Finite Group Databasebeta

#72298085

order1024
nilpotency class2
automorphism?
homologyAbelianization (H1) = C26 · Schur multiplier (H2) = C214

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, commutator, Frattini, socle, cosocleC24C26
LCSG ▷ C24 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C24 ▷ C1

At least 7393 conjugacy classes of subgroups; only the 3997 normal subgroups are shown.

Full subgroup data →

Presentation

minimal degreeμ(G) = 20
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 6 generators on 20 points:

(2,4)(10,12)(13,14)(15,19)(16,18)(17,20);(2,4)(5,6,8,7)(9,10)(11,12)(13,15)(14,17)(16,20)(18,19);(2,4)(5,6)(7,8)(13,14)(15,19)(16,18)(17,20);(6,7)(13,14,16,18)(15,19,20,17);(2,4)(5,7,8,6)(13,14)(15,17)(16,18)(19,20);(1,2)(3,4)(13,15)(14,17)(16,20)(18,19)

Polycyclic presentation:

2^10|b^2=hj,d^2=ij,e^2=hj,b^a=bh,c^b=chi,d^a=dij,d^b=dhi,d^c=dhi,e^c=ehj,e^d=ehi,f^a=fg,f^b=fgij,f^c=fg,f^d=fij,f^e=fgij

Conjugacy classes & character table

148 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72298104, C2×#72298085
maximal normal subgroup of#72298104, C2×#72298085
maximal quotient of#72298587, C2×#72298085

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