Extensions 1→N→G→Q→1 with N=C2 and Q=C9×D7

Direct product G=N×Q with N=C2 and Q=C9×D7
dρLabelID
D7×C181262D7xC18252,12


Non-split extensions G=N.Q with N=C2 and Q=C9×D7
extensionφ:Q→Aut NdρLabelID
C2.(C9×D7) = C9×Dic7central extension (φ=1)2522C2.(C9xD7)252,4

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