Finite Group Databasebeta

D10197 #35205168

order20394
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C1

Aliases

dihedralD10197
unambiguous semidirect productC9⋊D1133
unambiguous semidirect productC11⋊D927
unambiguous semidirect productC103⋊D99

Splittings

Fitting, derived, HallC9×C11×C103 ⋊ C2
HallC11×C103 ⋊ D9
HallC9×C103 ⋊ D11
SylowC103 ⋊ D99
HallC9×C11 ⋊ D103
SylowC11 ⋊ D927
SylowC9 ⋊ D1133

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, Fitting, cosocle, hypocenterC9×C11×C103C2
FrattiniC3D3399
socleC3×C11×C103D3
LCSG ▷ C9×C11×C103
UCSC1

24 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 123
transitive degreeμt(G) = 10197

A minimal faithful permutation representation — 2 generators on 123 points:

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

Polycyclic presentation:

2,3,11,103,3|b^3=e^2,b^a=b^2e,c^a=c^10,d^a=d^102,e^a=e^2

Conjugacy classes & character table

5100 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD30591
maximal quotient ofD30591

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20394, 9);