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G = C42.275D4  order 128 = 27

257th non-split extension by C42 of D4 acting via D4/C2=C22

p-group, metabelian, nilpotent (class 3), monomial, rational

Aliases: C42.275D4, C42.403C23, C4.1092+ 1+4, C4⋊D8⋊26C2, C8⋊3D4⋊11C2, C4⋊C8⋊19C22, C22⋊D8⋊22C2, C4⋊SD16⋊10C2, (C2×D8)⋊25C22, (C4×D4)⋊14C22, (C2×C8).65C23, (C4×Q8)⋊14C22, C8⋊C4⋊10C22, C22⋊SD16⋊11C2, C4⋊C4.156C23, (C2×C4).415C24, C23.695(C2×D4), (C22×C4).504D4, D4⋊C4⋊31C22, C4.126(C8⋊C22), C42.6C4⋊13C2, (C2×SD16)⋊23C22, (C2×D4).164C23, C4.4D4⋊61C22, C22⋊C8.50C22, (C2×Q8).152C23, C42.C2⋊38C22, C4⋊1D4.167C22, C4⋊D4.193C22, C22.32(C8⋊C22), (C2×C42).882C22, C22.675(C22×D4), C22⋊Q8.198C22, C42.29C22⋊1C2, (C22×C4).1086C23, (C22×D4).391C22, C23.36C23⋊11C2, C2.86(C22.29C24), (C2×C4⋊1D4)⋊21C2, (C2×C4).544(C2×D4), C2.58(C2×C8⋊C22), SmallGroup(128,1949)

Series: Derived ►Chief ►Lower central ►Upper central ►Jennings

C1 — C2×C4 — C42.275D4
C1 — C2 — C4 — C2×C4 — C22×C4 — C22×D4 — C2×C4⋊1D4 — C42.275D4
C1 — C2 — C2×C4 — C42.275D4
C1 — C22 — C2×C42 — C42.275D4
C1 — C2 — C2 — C2×C4 — C42.275D4

Generators and relations for C42.275D4
 G = < a,b,c,d | a4=b4=d2=1, c4=b2, ab=ba, cac-1=ab2, dad=a-1b2, cbc-1=a2b, dbd=a2b-1, dcd=b2c3 >

Subgroups: 628 in 245 conjugacy classes, 88 normal (34 characteristic)
C1, C2, C2, C4, C4, C22, C22, C22, C8, C2×C4, C2×C4, D4, Q8, C23, C23, C42, C42, C22⋊C4, C4⋊C4, C4⋊C4, C2×C8, D8, SD16, C22×C4, C22×C4, C2×D4, C2×D4, C2×D4, C2×Q8, C24, C8⋊C4, C22⋊C8, D4⋊C4, C4⋊C8, C2×C42, C42⋊C2, C4×D4, C4×D4, C4×Q8, C4⋊D4, C22⋊Q8, C22.D4, C4.4D4, C42.C2, C42⋊2C2, C4⋊1D4, C4⋊1D4, C2×D8, C2×SD16, C22×D4, C22×D4, C42.6C4, C22⋊D8, C22⋊SD16, C4⋊D8, C4⋊SD16, C42.29C22, C8⋊3D4, C23.36C23, C2×C4⋊1D4, C42.275D4
Quotients: C1, C2, C22, D4, C23, C2×D4, C24, C8⋊C22, C22×D4, 2+ 1+4, C22.29C24, C2×C8⋊C22, C42.275D4

Character table of C42.275D4

 class 12A2B2C2D2E2F2G2H2I2J4A4B4C4D4E4F4G4H4I4J4K8A8B8C8D
 size 11112288888222244448888888
ρ111111111111111111111111111    trivial
ρ21111-1-1-1-1-1111111-1-11-11-1111-1-1    linear of order 2
ρ31111-1-11-111-1-11-1111-1-11-1-1-111-1    linear of order 2
ρ4111111-11-11-1-11-11-1-1-1111-1-11-11    linear of order 2
ρ51111-1-111-1-11-11-1111-1-11-1-11-1-11    linear of order 2
ρ6111111-1-11-11-11-11-1-1-1111-11-11-1    linear of order 2
ρ71111111-1-1-1-111111111111-1-1-1-1    linear of order 2
ρ81111-1-1-111-1-11111-1-11-11-11-1-111    linear of order 2
ρ91111-1-1-1-111-1-11-1111-1-1-1111-1-11    linear of order 2
ρ1011111111-11-1-11-11-1-1-11-1-111-11-1    linear of order 2
ρ11111111-1111111111111-1-1-1-1-1-1-1    linear of order 2
ρ121111-1-11-1-1111111-1-11-1-11-1-1-111    linear of order 2
ρ13111111-1-1-1-1-111111111-1-1-11111    linear of order 2
ρ141111-1-1111-1-11111-1-11-1-11-111-1-1    linear of order 2
ρ151111-1-1-11-1-11-11-1111-1-1-111-111-1    linear of order 2
ρ161111111-11-11-11-11-1-1-11-1-11-11-11    linear of order 2
ρ172222-2-2000002-22-2-22-220000000    orthogonal lifted from D4
ρ182222-2-200000-2-2-2-22-2220000000    orthogonal lifted from D4
ρ19222222000002-22-22-2-2-20000000    orthogonal lifted from D4
ρ2022222200000-2-2-2-2-222-20000000    orthogonal lifted from D4
ρ2144-4-4000000040-4000000000000    orthogonal lifted from C8⋊C22
ρ224-44-400000000-40400000000000    orthogonal lifted from 2+ 1+4
ρ234-4-444-400000000000000000000    orthogonal lifted from C8⋊C22
ρ2444-4-40000000-404000000000000    orthogonal lifted from C8⋊C22
ρ254-44-40000000040-400000000000    orthogonal lifted from 2+ 1+4
ρ264-4-44-4400000000000000000000    orthogonal lifted from C8⋊C22

Smallest permutation representation of C42.275D4
►On 32 points
Generators in S32
(1 16 30 19)(2 13 31 24)(3 10 32 21)(4 15 25 18)(5 12 26 23)(6 9 27 20)(7 14 28 17)(8 11 29 22)
(1 7 5 3)(2 29 6 25)(4 31 8 27)(9 18 13 22)(10 16 14 12)(11 20 15 24)(17 23 21 19)(26 32 30 28)
(1 2 3 4 5 6 7 8)(9 10 11 12 13 14 15 16)(17 18 19 20 21 22 23 24)(25 26 27 28 29 30 31 32)
(1 11)(2 10)(3 9)(4 16)(5 15)(6 14)(7 13)(8 12)(17 27)(18 26)(19 25)(20 32)(21 31)(22 30)(23 29)(24 28)
 
G:=sub<Sym(32)| (1,16,30,19)(2,13,31,24)(3,10,32,21)(4,15,25,18)(5,12,26,23)(6,9,27,20)(7,14,28,17)(8,11,29,22), (1,7,5,3)(2,29,6,25)(4,31,8,27)(9,18,13,22)(10,16,14,12)(11,20,15,24)(17,23,21,19)(26,32,30,28), (1,2,3,4,5,6,7,8)(9,10,11,12,13,14,15,16)(17,18,19,20,21,22,23,24)(25,26,27,28,29,30,31,32), (1,11)(2,10)(3,9)(4,16)(5,15)(6,14)(7,13)(8,12)(17,27)(18,26)(19,25)(20,32)(21,31)(22,30)(23,29)(24,28)>;
 
G:=Group( (1,16,30,19)(2,13,31,24)(3,10,32,21)(4,15,25,18)(5,12,26,23)(6,9,27,20)(7,14,28,17)(8,11,29,22), (1,7,5,3)(2,29,6,25)(4,31,8,27)(9,18,13,22)(10,16,14,12)(11,20,15,24)(17,23,21,19)(26,32,30,28), (1,2,3,4,5,6,7,8)(9,10,11,12,13,14,15,16)(17,18,19,20,21,22,23,24)(25,26,27,28,29,30,31,32), (1,11)(2,10)(3,9)(4,16)(5,15)(6,14)(7,13)(8,12)(17,27)(18,26)(19,25)(20,32)(21,31)(22,30)(23,29)(24,28) );
 
G=PermutationGroup([[(1,16,30,19),(2,13,31,24),(3,10,32,21),(4,15,25,18),(5,12,26,23),(6,9,27,20),(7,14,28,17),(8,11,29,22)], [(1,7,5,3),(2,29,6,25),(4,31,8,27),(9,18,13,22),(10,16,14,12),(11,20,15,24),(17,23,21,19),(26,32,30,28)], [(1,2,3,4,5,6,7,8),(9,10,11,12,13,14,15,16),(17,18,19,20,21,22,23,24),(25,26,27,28,29,30,31,32)], [(1,11),(2,10),(3,9),(4,16),(5,15),(6,14),(7,13),(8,12),(17,27),(18,26),(19,25),(20,32),(21,31),(22,30),(23,29),(24,28)]])
 

Matrix representation of C42.275D4 ►in GL8(𝔽17)

016000000
10000000
000160000
00100000
000016100
000015100
000016919
0000201316
,
01000000
160000000
00010000
001600000
000016000
000001600
000016010
00000001
,
000160000
001600000
160000000
01000000
0000101516
000000016
000018168
00000100
,
00100000
00010000
10000000
01000000
000010150
00000001
000000160
00000100

G:=sub<GL(8,GF(17))| [0,1,0,0,0,0,0,0,16,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,16,0,0,0,0,0,0,0,0,0,16,15,16,2,0,0,0,0,1,1,9,0,0,0,0,0,0,0,1,13,0,0,0,0,0,0,9,16],[0,16,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,16,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,16,0,16,0,0,0,0,0,0,16,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1],[0,0,16,0,0,0,0,0,0,0,0,1,0,0,0,0,0,16,0,0,0,0,0,0,16,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,8,1,0,0,0,0,15,0,16,0,0,0,0,0,16,16,8,0],[0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,15,0,16,0,0,0,0,0,0,1,0,0] >;
 

C42.275D4 in GAP, Magma, Sage, TeX

C_4^2._{275}D_4
 
% in TeX
 
G:=Group("C4^2.275D4");
 
// GroupNames label
 
G:=SmallGroup(128,1949);
 
// by ID
 
G=gap.SmallGroup(128,1949);
 
# by ID
 
G:=PCGroup([7,-2,2,2,2,-2,2,-2,253,568,758,891,675,4037,1027,124]);
 
// Polycyclic
 
G:=Group<a,b,c,d|a^4=b^4=d^2=1,c^4=b^2,a*b=b*a,c*a*c^-1=a*b^2,d*a*d=a^-1*b^2,c*b*c^-1=a^2*b,d*b*d=a^2*b^-1,d*c*d=b^2*c^3>;
 
// generators/relations
 

Export

Character table of C42.275D4 in TeX

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