Finite Group Databasebeta

C19×D55 #14523456

order2090
isoclinismisoclinic class of D55
automorphism?
homologyAbelianization (H1) = C2×C19 · Schur multiplier (H2) = C1

Aliases

direct productC19×D55
unambiguous semidirect productC5⋊(C19×D11)
unambiguous semidirect productC11⋊(D5×C19)

Splittings

Fitting, socle, HallC5×C11×C19 ⋊ C2
derived, HallC5×C11 ⋊ C2×C19
HallC11×C19 ⋊ D5
HallC5×C19 ⋊ D11
SylowC11 ⋊ D5×C19
SylowC5 ⋊ C19×D11

Subgroups

subgroupG/H
center, hypercenterC19D55
commutator, cosocle, hypocenterC5×C11C2×C19
FrattiniC1G
Fitting, socleC5×C11×C19C2
LCSG ▷ C5×C11
UCSC1 ◁ C19

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 35
transitive degreeμt(G) = 1045

A minimal faithful permutation representation — 2 generators on 35 points:

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

Conjugacy classes & character table

551 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD19×D55, D5×C19×D11, D55⋊D19, …
maximal normal subgroup ofD19×D55, D5×C19×D11, D55⋊D19, …
maximal quotient ofC19×Dic55, C2×C19×D55, C7×C19×D55, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(2090, 8);