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G = D5.2- 1+4order 320 = 26·5

The non-split extension by D5 of 2- 1+4 acting via 2- 1+4/C2×Q8=C2

metabelian, supersoluble, monomial, 2-hyperelementary

Aliases: D10.17C24, D5.12- 1+4, (Q8×F5)⋊3C2, (C2×Q8)⋊9F5, (Q8×D5)⋊11C4, (Q8×C10)⋊10C4, Q8.13(C2×F5), C4⋊F5.12C22, (C4×F5).7C22, (C2×F5).6C23, C4.31(C22×F5), C2.15(C23×F5), (C2×Dic10)⋊14C4, C20.31(C22×C4), C10.14(C23×C4), (C4×D5).54C23, (Q8×D5).15C22, C22⋊F5.7C22, Dic10.13(C2×C4), D10.49(C22×C4), C5⋊(C23.32C23), Dic5.5(C22×C4), C22.23(C22×F5), (C22×D5).286C23, D10.C23.6C2, (C2×Q8×D5).14C2, (C2×C4).47(C2×F5), (C2×C20).75(C2×C4), (C4×D5).36(C2×C4), (C5×Q8).13(C2×C4), (C2×C4×D5).221C22, (C2×Dic5).83(C2×C4), (C2×C10).104(C22×C4), SmallGroup(320,1600)

Series: Derived Chief Lower central Upper central

C1C10 — D5.2- 1+4
C1C5D5D10C2×F5C4×F5Q8×F5 — D5.2- 1+4
C5C10 — D5.2- 1+4
C1C2C2×Q8

Generators and relations for D5.2- 1+4
 G = < a,b,c,d,e,f | a5=b2=c4=1, d2=a-1b, e2=a-1bc2, f2=c2, bab=cac-1=a-1, dad-1=eae-1=a3, af=fa, cbc-1=a3b, dbd-1=ebe-1=a2b, bf=fb, dcd-1=c-1, ce=ec, cf=fc, de=ed, df=fd, fef-1=c2e >

Subgroups: 794 in 266 conjugacy classes, 138 normal (13 characteristic)
C1, C2, C2 [×4], C4 [×6], C4 [×14], C22, C22 [×4], C5, C2×C4 [×3], C2×C4 [×23], Q8 [×4], Q8 [×12], C23, D5 [×2], D5, C10, C10, C42 [×12], C22⋊C4 [×4], C4⋊C4 [×12], C22×C4 [×3], C2×Q8, C2×Q8 [×11], Dic5 [×6], C20 [×6], F5 [×8], D10 [×2], D10 [×2], C2×C10, C42⋊C2 [×6], C4×Q8 [×8], C22×Q8, Dic10 [×12], C4×D5 [×12], C2×Dic5 [×3], C2×C20 [×3], C5×Q8 [×4], C2×F5 [×8], C22×D5, C23.32C23, C4×F5 [×12], C4⋊F5 [×12], C22⋊F5 [×4], C2×Dic10 [×3], C2×C4×D5 [×3], Q8×D5 [×8], Q8×C10, D10.C23 [×6], Q8×F5 [×8], C2×Q8×D5, D5.2- 1+4
Quotients: C1, C2 [×15], C4 [×8], C22 [×35], C2×C4 [×28], C23 [×15], C22×C4 [×14], C24, F5, C23×C4, 2- 1+4 [×2], C2×F5 [×7], C23.32C23, C22×F5 [×7], C23×F5, D5.2- 1+4

Smallest permutation representation of D5.2- 1+4
On 80 points
Generators in S80
(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)
(1 5)(2 4)(7 10)(8 9)(12 15)(13 14)(17 20)(18 19)(22 25)(23 24)(27 30)(28 29)(32 35)(33 34)(37 40)(38 39)(42 45)(43 44)(47 50)(48 49)(52 55)(53 54)(57 60)(58 59)(62 65)(63 64)(67 70)(68 69)(72 75)(73 74)(77 80)(78 79)
(1 59 9 54)(2 58 10 53)(3 57 6 52)(4 56 7 51)(5 60 8 55)(11 47 16 42)(12 46 17 41)(13 50 18 45)(14 49 19 44)(15 48 20 43)(21 77 26 72)(22 76 27 71)(23 80 28 75)(24 79 29 74)(25 78 30 73)(31 67 36 62)(32 66 37 61)(33 70 38 65)(34 69 39 64)(35 68 40 63)
(1 54)(2 51 5 52)(3 53 4 55)(6 58 7 60)(8 57 10 56)(9 59)(11 48 12 50)(13 47 15 46)(14 49)(16 43 17 45)(18 42 20 41)(19 44)(21 73 22 75)(23 72 25 71)(24 74)(26 78 27 80)(28 77 30 76)(29 79)(31 68 32 70)(33 67 35 66)(34 69)(36 63 37 65)(38 62 40 61)(39 64)
(1 24 9 29)(2 21 8 27)(3 23 7 30)(4 25 6 28)(5 22 10 26)(11 38 17 35)(12 40 16 33)(13 37 20 31)(14 39 19 34)(15 36 18 32)(41 68 47 65)(42 70 46 63)(43 67 50 61)(44 69 49 64)(45 66 48 62)(51 73 57 80)(52 75 56 78)(53 72 60 76)(54 74 59 79)(55 71 58 77)
(1 49 9 44)(2 50 10 45)(3 46 6 41)(4 47 7 42)(5 48 8 43)(11 56 16 51)(12 57 17 52)(13 58 18 53)(14 59 19 54)(15 60 20 55)(21 66 26 61)(22 67 27 62)(23 68 28 63)(24 69 29 64)(25 70 30 65)(31 76 36 71)(32 77 37 72)(33 78 38 73)(34 79 39 74)(35 80 40 75)

G:=sub<Sym(80)| (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), (1,5)(2,4)(7,10)(8,9)(12,15)(13,14)(17,20)(18,19)(22,25)(23,24)(27,30)(28,29)(32,35)(33,34)(37,40)(38,39)(42,45)(43,44)(47,50)(48,49)(52,55)(53,54)(57,60)(58,59)(62,65)(63,64)(67,70)(68,69)(72,75)(73,74)(77,80)(78,79), (1,59,9,54)(2,58,10,53)(3,57,6,52)(4,56,7,51)(5,60,8,55)(11,47,16,42)(12,46,17,41)(13,50,18,45)(14,49,19,44)(15,48,20,43)(21,77,26,72)(22,76,27,71)(23,80,28,75)(24,79,29,74)(25,78,30,73)(31,67,36,62)(32,66,37,61)(33,70,38,65)(34,69,39,64)(35,68,40,63), (1,54)(2,51,5,52)(3,53,4,55)(6,58,7,60)(8,57,10,56)(9,59)(11,48,12,50)(13,47,15,46)(14,49)(16,43,17,45)(18,42,20,41)(19,44)(21,73,22,75)(23,72,25,71)(24,74)(26,78,27,80)(28,77,30,76)(29,79)(31,68,32,70)(33,67,35,66)(34,69)(36,63,37,65)(38,62,40,61)(39,64), (1,24,9,29)(2,21,8,27)(3,23,7,30)(4,25,6,28)(5,22,10,26)(11,38,17,35)(12,40,16,33)(13,37,20,31)(14,39,19,34)(15,36,18,32)(41,68,47,65)(42,70,46,63)(43,67,50,61)(44,69,49,64)(45,66,48,62)(51,73,57,80)(52,75,56,78)(53,72,60,76)(54,74,59,79)(55,71,58,77), (1,49,9,44)(2,50,10,45)(3,46,6,41)(4,47,7,42)(5,48,8,43)(11,56,16,51)(12,57,17,52)(13,58,18,53)(14,59,19,54)(15,60,20,55)(21,66,26,61)(22,67,27,62)(23,68,28,63)(24,69,29,64)(25,70,30,65)(31,76,36,71)(32,77,37,72)(33,78,38,73)(34,79,39,74)(35,80,40,75)>;

G:=Group( (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), (1,5)(2,4)(7,10)(8,9)(12,15)(13,14)(17,20)(18,19)(22,25)(23,24)(27,30)(28,29)(32,35)(33,34)(37,40)(38,39)(42,45)(43,44)(47,50)(48,49)(52,55)(53,54)(57,60)(58,59)(62,65)(63,64)(67,70)(68,69)(72,75)(73,74)(77,80)(78,79), (1,59,9,54)(2,58,10,53)(3,57,6,52)(4,56,7,51)(5,60,8,55)(11,47,16,42)(12,46,17,41)(13,50,18,45)(14,49,19,44)(15,48,20,43)(21,77,26,72)(22,76,27,71)(23,80,28,75)(24,79,29,74)(25,78,30,73)(31,67,36,62)(32,66,37,61)(33,70,38,65)(34,69,39,64)(35,68,40,63), (1,54)(2,51,5,52)(3,53,4,55)(6,58,7,60)(8,57,10,56)(9,59)(11,48,12,50)(13,47,15,46)(14,49)(16,43,17,45)(18,42,20,41)(19,44)(21,73,22,75)(23,72,25,71)(24,74)(26,78,27,80)(28,77,30,76)(29,79)(31,68,32,70)(33,67,35,66)(34,69)(36,63,37,65)(38,62,40,61)(39,64), (1,24,9,29)(2,21,8,27)(3,23,7,30)(4,25,6,28)(5,22,10,26)(11,38,17,35)(12,40,16,33)(13,37,20,31)(14,39,19,34)(15,36,18,32)(41,68,47,65)(42,70,46,63)(43,67,50,61)(44,69,49,64)(45,66,48,62)(51,73,57,80)(52,75,56,78)(53,72,60,76)(54,74,59,79)(55,71,58,77), (1,49,9,44)(2,50,10,45)(3,46,6,41)(4,47,7,42)(5,48,8,43)(11,56,16,51)(12,57,17,52)(13,58,18,53)(14,59,19,54)(15,60,20,55)(21,66,26,61)(22,67,27,62)(23,68,28,63)(24,69,29,64)(25,70,30,65)(31,76,36,71)(32,77,37,72)(33,78,38,73)(34,79,39,74)(35,80,40,75) );

G=PermutationGroup([(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)], [(1,5),(2,4),(7,10),(8,9),(12,15),(13,14),(17,20),(18,19),(22,25),(23,24),(27,30),(28,29),(32,35),(33,34),(37,40),(38,39),(42,45),(43,44),(47,50),(48,49),(52,55),(53,54),(57,60),(58,59),(62,65),(63,64),(67,70),(68,69),(72,75),(73,74),(77,80),(78,79)], [(1,59,9,54),(2,58,10,53),(3,57,6,52),(4,56,7,51),(5,60,8,55),(11,47,16,42),(12,46,17,41),(13,50,18,45),(14,49,19,44),(15,48,20,43),(21,77,26,72),(22,76,27,71),(23,80,28,75),(24,79,29,74),(25,78,30,73),(31,67,36,62),(32,66,37,61),(33,70,38,65),(34,69,39,64),(35,68,40,63)], [(1,54),(2,51,5,52),(3,53,4,55),(6,58,7,60),(8,57,10,56),(9,59),(11,48,12,50),(13,47,15,46),(14,49),(16,43,17,45),(18,42,20,41),(19,44),(21,73,22,75),(23,72,25,71),(24,74),(26,78,27,80),(28,77,30,76),(29,79),(31,68,32,70),(33,67,35,66),(34,69),(36,63,37,65),(38,62,40,61),(39,64)], [(1,24,9,29),(2,21,8,27),(3,23,7,30),(4,25,6,28),(5,22,10,26),(11,38,17,35),(12,40,16,33),(13,37,20,31),(14,39,19,34),(15,36,18,32),(41,68,47,65),(42,70,46,63),(43,67,50,61),(44,69,49,64),(45,66,48,62),(51,73,57,80),(52,75,56,78),(53,72,60,76),(54,74,59,79),(55,71,58,77)], [(1,49,9,44),(2,50,10,45),(3,46,6,41),(4,47,7,42),(5,48,8,43),(11,56,16,51),(12,57,17,52),(13,58,18,53),(14,59,19,54),(15,60,20,55),(21,66,26,61),(22,67,27,62),(23,68,28,63),(24,69,29,64),(25,70,30,65),(31,76,36,71),(32,77,37,72),(33,78,38,73),(34,79,39,74),(35,80,40,75)])

44 conjugacy classes

class 1 2A2B2C2D2E4A···4F4G···4AB 5 10A10B10C20A···20F
order1222224···44···4510101020···20
size11255102···210···1044448···8

44 irreducible representations

dim111111144448
type+++++-++-
imageC1C2C2C2C4C4C4F52- 1+4C2×F5C2×F5D5.2- 1+4
kernelD5.2- 1+4D10.C23Q8×F5C2×Q8×D5C2×Dic10Q8×D5Q8×C10C2×Q8D5C2×C4Q8C1
# reps168168212342

Matrix representation of D5.2- 1+4 in GL8(𝔽41)

10000000
01000000
00100000
00010000
00000100
00000010
00000001
000040404040
,
400000000
040000000
004000000
000400000
00000100
00001000
000040404040
00000001
,
13365100000
321327150000
380120000
211327140000
00001000
000040404040
00000001
00000010
,
6437330000
19626290000
27032230000
16635380000
00001000
00000001
00000100
000040404040
,
400000000
381000000
160100000
11140400000
00001000
00000001
00000100
000040404040
,
400500000
0127390000
160100000
11127400000
00001000
00000100
00000010
00000001

G:=sub<GL(8,GF(41))| [1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,40,0,0,0,0,1,0,0,40,0,0,0,0,0,1,0,40,0,0,0,0,0,0,1,40],[40,0,0,0,0,0,0,0,0,40,0,0,0,0,0,0,0,0,40,0,0,0,0,0,0,0,0,40,0,0,0,0,0,0,0,0,0,1,40,0,0,0,0,0,1,0,40,0,0,0,0,0,0,0,40,0,0,0,0,0,0,0,40,1],[13,32,38,21,0,0,0,0,36,13,0,13,0,0,0,0,5,27,1,27,0,0,0,0,10,15,2,14,0,0,0,0,0,0,0,0,1,40,0,0,0,0,0,0,0,40,0,0,0,0,0,0,0,40,0,1,0,0,0,0,0,40,1,0],[6,19,27,16,0,0,0,0,4,6,0,6,0,0,0,0,37,26,32,35,0,0,0,0,33,29,23,38,0,0,0,0,0,0,0,0,1,0,0,40,0,0,0,0,0,0,1,40,0,0,0,0,0,0,0,40,0,0,0,0,0,1,0,40],[40,38,16,11,0,0,0,0,0,1,0,1,0,0,0,0,0,0,1,40,0,0,0,0,0,0,0,40,0,0,0,0,0,0,0,0,1,0,0,40,0,0,0,0,0,0,1,40,0,0,0,0,0,0,0,40,0,0,0,0,0,1,0,40],[40,0,16,11,0,0,0,0,0,1,0,1,0,0,0,0,5,27,1,27,0,0,0,0,0,39,0,40,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1] >;

D5.2- 1+4 in GAP, Magma, Sage, TeX

D_5.2_-^{1+4}
% in TeX

G:=Group("D5.ES-(2,2)");
// GroupNames label

G:=SmallGroup(320,1600);
// by ID

G=gap.SmallGroup(320,1600);
# by ID

G:=PCGroup([7,-2,-2,-2,-2,-2,-2,-5,112,232,387,184,1123,6278,818]);
// Polycyclic

G:=Group<a,b,c,d,e,f|a^5=b^2=c^4=1,d^2=a^-1*b,e^2=a^-1*b*c^2,f^2=c^2,b*a*b=c*a*c^-1=a^-1,d*a*d^-1=e*a*e^-1=a^3,a*f=f*a,c*b*c^-1=a^3*b,d*b*d^-1=e*b*e^-1=a^2*b,b*f=f*b,d*c*d^-1=c^-1,c*e=e*c,c*f=f*c,d*e=e*d,d*f=f*d,f*e*f^-1=c^2*e>;
// generators/relations

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