Extensions 1→N→G→Q→1 with N=C5 and Q=C5×C20

Direct product G=N×Q with N=C5 and Q=C5×C20
dρLabelID
C52×C20500C5^2xC20500,40

Semidirect products G=N:Q with N=C5 and Q=C5×C20
extensionφ:Q→Aut NdρLabelID
C5⋊(C5×C20) = F5×C52φ: C5×C20/C52C4 ⊆ Aut C5100C5:(C5xC20)500,41
C52(C5×C20) = Dic5×C52φ: C5×C20/C5×C10C2 ⊆ Aut C5100C5:2(C5xC20)500,37

Non-split extensions G=N.Q with N=C5 and Q=C5×C20
extensionφ:Q→Aut NdρLabelID
C5.1(C5×C20) = C4×He5central stem extension (φ=1)1005C5.1(C5xC20)500,13
C5.2(C5×C20) = C4×5- 1+2central stem extension (φ=1)1005C5.2(C5xC20)500,14

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