Extensions 1→N→G→Q→1 with N=C3 and Q=C19:C3

Direct product G=NxQ with N=C3 and Q=C19:C3
dρLabelID
C3xC19:C3573C3xC19:C3171,4


Non-split extensions G=N.Q with N=C3 and Q=C19:C3
extensionφ:Q→Aut NdρLabelID
C3.(C19:C3) = C19:2C9central extension (φ=1)1713C3.(C19:C3)171,1

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