Extensions 1→N→G→Q→1 with N=3- 1+2 and Q=C12

Direct product G=N×Q with N=3- 1+2 and Q=C12
dρLabelID
C12×3- 1+2108C12xES-(3,1)324,107

Semidirect products G=N:Q with N=3- 1+2 and Q=C12
extensionφ:Q→Out NdρLabelID
3- 1+21C12 = C4×C3≀C3φ: C12/C4C3 ⊆ Out 3- 1+2363ES-(3,1):1C12324,31
3- 1+22C12 = C4×He3.C3φ: C12/C4C3 ⊆ Out 3- 1+21083ES-(3,1):2C12324,32
3- 1+23C12 = C3×C9⋊C12φ: C12/C6C2 ⊆ Out 3- 1+2366ES-(3,1):3C12324,94
3- 1+24C12 = C4×C9○He3φ: trivial image1083ES-(3,1):4C12324,108

Non-split extensions G=N.Q with N=3- 1+2 and Q=C12
extensionφ:Q→Out NdρLabelID
3- 1+2.C12 = C4×C3.He3φ: C12/C4C3 ⊆ Out 3- 1+21083ES-(3,1).C12324,34

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