Finite Group Databasebeta

Dic495 #14520386

order1980
isoclinismisoclinic class of D495
automorphismAut(G) order 237600
homologyAbelianization (H1) = C4 · Schur multiplier (H2) = C1

Aliases

dicyclicDic495
unambiguous semidirect productC9⋊Dic55
unambiguous semidirect productC11⋊Dic45

Splittings

derived, HallC5×C9×C11 ⋊ C4
HallC9×C11 ⋊ Dic5
HallC5×C11 ⋊ Dic9
HallC5×C9 ⋊ Dic11
SylowC11 ⋊ Dic45
SylowC9 ⋊ Dic55
SylowC5 ⋊ Dic99

Subgroups

subgroupG/H
center, hypercenterC2D495
commutator, hypocenterC5×C9×C11C4
FrattiniC2×C3D165
Fitting, cosocleC2×C5×C9×C11C2
socle, prime radicalC2×C3×C5×C11D3
LCSG ▷ C5×C9×C11
UCSC1 ◁ C2

36 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 29
transitive degreeμt(G) = 1980

A minimal faithful permutation representation — 2 generators on 29 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);(1,3,2,4)(6,13)(7,12)(8,11)(9,10)(15,18)(16,17)(20,29)(21,28)(22,27)(23,26)(24,25)

Polycyclic presentation:

2^2,3,5,11,3|a^2=b,c^3=f,c^a=c^2f^2,d^a=d^4,e^a=e^10,f^a=f^2

Conjugacy classes & character table

498 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC7×Dic495, Dic3465, Dic5445, …
maximal normal subgroup ofC7×Dic495, C11×Dic495, C13×Dic495, …
maximal quotient ofC7×Dic495, Dic3465, Dic5445, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1980, 11);