include("/home/bitnami/htdocs/websites/abstract-polytopes/www/subs.php"); ?>
Polytope of Type {18,6}
This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {18,6}*1728c
if this polytope has a name.
Group : SmallGroup(1728,46100)
Rank : 3
Schlafli Type : {18,6}
Number of vertices, edges, etc : 144, 432, 48
Order of s0s1s2 : 18
Order of s0s1s2s1 : 4
Special Properties :
Compact Hyperbolic Quotient
Locally Spherical
Non-Orientable
Related Polytopes :
Facet
Vertex Figure
Dual
Petrial
Facet Of :
None in this Atlas
Vertex Figure Of :
None in this Atlas
Quotients (Maximal Quotients in Boldface) :
3-fold quotients : {6,6}*576c
Covers (Minimal Covers in Boldface) :
None in this atlas.
Permutation Representation (GAP) :
s0 := ( 2, 5)( 3, 9)( 4, 13)( 7, 10)( 8, 14)( 12, 15)( 17, 33)( 18, 37)
( 19, 41)( 20, 45)( 21, 34)( 22, 38)( 23, 42)( 24, 46)( 25, 35)( 26, 39)
( 27, 43)( 28, 47)( 29, 36)( 30, 40)( 31, 44)( 32, 48)( 49,129)( 50,133)
( 51,137)( 52,141)( 53,130)( 54,134)( 55,138)( 56,142)( 57,131)( 58,135)
( 59,139)( 60,143)( 61,132)( 62,136)( 63,140)( 64,144)( 65,113)( 66,117)
( 67,121)( 68,125)( 69,114)( 70,118)( 71,122)( 72,126)( 73,115)( 74,119)
( 75,123)( 76,127)( 77,116)( 78,120)( 79,124)( 80,128)( 81, 97)( 82,101)
( 83,105)( 84,109)( 85, 98)( 86,102)( 87,106)( 88,110)( 89, 99)( 90,103)
( 91,107)( 92,111)( 93,100)( 94,104)( 95,108)( 96,112);;
s1 := ( 1, 49)( 2, 50)( 3, 52)( 4, 51)( 5, 61)( 6, 62)( 7, 64)( 8, 63)
( 9, 57)( 10, 58)( 11, 60)( 12, 59)( 13, 53)( 14, 54)( 15, 56)( 16, 55)
( 17, 81)( 18, 82)( 19, 84)( 20, 83)( 21, 93)( 22, 94)( 23, 96)( 24, 95)
( 25, 89)( 26, 90)( 27, 92)( 28, 91)( 29, 85)( 30, 86)( 31, 88)( 32, 87)
( 33, 65)( 34, 66)( 35, 68)( 36, 67)( 37, 77)( 38, 78)( 39, 80)( 40, 79)
( 41, 73)( 42, 74)( 43, 76)( 44, 75)( 45, 69)( 46, 70)( 47, 72)( 48, 71)
( 97,129)( 98,130)( 99,132)(100,131)(101,141)(102,142)(103,144)(104,143)
(105,137)(106,138)(107,140)(108,139)(109,133)(110,134)(111,136)(112,135)
(115,116)(117,125)(118,126)(119,128)(120,127)(123,124);;
s2 := ( 1, 6)( 3, 10)( 4, 14)( 7, 9)( 8, 13)( 12, 15)( 17, 22)( 19, 26)
( 20, 30)( 23, 25)( 24, 29)( 28, 31)( 33, 38)( 35, 42)( 36, 46)( 39, 41)
( 40, 45)( 44, 47)( 49, 54)( 51, 58)( 52, 62)( 55, 57)( 56, 61)( 60, 63)
( 65, 70)( 67, 74)( 68, 78)( 71, 73)( 72, 77)( 76, 79)( 81, 86)( 83, 90)
( 84, 94)( 87, 89)( 88, 93)( 92, 95)( 97,102)( 99,106)(100,110)(103,105)
(104,109)(108,111)(113,118)(115,122)(116,126)(119,121)(120,125)(124,127)
(129,134)(131,138)(132,142)(135,137)(136,141)(140,143);;
poly := Group([s0,s1,s2]);;
Finitely Presented Group Representation (GAP) :
F := FreeGroup("s0","s1","s2");;
s0 := F.1;; s1 := F.2;; s2 := F.3;;
rels := [ s0*s0, s1*s1, s2*s2, s0*s2*s0*s2, s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2,
s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1,
s2*s0*s1*s2*s1*s2*s0*s1*s0*s1*s2*s0*s1*s2*s1*s2*s0*s1*s0*s1,
s0*s1*s0*s1*s0*s1*s2*s0*s1*s0*s1*s0*s1*s2*s0*s1*s0*s1*s0*s1*s2,
s0*s1*s2*s1*s2*s0*s1*s2*s0*s1*s2*s0*s1*s2*s0*s1*s2*s1*s0*s1*s0*s1*s0*s1 ];;
poly := F / rels;;
Permutation Representation (Magma) :
s0 := Sym(144)!( 2, 5)( 3, 9)( 4, 13)( 7, 10)( 8, 14)( 12, 15)( 17, 33)
( 18, 37)( 19, 41)( 20, 45)( 21, 34)( 22, 38)( 23, 42)( 24, 46)( 25, 35)
( 26, 39)( 27, 43)( 28, 47)( 29, 36)( 30, 40)( 31, 44)( 32, 48)( 49,129)
( 50,133)( 51,137)( 52,141)( 53,130)( 54,134)( 55,138)( 56,142)( 57,131)
( 58,135)( 59,139)( 60,143)( 61,132)( 62,136)( 63,140)( 64,144)( 65,113)
( 66,117)( 67,121)( 68,125)( 69,114)( 70,118)( 71,122)( 72,126)( 73,115)
( 74,119)( 75,123)( 76,127)( 77,116)( 78,120)( 79,124)( 80,128)( 81, 97)
( 82,101)( 83,105)( 84,109)( 85, 98)( 86,102)( 87,106)( 88,110)( 89, 99)
( 90,103)( 91,107)( 92,111)( 93,100)( 94,104)( 95,108)( 96,112);
s1 := Sym(144)!( 1, 49)( 2, 50)( 3, 52)( 4, 51)( 5, 61)( 6, 62)( 7, 64)
( 8, 63)( 9, 57)( 10, 58)( 11, 60)( 12, 59)( 13, 53)( 14, 54)( 15, 56)
( 16, 55)( 17, 81)( 18, 82)( 19, 84)( 20, 83)( 21, 93)( 22, 94)( 23, 96)
( 24, 95)( 25, 89)( 26, 90)( 27, 92)( 28, 91)( 29, 85)( 30, 86)( 31, 88)
( 32, 87)( 33, 65)( 34, 66)( 35, 68)( 36, 67)( 37, 77)( 38, 78)( 39, 80)
( 40, 79)( 41, 73)( 42, 74)( 43, 76)( 44, 75)( 45, 69)( 46, 70)( 47, 72)
( 48, 71)( 97,129)( 98,130)( 99,132)(100,131)(101,141)(102,142)(103,144)
(104,143)(105,137)(106,138)(107,140)(108,139)(109,133)(110,134)(111,136)
(112,135)(115,116)(117,125)(118,126)(119,128)(120,127)(123,124);
s2 := Sym(144)!( 1, 6)( 3, 10)( 4, 14)( 7, 9)( 8, 13)( 12, 15)( 17, 22)
( 19, 26)( 20, 30)( 23, 25)( 24, 29)( 28, 31)( 33, 38)( 35, 42)( 36, 46)
( 39, 41)( 40, 45)( 44, 47)( 49, 54)( 51, 58)( 52, 62)( 55, 57)( 56, 61)
( 60, 63)( 65, 70)( 67, 74)( 68, 78)( 71, 73)( 72, 77)( 76, 79)( 81, 86)
( 83, 90)( 84, 94)( 87, 89)( 88, 93)( 92, 95)( 97,102)( 99,106)(100,110)
(103,105)(104,109)(108,111)(113,118)(115,122)(116,126)(119,121)(120,125)
(124,127)(129,134)(131,138)(132,142)(135,137)(136,141)(140,143);
poly := sub<Sym(144)|s0,s1,s2>;
Finitely Presented Group Representation (Magma) :
poly<s0,s1,s2> := Group< s0,s1,s2 | s0*s0, s1*s1, s2*s2,
s0*s2*s0*s2, s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2,
s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1*s0*s1*s2*s1,
s2*s0*s1*s2*s1*s2*s0*s1*s0*s1*s2*s0*s1*s2*s1*s2*s0*s1*s0*s1,
s0*s1*s0*s1*s0*s1*s2*s0*s1*s0*s1*s0*s1*s2*s0*s1*s0*s1*s0*s1*s2,
s0*s1*s2*s1*s2*s0*s1*s2*s0*s1*s2*s0*s1*s2*s0*s1*s2*s1*s0*s1*s0*s1*s0*s1 >;
References : None.
to this polytope