Extensions 1→N→G→Q→1 with N=Q64 and Q=C2

Direct product G=N×Q with N=Q64 and Q=C2
dρLabelID
C2×Q64128C2xQ64128,993

Semidirect products G=N:Q with N=Q64 and Q=C2
extensionφ:Q→Out NdρLabelID
Q641C2 = SD128φ: C2/C1C2 ⊆ Out Q64642Q64:1C2128,162
Q642C2 = Q64⋊C2φ: C2/C1C2 ⊆ Out Q64644-Q64:2C2128,996
Q643C2 = C4○D32φ: trivial image642Q64:3C2128,994

Non-split extensions G=N.Q with N=Q64 and Q=C2
extensionφ:Q→Out NdρLabelID
Q64.C2 = Q128φ: C2/C1C2 ⊆ Out Q641282-Q64.C2128,163

׿
×
𝔽