Finite Group Databasebeta
Cayley diagram

D44 #765

order88
isoclinismisoclinic class of Dic22
automorphismAut(G) = D4×AGL(1,𝔽11) (order 880) · Inn(G) = C2×D11 · Out(G) = C22×C5
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD44
unambiguous semidirect productC4⋊D11

Splittings

FittingC4×C11 ⋊ C2
SylowC11 ⋊ D4

Subgroups

subgroupG/H
center, FrattiniC2C2×D11
commutator, socle, cosocleC2×C11C22
FittingC4×C11C2
hypercenterC4D11
hypocenterC11D4
LCSG ▷ C2×C11 ▷ C11
UCSC1 ◁ C2 ◁ C4

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 15
transitive degreeμt(G) = 44

A minimal faithful permutation representation — 2 generators on 15 points:

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

Polycyclic presentation:

2^3,11|b^2=c,b^a=bc,d^a=d^10

Conjugacy classes & character table

25 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#4314, D88, #4323, …
maximal normal subgroup of#4314, D88, #4323, …
maximal quotient of#4314, D88, Dic44, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(88, 5);