Finite Group Databasebeta
Cayley diagram

3−1+4 #6919

order243
nilpotency class2
isoclinismisoclinic class of H(5,𝔽3)
automorphismAut(G) order 104976
homologyAbelianization (H1) = C34 · Schur multiplier (H2) = C35

Aliases

extraspecial3−1+4

Subgroups

subgroupG/H
center, commutator, Frattini, socle, cosocleC3C34
prime radicalC3×H(3,𝔽3)C3
LCSG ▷ C3 ▷ C1
UCSC1 ◁ C3 ◁ G
LECSG ▷ C3 ▷ C1

230 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 27
transitive degreeμt(G) = 27

A minimal faithful permutation representation — 4 generators on 27 points:

(1,2,5,4,8,15,13,7,19)(3,9,20,12,18,14,11,6,16)(10,22,26,23,17,27,24,21,25);(1,3,10)(2,6,17)(4,12,23)(5,14,25)(7,18,22)(8,9,21)(11,24,13)(15,16,26)(19,20,27);(3,11,12)(6,18,9)(10,23,24)(14,20,16)(17,21,22)(25,26,27);(2,7,8)(5,15,19)(6,18,9)(14,16,20)(17,22,21)(25,26,27)

Polycyclic presentation:

3^5|a^3=e,b^a=be,d^a=de,c^b=ce

Conjugacy classes & character table

83 conjugacy classes — view the full character table.

Relationships

Fitting subgroup of#4207⋊C3, #92394, #66419⋊C3, …
maximal subgroup of#4207⋊C3, #92394, C2×3−1+4, …
maximal normal subgroup of#4207⋊C3, #92394, C2×3−1+4, …
maximal quotient ofC2×3−1+4, #10624862, #10624863, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(243, 66);