Finite Group Databasebeta

#72242986

order1536
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22#87524
commutator, cosocleC4×#997C22
FrattiniC2×C4C2×#1020
FittingD4×H(5,𝔽2)D3
prime radicalD4×#997C2
hypercenterC2×D4#1020
hypocenter#997SD16
LCSG ▷ C4×#997 ▷ C2×#997 ▷ #997
UCSC1 ◁ C22 ◁ C2×C4 ◁ C2×D4

1827 conjugacy classes of subgroups; only the 34 normal subgroups are shown.

normal subgroups only

This group has 1827 conjugacy classes of subgroups — too many to draw. Only its 34 normal subgroups are shown.

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

Full subgroup data →

Presentation

minimal degreeμ(G) = 16
transitive degreeμt(G) = 64

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

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

Polycyclic presentation:

2^4,3,2^5|a^2=d,c^2=d,b^a=bc,c^a=cd,c^b=cd,e^a=e^2,f^a=g,f^e=g,g^a=f,g^e=fg,h^e=i,h^f=hj,h^g=hj,i^a=hi,i^e=hi,i^g=ij

Conjugacy classes & character table

50 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofSD16×#5934
maximal normal subgroup ofSD16×#5934

GAP

Past the SmallGroups library coverage — no SmallGroups id. Construct it from its polycyclic presentation:

gap> F := FreeGroup(IsSyllableWordsFamily, "a", "b", "c", "d", "e", "f", "g", "h", "i", "j");;
gap> coll := SingleCollector(F, [2, 2, 2, 2, 3, 2, 2, 2, 2, 2]);;
gap> SetPower(coll, 1, F.4);;
gap> SetPower(coll, 3, F.4);;
gap> SetConjugate(coll, 2, 1, F.2*F.3);;
gap> SetConjugate(coll, 3, 1, F.3*F.4);;
gap> SetConjugate(coll, 3, 2, F.3*F.4);;
gap> SetConjugate(coll, 5, 1, F.5^2);;
gap> SetConjugate(coll, 6, 1, F.7);;
gap> SetConjugate(coll, 6, 5, F.7);;
gap> SetConjugate(coll, 7, 1, F.6);;
gap> SetConjugate(coll, 7, 5, F.6*F.7);;
gap> SetConjugate(coll, 8, 5, F.9);;
gap> SetConjugate(coll, 8, 6, F.8*F.10);;
gap> SetConjugate(coll, 8, 7, F.8*F.10);;
gap> SetConjugate(coll, 9, 1, F.8*F.9);;
gap> SetConjugate(coll, 9, 5, F.8*F.9);;
gap> SetConjugate(coll, 9, 7, F.9*F.10);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);