)(  2, 10)(  3, 12)(  4, 17)(  5, 16)(  6, 18)(  7, 14)(  8, 13)(  9, 15)( 19, 20)( 22, 26)( 23, 25)( 24, 27)( 28, 38)( 29, 37)( 30, 39)( 31, 44)( 32, 43)( 33, 45)( 34, 41)( 35, 40)( 36, 42)( 46, 47)( 49, 53)( 50, 52)( 51, 54)( 55, 65)( 56, 64)( 57, 66)( 58, 71)( 59, 70)( 60, 72)( 61, 68)( 62, 67)( 63, 69)( 73, 74)( 76, 80)( 77, 79)( 78, 81)( 82, 92)( 83, 91)( 84, 93)( 85, 98)( 86, 97)( 87, 99)( 88, 95)( 89, 94)( 90, 96)(100,101)(103,107)(104,106)(105,108)(109,119)(110,118)(111,120)(112,125)(113,124)(114,126)(115,122)(116,121)(117,123)(127,128)(130,134)(131,133)(132,135)(136,146)(137,145)(138,147)(139,152)(140,151)(141,153)(142,149)(143,148)(144,150)(154,155)(157,161)(158,160)(159,162)(163,173)(164,172)(165,174)(166,179)(167,178)(168,180)(169,176)(170,175)(171,177)(181,182)(184,188)(185,187)(186,189)(190,200)(191,199)(192,201)(193,206)(194,205)(195,207)(196,203)(197,202)(198,204)(208,209)(211,215)(212,214)(213,216);
s2 := Sym(216)!(  1,  4)(  2,  5)(  3,  6)( 10, 22)( 11, 23)( 12, 24)( 13, 19)( 14, 20)( 15, 21)( 16, 25)( 17, 26)( 18, 27)( 28, 31)( 29, 32)( 30, 33)( 37, 49)( 38, 50)( 39, 51)( 40, 46)( 41, 47)( 42, 48)( 43, 52)( 44, 53)( 45, 54)( 55, 85)( 56, 86)( 57, 87)( 58, 82)( 59, 83)( 60, 84)( 61, 88)( 62, 89)( 63, 90)( 64,103)( 65,104)( 66,105)( 67,100)( 68,101)( 69,102)( 70,106)( 71,107)( 72,108)( 73, 94)( 74, 95)( 75, 96)( 76, 91)( 77, 92)( 78, 93)( 79, 97)( 80, 98)( 81, 99)(109,166)(110,167)(111,168)(112,163)(113,164)(114,165)(115,169)(116,170)(117,171)(118,184)(119,185)(120,186)(121,181)(122,182)(123,183)(124,187)(125,188)(126,189)(127,175)(128,176)(129,177)(130,172)(131,173)(132,174)(133,178)(134,179)(135,180)(136,193)(137,194)(138,195)(139,190)(140,191)(141,192)(142,196)(143,197)(144,198)(145,211)(146,212)(147,213)(148,208)(149,209)(150,210)(151,214)(152,215)(153,216)(154,202)(155,203)(156,204)(157,199)(158,200)(159,201)(160,205)(161,206)(162,207);
s3 := Sym(216)!(  1,109)(  2,110)(  3,111)(  4,112)(  5,113)(  6,114)(  7,115)(  8,116)(  9,117)( 10,118)( 11,119)( 12,120)( 13,121)( 14,122)( 15,123)( 16,124)( 17,125)( 18,126)( 19,127)( 20,128)( 21,129)( 22,130)( 23,131)( 24,132)( 25,133)( 26,134)( 27,135)( 28,136)( 29,137)( 30,138)( 31,139)( 32,140)( 33,141)( 34,142)( 35,143)( 36,144)( 37,145)( 38,146)( 39,147)( 40,148)( 41,149)( 42,150)( 43,151)( 44,152)( 45,153)( 46,154)( 47,155)( 48,156)( 49,157)( 50,158)( 51,159)( 52,160)( 53,161)( 54,162)( 55,190)( 56,191)( 57,192)( 58,193)( 59,194)( 60,195)( 61,196)( 62,197)( 63,198)( 64,199)( 65,200)( 66,201)( 67,202)( 68,203)( 69,204)( 70,205)( 71,206)( 72,207)( 73,208)( 74,209)( 75,210)( 76,211)( 77,212)( 78,213)( 79,214)( 80,215)( 81,216)( 82,163)( 83,164)( 84,165)( 85,166)( 86,167)( 87,168)( 88,169)( 89,170)( 90,171)( 91,172)( 92,173)( 93,174)( 94,175)( 95,176)( 96,177)( 97,178)( 98,179)( 99,180)(100,181)(101,182)(102,183)(103,184)(104,185)(105,186)(106,187)(107,188)(108,189);
poly := sub<Sym(216)|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, s0*s3*s0*s3, s1*s3*s1*s3, 
s1*s2*s3*s2*s1*s2*s3*s2, s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1, 
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2, 
s0*s1*s2*s1*s2*s0*s1*s0*s1*s2*s1*s2*s0*s1, 
s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3 >;

References : None.
to this polytope