Finite Group Databasebeta
Cayley diagram

Dic27 #1074

order108
isoclinismisoclinic class of D27
automorphismAut(G) = C2×AGL(1,ℤ/27) (order 972) · Inn(G) = D27 · Out(G) = C2×C9
homologyAbelianization (H1) = C4 · Schur multiplier (H2) = C1

Aliases

dicyclicDic27
unambiguous semidirect productC27⋊C4

Splittings

derived, SylowC27 ⋊ C4

Subgroups

subgroupG/H
center, hypercenterC2D27
commutator, hypocenterC27C4
FrattiniC2×C9D3
Fitting, cosocleC2×C27C2
socle, prime radicalC2×C3D9
LCSG ▷ C27
UCSC1 ◁ C2

12 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 31
transitive degreeμt(G) = 108

A minimal faithful permutation representation — 2 generators on 31 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);(1,3,2,4)(6,31)(7,30)(8,29)(9,28)(10,27)(11,26)(12,25)(13,24)(14,23)(15,22)(16,21)(17,20)(18,19)

Polycyclic presentation:

2^2,3^3|a^2=b,c^3=d^2e,d^3=e^2,c^a=c^2d,d^a=d^2e,e^a=e^2

Conjugacy classes & character table

30 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofDic54, C4×D27, C2×Dic27, …
maximal normal subgroup ofDic54, C4×D27, C2×Dic27, …
maximal quotient ofC27⋊C8, C2×Dic27, Dic81, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(108, 1);