Finite Group Databasebeta

#72314282

order1024
nilpotency class4
automorphism?
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C28

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22C22×#442
commutatorC2×C8C24×C4
Frattini, cosocleC22×C8C25
prime radical#7623308C2
LCSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C22×#41 ◁ #20384 ◁ G
LECSG ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1

2857 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 40
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 40 points:

(1,2)(3,7)(4,5)(6,8)(9,10)(11,16)(12,15)(13,17)(14,18)(19,32)(20,30)(21,31)(22,26)(23,27)(24,28)(25,29)(33,37)(34,40)(35,39)(36,38);(2,5)(6,7)(10,15)(11,19,22,25)(13,21)(14,24)(16,29,26,32)(17,33)(20,34,36,35)(23,37)(27,31)(30,39,38,40);(3,8)(6,7)(10,15)(16,26)(17,27)(18,28)(29,32)(30,38)(31,33)(39,40);(1,3,4,8)(2,6,5,7)(11,20,22,36)(13,23)(16,30,26,38)(17,27)(19,34,25,35)(21,37)(29,39,32,40)(31,33);(9,11,21,34,24,36,13,25,12,22,37,35,14,20,23,19)(10,16,31,40,28,38,17,29,15,26,33,39,18,30,27,32)

Polycyclic presentation:

2^10|b^2=f,d^2=fgj,e^2=fhi,h^2=i,i^2=j,b^a=bg,c^a=cj,d^a=dgj,d^c=dgj,e^b=eh,e^d=ei,f^e=fj,h^b=hi,h^d=hj,h^e=hj,i^b=ij

Conjugacy classes & character table

106 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72314441, #72314521, #72315187
maximal normal subgroup of#72314441, #72314521, #72315187

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, 2, 2, 2, 2, 2, 2]);;
gap> SetPower(coll, 2, F.6);;
gap> SetPower(coll, 4, F.6*F.7*F.10);;
gap> SetPower(coll, 5, F.6*F.8*F.9);;
gap> SetPower(coll, 8, F.9);;
gap> SetPower(coll, 9, F.10);;
gap> SetConjugate(coll, 2, 1, F.2*F.7);;
gap> SetConjugate(coll, 3, 1, F.3*F.10);;
gap> SetConjugate(coll, 4, 1, F.4*F.7*F.10);;
gap> SetConjugate(coll, 4, 3, F.4*F.7*F.10);;
gap> SetConjugate(coll, 5, 2, F.5*F.8);;
gap> SetConjugate(coll, 5, 4, F.5*F.9);;
gap> SetConjugate(coll, 6, 5, F.6*F.10);;
gap> SetConjugate(coll, 8, 2, F.8*F.9);;
gap> SetConjugate(coll, 8, 4, F.8*F.10);;
gap> SetConjugate(coll, 8, 5, F.8*F.10);;
gap> SetConjugate(coll, 9, 2, F.9*F.10);;
gap> UpdatePolycyclicCollector(coll);;
gap> G := GroupByRws(coll);