Polytope of Type {3,4,9}
This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {3,4,9}*1728
if this polytope has a name.
Group : SmallGroup(1728,46100)
Rank : 4
Schlafli Type : {3,4,9}
Number of vertices, edges, etc : 12, 48, 144, 36
Order of s0s1s2s3 : 18
Order of s0s1s2s3s2s1 : 4
Special Properties :
Orientable
Related Polytopes :
Facet
Vertex Figure
Dual
Facet Of :
None in this Atlas
Vertex Figure Of :
None in this Atlas
Quotients (Maximal Quotients in Boldface) :
3-fold quotients : {3,4,3}*576
16-fold quotients : {3,2,9}*108
48-fold quotients : {3,2,3}*36
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*s2*s1*s0*s2*s1> of order 2.
24 facets:
12 of 2-fold non-regular quotient of {3,4}*48
12 of {3,4}*48
8 vertex figures:
4 of {4,9}*144
4 of 2-fold non-regular quotient of {4,9}*144
P/N, where N=<s1*s2*s1*s2, s0*s1*s2*s1*s0*s2> of order 4.
18 facets:
12 of {3,2}*12
6 of {3,4}*48
6 vertex figures:
6 of 2-fold non-regular quotient of {4,9}*144
P/N, where N=<s0*s1*s0*s2*s1*s0*s2*s1, s0*s1*s0*s3*s2*s1*s0*s2*s1*s3> of order 4.
18 facets:
18 of 2-fold non-regular quotient of {3,4}*48
6 vertex figures:
2 of {4,9}*144
4 of {2,9}*36
P/N, where N=<s1*s2*s1*s2, s0*s1*s2*s1*s0*s2, s0*s1*s0*s3*s2*s1*s0*s2*s1*s3> of order 8.
12 facets:
6 of {3,2}*12
6 of 2-fold non-regular quotient of {3,4}*48
4 vertex figures:
2 of 2-fold non-regular quotient of {4,9}*144
2 of {2,9}*36
Permutation Representation (GAP) :
s0 := ( 2, 5)( 3, 13)( 4, 9)( 7, 14)( 8, 10)( 11, 16)( 18, 21)( 19, 29)( 20, 25)( 23, 30)( 24, 26)( 27, 32)( 34, 37)( 35, 45)( 36, 41)( 39, 46)( 40, 42)( 43, 48)( 50, 53)( 51, 61)( 52, 57)( 55, 62)( 56, 58)( 59, 64)( 66, 69)( 67, 77)( 68, 73)( 71, 78)( 72, 74)( 75, 80)( 82, 85)( 83, 93)( 84, 89)( 87, 94)( 88, 90)( 91, 96)( 98,101)( 99,109)(100,105)(103,110)(104,106)(107,112)(114,117)(115,125)(116,121)(119,126)(120,122)(123,128)(130,133)(131,141)(132,137)(135,142)(136,138)(139,144);;
s1 := ( 2, 13)( 3, 9)( 4, 5)( 6, 16)( 7, 12)( 10, 15)( 18, 29)( 19, 25)( 20, 21)( 22, 32)( 23, 28)( 26, 31)( 34, 45)( 35, 41)( 36, 37)( 38, 48)( 39, 44)( 42, 47)( 50, 61)( 51, 57)( 52, 53)( 54, 64)( 55, 60)( 58, 63)( 66, 77)( 67, 73)( 68, 69)( 70, 80)( 71, 76)( 74, 79)( 82, 93)( 83, 89)( 84, 85)( 86, 96)( 87, 92)( 90, 95)( 98,109)( 99,105)(100,101)(102,112)(103,108)(106,111)(114,125)(115,121)(116,117)(118,128)(119,124)(122,127)(130,141)(131,137)(132,133)(134,144)(135,140)(138,143);;
s2 := ( 1, 6)( 3, 14)( 4, 10)( 7, 13)( 8, 9)( 11, 16)( 17, 38)( 18, 34)( 19, 46)( 20, 42)( 21, 37)( 22, 33)( 23, 45)( 24, 41)( 25, 40)( 26, 36)( 27, 48)( 28, 44)( 29, 39)( 30, 35)( 31, 47)( 32, 43)( 49,134)( 50,130)( 51,142)( 52,138)( 53,133)( 54,129)( 55,141)( 56,137)( 57,136)( 58,132)( 59,144)( 60,140)( 61,135)( 62,131)( 63,143)( 64,139)( 65,118)( 66,114)( 67,126)( 68,122)( 69,117)( 70,113)( 71,125)( 72,121)( 73,120)( 74,116)( 75,128)( 76,124)( 77,119)( 78,115)( 79,127)( 80,123)( 81,102)( 82, 98)( 83,110)( 84,106)( 85,101)( 86, 97)( 87,109)( 88,105)( 89,104)( 90,100)( 91,112)( 92,108)( 93,103)( 94, 99)( 95,111)( 96,107);;
s3 := ( 1, 49)( 2, 57)( 3, 61)( 4, 53)( 5, 52)( 6, 60)( 7, 64)( 8, 56)( 9, 50)( 10, 58)( 11, 62)( 12, 54)( 13, 51)( 14, 59)( 15, 63)( 16, 55)( 17, 81)( 18, 89)( 19, 93)( 20, 85)( 21, 84)( 22, 92)( 23, 96)( 24, 88)( 25, 82)( 26, 90)( 27, 94)( 28, 86)( 29, 83)( 30, 91)( 31, 95)( 32, 87)( 33, 65)( 34, 73)( 35, 77)( 36, 69)( 37, 68)( 38, 76)( 39, 80)( 40, 72)( 41, 66)( 42, 74)( 43, 78)( 44, 70)( 45, 67)( 46, 75)( 47, 79)( 48, 71)( 97,129)( 98,137)( 99,141)(100,133)(101,132)(102,140)(103,144)(104,136)(105,130)(106,138)(107,142)(108,134)(109,131)(110,139)(111,143)(112,135)(114,121)(115,125)(116,117)(118,124)(119,128)(123,126);;
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, s0*s1*s0*s1*s0*s1,
s1*s2*s1*s2*s1*s2*s1*s2, s1*s2*s3*s2*s3*s2*s1*s2*s3*s2*s3*s2,
s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3,
s1*s2*s1*s0*s2*s1*s2*s3*s2*s1*s0*s2*s3*s1*s2*s3*s1*s0*s2*s1*s2*s3*s1*s0 ];;
poly := F / rels;;
Permutation Representation (Magma) :
s0 := Sym(144)!( 2, 5)( 3, 13)( 4, 9)( 7, 14)( 8, 10)( 11, 16)( 18, 21)( 19, 29)( 20, 25)( 23, 30)( 24, 26)( 27, 32)( 34, 37)( 35, 45)( 36, 41)( 39, 46)( 40, 42)( 43, 48)( 50, 53)( 51, 61)( 52, 57)( 55, 62)( 56, 58)( 59, 64)( 66, 69)( 67, 77)( 68, 73)( 71, 78)( 72, 74)( 75, 80)( 82, 85)( 83, 93)( 84, 89)( 87, 94)( 88, 90)( 91, 96)( 98,101)( 99,109)(100,105)(103,110)(104,106)(107,112)(114,117)(115,125)(116,121)(119,126)(120,122)(123,128)(130,133)(131,141)(132,137)(135,142)(136,138)(139,144);
s1 := Sym(144)!( 2, 13)( 3, 9)( 4, 5)( 6, 16)( 7, 12)( 10, 15)( 18, 29)( 19, 25)( 20, 21)( 22, 32)( 23, 28)( 26, 31)( 34, 45)( 35, 41)( 36, 37)( 38, 48)( 39, 44)( 42, 47)( 50, 61)( 51, 57)( 52, 53)( 54, 64)( 55, 60)( 58, 63)( 66, 77)( 67, 73)( 68, 69)( 70, 80)( 71, 76)( 74, 79)( 82, 93)( 83, 89)( 84, 85)( 86, 96)( 87, 92)( 90, 95)( 98,109)( 99,105)(100,101)(102,112)(103,108)(106,111)(114,125)(115,121)(116,117)(118,128)(119,124)(122,127)(130,141)(131,137)(132,133)(134,144)(135,140)(138,143);
s2 := Sym(144)!( 1, 6)( 3, 14)( 4, 10)( 7, 13)( 8, 9)( 11, 16)( 17, 38)( 18, 34)( 19, 46)( 20, 42)( 21, 37)( 22, 33)( 23, 45)( 24, 41)( 25, 40)( 26, 36)( 27, 48)( 28, 44)( 29, 39)( 30, 35)( 31, 47)( 32, 43)( 49,134)( 50,130)( 51,142)( 52,138)( 53,133)( 54,129)( 55,141)( 56,137)( 57,136)( 58,132)( 59,144)( 60,140)( 61,135)( 62,131)( 63,143)( 64,139)( 65,118)( 66,114)( 67,126)( 68,122)( 69,117)( 70,113)( 71,125)( 72,121)( 73,120)( 74,116)( 75,128)( 76,124)( 77,119)( 78,115)( 79,127)( 80,123)( 81,102)( 82, 98)( 83,110)( 84,106)( 85,101)( 86, 97)( 87,109)( 88,105)( 89,104)( 90,100)( 91,112)( 92,108)( 93,103)( 94, 99)( 95,111)( 96,107);
s3 := Sym(144)!( 1, 49)( 2, 57)( 3, 61)( 4, 53)( 5, 52)( 6, 60)( 7, 64)( 8, 56)( 9, 50)( 10, 58)( 11, 62)( 12, 54)( 13, 51)( 14, 59)( 15, 63)( 16, 55)( 17, 81)( 18, 89)( 19, 93)( 20, 85)( 21, 84)( 22, 92)( 23, 96)( 24, 88)( 25, 82)( 26, 90)( 27, 94)( 28, 86)( 29, 83)( 30, 91)( 31, 95)( 32, 87)( 33, 65)( 34, 73)( 35, 77)( 36, 69)( 37, 68)( 38, 76)( 39, 80)( 40, 72)( 41, 66)( 42, 74)( 43, 78)( 44, 70)( 45, 67)( 46, 75)( 47, 79)( 48, 71)( 97,129)( 98,137)( 99,141)(100,133)(101,132)(102,140)(103,144)(104,136)(105,130)(106,138)(107,142)(108,134)(109,131)(110,139)(111,143)(112,135)(114,121)(115,125)(116,117)(118,124)(119,128)(123,126);
poly := sub<Sym(144)|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,
s0*s1*s0*s1*s0*s1, s1*s2*s1*s2*s1*s2*s1*s2,
s1*s2*s3*s2*s3*s2*s1*s2*s3*s2*s3*s2,
s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3*s2*s3,
s1*s2*s1*s0*s2*s1*s2*s3*s2*s1*s0*s2*s3*s1*s2*s3*s1*s0*s2*s1*s2*s3*s1*s0 >;
References : None.
to this polytope