Extensions 1→N→G→Q→1 with N=C121 and Q=C22

Direct product G=NxQ with N=C121 and Q=C22
dρLabelID
C2xC242484C2xC242484,4

Semidirect products G=N:Q with N=C121 and Q=C22
extensionφ:Q→Aut NdρLabelID
C121:C22 = D242φ: C22/C2C2 ⊆ Aut C1212422+C121:C2^2484,3


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