Finite Group Databasebeta

C9⋊#5931 #13164541

order1728
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C22×C3

Aliases

unambiguous semidirect productC9⋊#5931

Splittings

FittingC22×Q8×C9 ⋊ D3
derivedC9×C22⋊SL(2,𝔽3) ⋊ C2

Subgroups

subgroupG/H
center, hypercenterC2C9⋊#1020
commutator, cosocle, hypocenterC9×C22⋊SL(2,𝔽3)C2
FrattiniC2×C3C3⋊#1020
FittingC22×Q8×C9D3
socleC23×C3C3⋊S4
LCSG ▷ C9×C22⋊SL(2,𝔽3)
UCSC1 ◁ C2

287 conjugacy classes of subgroups; only the 29 normal subgroups are shown.

normal subgroups only

This group has 287 conjugacy classes of subgroups — too many to draw. Only its 29 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

transitive degreeμt(G) = 216

Polycyclic presentation:

2,3^3,2^5|c^3=d,g^2=i,h^2=i,b^a=b^2,c^a=c^2d^2,d^a=d^2,e^a=ef,g^a=gh,h^a=hi,e^b=f,f^b=ef,g^b=h,h^b=ghi,h^g=hi

Conjugacy classes & character table

63 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1728, 30604);