Extensions 1→N→G→Q→1 with N=D5 and Q=D21

Direct product G=NxQ with N=D5 and Q=D21
dρLabelID
D5xD211054+D5xD21420,28


Non-split extensions G=N.Q with N=D5 and Q=D21
extensionφ:Q→Out NdρLabelID
D5.D21 = C5:Dic21φ: D21/C21C2 ⊆ Out D51054D5.D21420,23

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