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G = C2xD4:5D4  order 128 = 27

Direct product of C2 and D4:5D4

direct product, p-group, metabelian, nilpotent (class 2), monomial

Aliases: C2xD4:5D4, C42:13C23, C22.52C25, C25.76C22, C23.123C24, C24.490C23, C22.1092+ 1+4, (C2xD4):55D4, D4:10(C2xD4), C4:C4:7C23, (D4xC23):15C2, (C2xD4):18C23, C23:8(C4oD4), (C2xC4).54C24, (C2xQ8):17C23, C2.19(D4xC23), (C4xD4):101C22, C4:D4:69C22, C22:C4:19C23, (C2xC42):51C22, (C23xC4):35C22, (C22xC4):17C23, C4.108(C22xD4), C23.483(C2xD4), C22:Q8:82C22, C22wrC2:31C22, C22.6(C22xD4), C4.4D4:70C22, (C22xD4):62C22, (C22xQ8):61C22, C2.16(C2x2+ 1+4), C22.D4:40C22, (C2xC4xD4):79C2, D4o2(C2xC22:C4), C22:C4o3(C2xD4), C22:2(C2xC4oD4), (C2xC4:D4):59C2, (C2xC4:C4):66C22, (C2xC22:Q8):67C2, (C2xC22wrC2):24C2, (C2xC4.4D4):49C2, (C2xC4).1108(C2xD4), (C22xC4oD4):16C2, (C2xC4oD4):70C22, C2.25(C22xC4oD4), (C2xC22:C4):42C22, (C22xC22:C4):32C2, (C2xC22.D4):54C2, (C2xD4)o3(C2xC22:C4), (C2xC22:C4)o(C22xD4), SmallGroup(128,2195)

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

Derived series
C1 — C22 — C2xD4:5D4
Chief series
C1 — C2 — C22 — C23 — C24 — C25 — D4xC23 — C2xD4:5D4
Lower central
C1 — C22 — C2xD4:5D4
Upper central
C1 — C23 — C2xD4:5D4
Jennings
C1 — C22 — C2xD4:5D4

Generators and relations for C2xD4:5D4
 G = < a,b,c,d,e | a2=b4=c2=d4=e2=1, ab=ba, ac=ca, ad=da, ae=ea, cbc=b-1, bd=db, be=eb, dcd-1=ece=b2c, ede=d-1 >

Subgroups: 1692 in 950 conjugacy classes, 444 normal (32 characteristic)
C1, C2, C2, C2, C4, C4, C22, C22, C22, C2xC4, C2xC4, D4, D4, Q8, C23, C23, C23, C42, C22:C4, C4:C4, C22xC4, C22xC4, C22xC4, C2xD4, C2xD4, C2xQ8, C2xQ8, C4oD4, C24, C24, C24, C2xC42, C2xC22:C4, C2xC22:C4, C2xC4:C4, C2xC4:C4, C4xD4, C22wrC2, C4:D4, C22:Q8, C22.D4, C4.4D4, C23xC4, C23xC4, C22xD4, C22xD4, C22xD4, C22xQ8, C2xC4oD4, C2xC4oD4, C25, C22xC22:C4, C2xC4xD4, C2xC22wrC2, C2xC4:D4, C2xC4:D4, C2xC22:Q8, C2xC22.D4, C2xC4.4D4, D4:5D4, D4xC23, C22xC4oD4, C2xD4:5D4
Quotients: C1, C2, C22, D4, C23, C2xD4, C4oD4, C24, C22xD4, C2xC4oD4, 2+ 1+4, C25, D4:5D4, D4xC23, C22xC4oD4, C2x2+ 1+4, C2xD4:5D4

Smallest permutation representation of C2xD4:5D4
►On 32 points
Generators in S32
(1 7)(2 8)(3 5)(4 6)(9 24)(10 21)(11 22)(12 23)(13 17)(14 18)(15 19)(16 20)(25 30)(26 31)(27 32)(28 29)

(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 23)(2 22)(3 21)(4 24)(5 10)(6 9)(7 12)(8 11)(13 25)(14 28)(15 27)(16 26)(17 30)(18 29)(19 32)(20 31)

(1 30 24 20)(2 31 21 17)(3 32 22 18)(4 29 23 19)(5 27 11 14)(6 28 12 15)(7 25 9 16)(8 26 10 13)

(1 20)(2 17)(3 18)(4 19)(5 14)(6 15)(7 16)(8 13)(9 25)(10 26)(11 27)(12 28)(21 31)(22 32)(23 29)(24 30)
 
G:=sub<Sym(32)| (1,7)(2,8)(3,5)(4,6)(9,24)(10,21)(11,22)(12,23)(13,17)(14,18)(15,19)(16,20)(25,30)(26,31)(27,32)(28,29), (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), (1,23)(2,22)(3,21)(4,24)(5,10)(6,9)(7,12)(8,11)(13,25)(14,28)(15,27)(16,26)(17,30)(18,29)(19,32)(20,31), (1,30,24,20)(2,31,21,17)(3,32,22,18)(4,29,23,19)(5,27,11,14)(6,28,12,15)(7,25,9,16)(8,26,10,13), (1,20)(2,17)(3,18)(4,19)(5,14)(6,15)(7,16)(8,13)(9,25)(10,26)(11,27)(12,28)(21,31)(22,32)(23,29)(24,30)>;
 
G:=Group( (1,7)(2,8)(3,5)(4,6)(9,24)(10,21)(11,22)(12,23)(13,17)(14,18)(15,19)(16,20)(25,30)(26,31)(27,32)(28,29), (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), (1,23)(2,22)(3,21)(4,24)(5,10)(6,9)(7,12)(8,11)(13,25)(14,28)(15,27)(16,26)(17,30)(18,29)(19,32)(20,31), (1,30,24,20)(2,31,21,17)(3,32,22,18)(4,29,23,19)(5,27,11,14)(6,28,12,15)(7,25,9,16)(8,26,10,13), (1,20)(2,17)(3,18)(4,19)(5,14)(6,15)(7,16)(8,13)(9,25)(10,26)(11,27)(12,28)(21,31)(22,32)(23,29)(24,30) );
 
G=PermutationGroup([[(1,7),(2,8),(3,5),(4,6),(9,24),(10,21),(11,22),(12,23),(13,17),(14,18),(15,19),(16,20),(25,30),(26,31),(27,32),(28,29)], [(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)], [(1,23),(2,22),(3,21),(4,24),(5,10),(6,9),(7,12),(8,11),(13,25),(14,28),(15,27),(16,26),(17,30),(18,29),(19,32),(20,31)], [(1,30,24,20),(2,31,21,17),(3,32,22,18),(4,29,23,19),(5,27,11,14),(6,28,12,15),(7,25,9,16),(8,26,10,13)], [(1,20),(2,17),(3,18),(4,19),(5,14),(6,15),(7,16),(8,13),(9,25),(10,26),(11,27),(12,28),(21,31),(22,32),(23,29),(24,30)]])
 

50 conjugacy classes

class 1 2A···2G2H···2S2T···2Y4A···4L4M···4X
order12···22···22···24···44···4
size11···12···24···42···24···4

50 irreducible representations

dim11111111111224
type+++++++++++++
imageC1C2C2C2C2C2C2C2C2C2C2D4C4oD42+ 1+4
kernelC2xD4:5D4C22xC22:C4C2xC4xD4C2xC22wrC2C2xC4:D4C2xC22:Q8C2xC22.D4C2xC4.4D4D4:5D4D4xC23C22xC4oD4C2xD4C23C22
# reps122231211611882

Matrix representation of C2xD4:5D4 ►in GL6(F5)

100000
010000
004000
000400
000010
000001
,
100000
010000
004000
000400
000042
000041
,
400000
040000
001000
000100
000042
000001
,
010000
400000
000100
004000
000021
000023
,
010000
100000
000100
001000
000021
000023

G:=sub<GL(6,GF(5))| [1,0,0,0,0,0,0,1,0,0,0,0,0,0,4,0,0,0,0,0,0,4,0,0,0,0,0,0,1,0,0,0,0,0,0,1],[1,0,0,0,0,0,0,1,0,0,0,0,0,0,4,0,0,0,0,0,0,4,0,0,0,0,0,0,4,4,0,0,0,0,2,1],[4,0,0,0,0,0,0,4,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,4,0,0,0,0,0,2,1],[0,4,0,0,0,0,1,0,0,0,0,0,0,0,0,4,0,0,0,0,1,0,0,0,0,0,0,0,2,2,0,0,0,0,1,3],[0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,2,2,0,0,0,0,1,3] >;
 

C2xD4:5D4 in GAP, Magma, Sage, TeX 

C_2\times D_4\rtimes_5D_4
 
% in TeX
 
G:=Group("C2xD4:5D4");
 
// GroupNames label
 
G:=SmallGroup(128,2195);
 
// by ID
 
G=gap.SmallGroup(128,2195);
 
# by ID
 
G:=PCGroup([7,-2,2,2,2,2,-2,2,224,477,1430,570]);
 
// Polycyclic
 
G:=Group<a,b,c,d,e|a^2=b^4=c^2=d^4=e^2=1,a*b=b*a,a*c=c*a,a*d=d*a,a*e=e*a,c*b*c=b^-1,b*d=d*b,b*e=e*b,d*c*d^-1=e*c*e=b^2*c,e*d*e=d^-1>;
 
// generators/relations
 

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