Finite Group Databasebeta

#72307206

order1024
nilpotency class3
automorphism?
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4C2×#535
commutator, Frattini, cosocleC2×C42C25
socleC22#34963
LCSG ▷ C2×C42 ▷ C22 ▷ C1
UCSC1 ◁ C2×C4 ◁ C2×C4×C8 ◁ G
LECSG ▷ C2×C42 ▷ C22 ▷ C1

3083 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 40
transitive degreeμt(G) = 64

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

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

Polycyclic presentation:

2^10|a^2=g,b^2=gh,c^2=gh,e^2=hij,f^2=i,g^2=j,h^2=j,b^a=bh,c^a=cf,d^c=dgh,e^a=ehij,e^b=ej,e^c=ei,f^a=fi,f^c=fij,f^d=fj,h^a=hj

Conjugacy classes & character table

112 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72307250, #72307707
maximal normal subgroup of#72307250, #72307707

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