Extensions 1→N→G→Q→1 with N=C₉ and Q=C₉

Direct product G=N×Q with N=C₉ and Q=C₉

		d	ρ	Label	ID
C₉²		81		C9^2	81,2

Semidirect products G=N:Q with N=C₉ and Q=C₉

extension	φ:Q→Aut N	d	ρ	Label	ID
C₉⋊C₉ = C₉⋊C₉	φ: C₉/C₃ → C₃ ⊆ Aut C₉	81		C9:C9	81,4

Non-split extensions G=N.Q with N=C₉ and Q=C₉

extension	φ:Q→Aut N	d	ρ	Label	ID
C₉.C₉ = C₂₇⋊C₃	φ: C₉/C₃ → C₃ ⊆ Aut C₉	27	3	C9.C9	81,6

⋊

ℤ

𝔽

○

≀

ℚ

◁

Extensions 1→N→G→Q→1 with N=C9 and Q=C9