d | ρ | Label | ID | ||
---|---|---|---|---|---|
C4xDic9 | 144 | C4xDic9 | 144,11 |
extension | φ:Q→Aut N | d | ρ | Label | ID |
---|---|---|---|---|---|
C4:Dic9 = C4:Dic9 | φ: Dic9/C18 → C2 ⊆ Aut C4 | 144 | C4:Dic9 | 144,13 |
extension | φ:Q→Aut N | d | ρ | Label | ID |
---|---|---|---|---|---|
C4.Dic9 = C4.Dic9 | φ: Dic9/C18 → C2 ⊆ Aut C4 | 72 | 2 | C4.Dic9 | 144,10 |
C4.2Dic9 = C9:C16 | central extension (φ=1) | 144 | 2 | C4.2Dic9 | 144,1 |
C4.3Dic9 = C2xC9:C8 | central extension (φ=1) | 144 | C4.3Dic9 | 144,9 |