Finite Group Databasebeta
Cayley diagram

C7⋊PSU(3,𝔽2) #92745

order504
isoclinismisoclinic class of C7⋊PSU(3,𝔽2)
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C3

Aliases

unambiguous semidirect productC7⋊PSU(3,𝔽2)

Splittings

Fitting, socle, HallC32×C7 ⋊ Q8
SylowC32 ⋊ Dic14
SylowC7 ⋊ PSU(3,𝔽2)

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, prime radical, cosocleC7×C3⋊D3C22
Fitting, socle, hypocenterC32×C7Q8
LCSG ▷ C7×C3⋊D3 ▷ C32×C7
UCSC1

28 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 16
transitive degreeμt(G) = 63

A minimal faithful permutation representation — 2 generators on 16 points:

(1,7,6,8)(3,4,9,5)(10,11,13,15,16,14,12);(2,4,6,8)(3,7,5,9)(11,12)(13,14)(15,16)

Polycyclic presentation:

2^3,3^2,7|a^2=c,b^2=c,b^a=bc,d^a=d^2e,e^a=de,f^a=f^6,d^b=e^2,e^b=d,d^c=d^2,e^c=e^2

Conjugacy classes & character table

24 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#11759722, AGL(1,𝔽9)⋊D7, D7×PSU(3,𝔽2), …
maximal normal subgroup of#11759722, AGL(1,𝔽9)⋊D7, D7×PSU(3,𝔽2), …
maximal quotient of#11759413, #11759414, C2×C7⋊PSU(3,𝔽2), …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(504, 171);