Extensions 1→N→G→Q→1 with N=C2 and Q=D109

Direct product G=N×Q with N=C2 and Q=D109
dρLabelID
D2182182+D218436,4


Non-split extensions G=N.Q with N=C2 and Q=D109
extensionφ:Q→Aut NdρLabelID
C2.D109 = Dic109central extension (φ=1)4362-C2.D109436,1

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