Copied to
clipboard

## G = Q8×C22×C4order 128 = 27

### Direct product of C22×C4 and Q8

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

Series: Derived Chief Lower central Upper central Jennings

 Derived series C1 — C2 — Q8×C22×C4
 Chief series C1 — C2 — C22 — C23 — C24 — C23×C4 — C22×C42 — Q8×C22×C4
 Lower central C1 — C2 — Q8×C22×C4
 Upper central C1 — C23×C4 — Q8×C22×C4
 Jennings C1 — C22 — Q8×C22×C4

Generators and relations for Q8×C22×C4
G = < a,b,c,d,e | a2=b2=c4=d4=1, e2=d2, ab=ba, ac=ca, ad=da, ae=ea, bc=cb, bd=db, be=eb, cd=dc, ce=ec, ede-1=d-1 >

Subgroups: 892 in 832 conjugacy classes, 772 normal (9 characteristic)
C1, C2 [×3], C2 [×12], C4 [×32], C4 [×12], C22, C22 [×34], C2×C4 [×124], C2×C4 [×36], Q8 [×64], C23 [×15], C42 [×48], C4⋊C4 [×48], C22×C4 [×74], C22×C4 [×12], C2×Q8 [×112], C24, C2×C42 [×36], C2×C4⋊C4 [×36], C4×Q8 [×64], C23×C4, C23×C4 [×6], C22×Q8 [×28], C22×C42 [×3], C22×C4⋊C4 [×3], C2×C4×Q8 [×24], Q8×C23, Q8×C22×C4
Quotients: C1, C2 [×31], C4 [×16], C22 [×155], C2×C4 [×120], Q8 [×8], C23 [×155], C22×C4 [×140], C2×Q8 [×28], C4○D4 [×4], C24 [×31], C4×Q8 [×16], C23×C4 [×30], C22×Q8 [×14], C2×C4○D4 [×6], C25, C2×C4×Q8 [×12], C24×C4, Q8×C23, C22×C4○D4, Q8×C22×C4

Smallest permutation representation of Q8×C22×C4
Regular action on 128 points
Generators in S128
(1 21)(2 22)(3 23)(4 24)(5 43)(6 44)(7 41)(8 42)(9 15)(10 16)(11 13)(12 14)(17 32)(18 29)(19 30)(20 31)(25 103)(26 104)(27 101)(28 102)(33 47)(34 48)(35 45)(36 46)(37 75)(38 76)(39 73)(40 74)(49 55)(50 56)(51 53)(52 54)(57 63)(58 64)(59 61)(60 62)(65 79)(66 80)(67 77)(68 78)(69 107)(70 108)(71 105)(72 106)(81 87)(82 88)(83 85)(84 86)(89 95)(90 96)(91 93)(92 94)(97 111)(98 112)(99 109)(100 110)(113 119)(114 120)(115 117)(116 118)(121 127)(122 128)(123 125)(124 126)
(1 43)(2 44)(3 41)(4 42)(5 21)(6 22)(7 23)(8 24)(9 29)(10 30)(11 31)(12 32)(13 20)(14 17)(15 18)(16 19)(25 125)(26 126)(27 127)(28 128)(33 56)(34 53)(35 54)(36 55)(37 57)(38 58)(39 59)(40 60)(45 52)(46 49)(47 50)(48 51)(61 73)(62 74)(63 75)(64 76)(65 88)(66 85)(67 86)(68 87)(69 89)(70 90)(71 91)(72 92)(77 84)(78 81)(79 82)(80 83)(93 105)(94 106)(95 107)(96 108)(97 120)(98 117)(99 118)(100 119)(101 121)(102 122)(103 123)(104 124)(109 116)(110 113)(111 114)(112 115)
(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)(33 34 35 36)(37 38 39 40)(41 42 43 44)(45 46 47 48)(49 50 51 52)(53 54 55 56)(57 58 59 60)(61 62 63 64)(65 66 67 68)(69 70 71 72)(73 74 75 76)(77 78 79 80)(81 82 83 84)(85 86 87 88)(89 90 91 92)(93 94 95 96)(97 98 99 100)(101 102 103 104)(105 106 107 108)(109 110 111 112)(113 114 115 116)(117 118 119 120)(121 122 123 124)(125 126 127 128)
(1 57 9 35)(2 58 10 36)(3 59 11 33)(4 60 12 34)(5 75 18 52)(6 76 19 49)(7 73 20 50)(8 74 17 51)(13 47 23 61)(14 48 24 62)(15 45 21 63)(16 46 22 64)(25 71 114 88)(26 72 115 85)(27 69 116 86)(28 70 113 87)(29 54 43 37)(30 55 44 38)(31 56 41 39)(32 53 42 40)(65 125 91 111)(66 126 92 112)(67 127 89 109)(68 128 90 110)(77 121 95 99)(78 122 96 100)(79 123 93 97)(80 124 94 98)(81 102 108 119)(82 103 105 120)(83 104 106 117)(84 101 107 118)
(1 72 9 85)(2 69 10 86)(3 70 11 87)(4 71 12 88)(5 94 18 80)(6 95 19 77)(7 96 20 78)(8 93 17 79)(13 81 23 108)(14 82 24 105)(15 83 21 106)(16 84 22 107)(25 34 114 60)(26 35 115 57)(27 36 116 58)(28 33 113 59)(29 66 43 92)(30 67 44 89)(31 68 41 90)(32 65 42 91)(37 126 54 112)(38 127 55 109)(39 128 56 110)(40 125 53 111)(45 117 63 104)(46 118 64 101)(47 119 61 102)(48 120 62 103)(49 99 76 121)(50 100 73 122)(51 97 74 123)(52 98 75 124)

G:=sub<Sym(128)| (1,21)(2,22)(3,23)(4,24)(5,43)(6,44)(7,41)(8,42)(9,15)(10,16)(11,13)(12,14)(17,32)(18,29)(19,30)(20,31)(25,103)(26,104)(27,101)(28,102)(33,47)(34,48)(35,45)(36,46)(37,75)(38,76)(39,73)(40,74)(49,55)(50,56)(51,53)(52,54)(57,63)(58,64)(59,61)(60,62)(65,79)(66,80)(67,77)(68,78)(69,107)(70,108)(71,105)(72,106)(81,87)(82,88)(83,85)(84,86)(89,95)(90,96)(91,93)(92,94)(97,111)(98,112)(99,109)(100,110)(113,119)(114,120)(115,117)(116,118)(121,127)(122,128)(123,125)(124,126), (1,43)(2,44)(3,41)(4,42)(5,21)(6,22)(7,23)(8,24)(9,29)(10,30)(11,31)(12,32)(13,20)(14,17)(15,18)(16,19)(25,125)(26,126)(27,127)(28,128)(33,56)(34,53)(35,54)(36,55)(37,57)(38,58)(39,59)(40,60)(45,52)(46,49)(47,50)(48,51)(61,73)(62,74)(63,75)(64,76)(65,88)(66,85)(67,86)(68,87)(69,89)(70,90)(71,91)(72,92)(77,84)(78,81)(79,82)(80,83)(93,105)(94,106)(95,107)(96,108)(97,120)(98,117)(99,118)(100,119)(101,121)(102,122)(103,123)(104,124)(109,116)(110,113)(111,114)(112,115), (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)(33,34,35,36)(37,38,39,40)(41,42,43,44)(45,46,47,48)(49,50,51,52)(53,54,55,56)(57,58,59,60)(61,62,63,64)(65,66,67,68)(69,70,71,72)(73,74,75,76)(77,78,79,80)(81,82,83,84)(85,86,87,88)(89,90,91,92)(93,94,95,96)(97,98,99,100)(101,102,103,104)(105,106,107,108)(109,110,111,112)(113,114,115,116)(117,118,119,120)(121,122,123,124)(125,126,127,128), (1,57,9,35)(2,58,10,36)(3,59,11,33)(4,60,12,34)(5,75,18,52)(6,76,19,49)(7,73,20,50)(8,74,17,51)(13,47,23,61)(14,48,24,62)(15,45,21,63)(16,46,22,64)(25,71,114,88)(26,72,115,85)(27,69,116,86)(28,70,113,87)(29,54,43,37)(30,55,44,38)(31,56,41,39)(32,53,42,40)(65,125,91,111)(66,126,92,112)(67,127,89,109)(68,128,90,110)(77,121,95,99)(78,122,96,100)(79,123,93,97)(80,124,94,98)(81,102,108,119)(82,103,105,120)(83,104,106,117)(84,101,107,118), (1,72,9,85)(2,69,10,86)(3,70,11,87)(4,71,12,88)(5,94,18,80)(6,95,19,77)(7,96,20,78)(8,93,17,79)(13,81,23,108)(14,82,24,105)(15,83,21,106)(16,84,22,107)(25,34,114,60)(26,35,115,57)(27,36,116,58)(28,33,113,59)(29,66,43,92)(30,67,44,89)(31,68,41,90)(32,65,42,91)(37,126,54,112)(38,127,55,109)(39,128,56,110)(40,125,53,111)(45,117,63,104)(46,118,64,101)(47,119,61,102)(48,120,62,103)(49,99,76,121)(50,100,73,122)(51,97,74,123)(52,98,75,124)>;

G:=Group( (1,21)(2,22)(3,23)(4,24)(5,43)(6,44)(7,41)(8,42)(9,15)(10,16)(11,13)(12,14)(17,32)(18,29)(19,30)(20,31)(25,103)(26,104)(27,101)(28,102)(33,47)(34,48)(35,45)(36,46)(37,75)(38,76)(39,73)(40,74)(49,55)(50,56)(51,53)(52,54)(57,63)(58,64)(59,61)(60,62)(65,79)(66,80)(67,77)(68,78)(69,107)(70,108)(71,105)(72,106)(81,87)(82,88)(83,85)(84,86)(89,95)(90,96)(91,93)(92,94)(97,111)(98,112)(99,109)(100,110)(113,119)(114,120)(115,117)(116,118)(121,127)(122,128)(123,125)(124,126), (1,43)(2,44)(3,41)(4,42)(5,21)(6,22)(7,23)(8,24)(9,29)(10,30)(11,31)(12,32)(13,20)(14,17)(15,18)(16,19)(25,125)(26,126)(27,127)(28,128)(33,56)(34,53)(35,54)(36,55)(37,57)(38,58)(39,59)(40,60)(45,52)(46,49)(47,50)(48,51)(61,73)(62,74)(63,75)(64,76)(65,88)(66,85)(67,86)(68,87)(69,89)(70,90)(71,91)(72,92)(77,84)(78,81)(79,82)(80,83)(93,105)(94,106)(95,107)(96,108)(97,120)(98,117)(99,118)(100,119)(101,121)(102,122)(103,123)(104,124)(109,116)(110,113)(111,114)(112,115), (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)(33,34,35,36)(37,38,39,40)(41,42,43,44)(45,46,47,48)(49,50,51,52)(53,54,55,56)(57,58,59,60)(61,62,63,64)(65,66,67,68)(69,70,71,72)(73,74,75,76)(77,78,79,80)(81,82,83,84)(85,86,87,88)(89,90,91,92)(93,94,95,96)(97,98,99,100)(101,102,103,104)(105,106,107,108)(109,110,111,112)(113,114,115,116)(117,118,119,120)(121,122,123,124)(125,126,127,128), (1,57,9,35)(2,58,10,36)(3,59,11,33)(4,60,12,34)(5,75,18,52)(6,76,19,49)(7,73,20,50)(8,74,17,51)(13,47,23,61)(14,48,24,62)(15,45,21,63)(16,46,22,64)(25,71,114,88)(26,72,115,85)(27,69,116,86)(28,70,113,87)(29,54,43,37)(30,55,44,38)(31,56,41,39)(32,53,42,40)(65,125,91,111)(66,126,92,112)(67,127,89,109)(68,128,90,110)(77,121,95,99)(78,122,96,100)(79,123,93,97)(80,124,94,98)(81,102,108,119)(82,103,105,120)(83,104,106,117)(84,101,107,118), (1,72,9,85)(2,69,10,86)(3,70,11,87)(4,71,12,88)(5,94,18,80)(6,95,19,77)(7,96,20,78)(8,93,17,79)(13,81,23,108)(14,82,24,105)(15,83,21,106)(16,84,22,107)(25,34,114,60)(26,35,115,57)(27,36,116,58)(28,33,113,59)(29,66,43,92)(30,67,44,89)(31,68,41,90)(32,65,42,91)(37,126,54,112)(38,127,55,109)(39,128,56,110)(40,125,53,111)(45,117,63,104)(46,118,64,101)(47,119,61,102)(48,120,62,103)(49,99,76,121)(50,100,73,122)(51,97,74,123)(52,98,75,124) );

G=PermutationGroup([(1,21),(2,22),(3,23),(4,24),(5,43),(6,44),(7,41),(8,42),(9,15),(10,16),(11,13),(12,14),(17,32),(18,29),(19,30),(20,31),(25,103),(26,104),(27,101),(28,102),(33,47),(34,48),(35,45),(36,46),(37,75),(38,76),(39,73),(40,74),(49,55),(50,56),(51,53),(52,54),(57,63),(58,64),(59,61),(60,62),(65,79),(66,80),(67,77),(68,78),(69,107),(70,108),(71,105),(72,106),(81,87),(82,88),(83,85),(84,86),(89,95),(90,96),(91,93),(92,94),(97,111),(98,112),(99,109),(100,110),(113,119),(114,120),(115,117),(116,118),(121,127),(122,128),(123,125),(124,126)], [(1,43),(2,44),(3,41),(4,42),(5,21),(6,22),(7,23),(8,24),(9,29),(10,30),(11,31),(12,32),(13,20),(14,17),(15,18),(16,19),(25,125),(26,126),(27,127),(28,128),(33,56),(34,53),(35,54),(36,55),(37,57),(38,58),(39,59),(40,60),(45,52),(46,49),(47,50),(48,51),(61,73),(62,74),(63,75),(64,76),(65,88),(66,85),(67,86),(68,87),(69,89),(70,90),(71,91),(72,92),(77,84),(78,81),(79,82),(80,83),(93,105),(94,106),(95,107),(96,108),(97,120),(98,117),(99,118),(100,119),(101,121),(102,122),(103,123),(104,124),(109,116),(110,113),(111,114),(112,115)], [(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),(33,34,35,36),(37,38,39,40),(41,42,43,44),(45,46,47,48),(49,50,51,52),(53,54,55,56),(57,58,59,60),(61,62,63,64),(65,66,67,68),(69,70,71,72),(73,74,75,76),(77,78,79,80),(81,82,83,84),(85,86,87,88),(89,90,91,92),(93,94,95,96),(97,98,99,100),(101,102,103,104),(105,106,107,108),(109,110,111,112),(113,114,115,116),(117,118,119,120),(121,122,123,124),(125,126,127,128)], [(1,57,9,35),(2,58,10,36),(3,59,11,33),(4,60,12,34),(5,75,18,52),(6,76,19,49),(7,73,20,50),(8,74,17,51),(13,47,23,61),(14,48,24,62),(15,45,21,63),(16,46,22,64),(25,71,114,88),(26,72,115,85),(27,69,116,86),(28,70,113,87),(29,54,43,37),(30,55,44,38),(31,56,41,39),(32,53,42,40),(65,125,91,111),(66,126,92,112),(67,127,89,109),(68,128,90,110),(77,121,95,99),(78,122,96,100),(79,123,93,97),(80,124,94,98),(81,102,108,119),(82,103,105,120),(83,104,106,117),(84,101,107,118)], [(1,72,9,85),(2,69,10,86),(3,70,11,87),(4,71,12,88),(5,94,18,80),(6,95,19,77),(7,96,20,78),(8,93,17,79),(13,81,23,108),(14,82,24,105),(15,83,21,106),(16,84,22,107),(25,34,114,60),(26,35,115,57),(27,36,116,58),(28,33,113,59),(29,66,43,92),(30,67,44,89),(31,68,41,90),(32,65,42,91),(37,126,54,112),(38,127,55,109),(39,128,56,110),(40,125,53,111),(45,117,63,104),(46,118,64,101),(47,119,61,102),(48,120,62,103),(49,99,76,121),(50,100,73,122),(51,97,74,123),(52,98,75,124)])

80 conjugacy classes

 class 1 2A ··· 2O 4A ··· 4P 4Q ··· 4BL order 1 2 ··· 2 4 ··· 4 4 ··· 4 size 1 1 ··· 1 1 ··· 1 2 ··· 2

80 irreducible representations

 dim 1 1 1 1 1 1 2 2 type + + + + + - image C1 C2 C2 C2 C2 C4 Q8 C4○D4 kernel Q8×C22×C4 C22×C42 C22×C4⋊C4 C2×C4×Q8 Q8×C23 C22×Q8 C22×C4 C23 # reps 1 3 3 24 1 32 8 8

Matrix representation of Q8×C22×C4 in GL5(𝔽5)

 1 0 0 0 0 0 4 0 0 0 0 0 4 0 0 0 0 0 1 0 0 0 0 0 1
,
 1 0 0 0 0 0 1 0 0 0 0 0 4 0 0 0 0 0 4 0 0 0 0 0 4
,
 2 0 0 0 0 0 4 0 0 0 0 0 1 0 0 0 0 0 2 0 0 0 0 0 2
,
 4 0 0 0 0 0 1 0 0 0 0 0 4 0 0 0 0 0 3 0 0 0 0 1 2
,
 4 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 4 0 0 0 2 4

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

Q8×C22×C4 in GAP, Magma, Sage, TeX

Q_8\times C_2^2\times C_4
% in TeX

G:=Group("Q8xC2^2xC4");
// GroupNames label

G:=SmallGroup(128,2155);
// by ID

G=gap.SmallGroup(128,2155);
# by ID

G:=PCGroup([7,-2,2,2,2,2,-2,2,448,477,232,520]);
// Polycyclic

G:=Group<a,b,c,d,e|a^2=b^2=c^4=d^4=1,e^2=d^2,a*b=b*a,a*c=c*a,a*d=d*a,a*e=e*a,b*c=c*b,b*d=d*b,b*e=e*b,c*d=d*c,c*e=e*c,e*d*e^-1=d^-1>;
// generators/relations

׿
×
𝔽