d | ρ | Label | ID | ||
---|---|---|---|---|---|
C22×D45 | 180 | C2^2xD45 | 360,49 |
extension | φ:Q→Aut N | d | ρ | Label | ID |
---|---|---|---|---|---|
C2.1D90 = C4×D45 | central extension (φ=1) | 180 | 2 | C2.1D90 | 360,26 |
C2.2D90 = C2×Dic45 | central extension (φ=1) | 360 | C2.2D90 | 360,28 | |
C2.3D90 = Dic90 | central stem extension (φ=1) | 360 | 2- | C2.3D90 | 360,25 |
C2.4D90 = D180 | central stem extension (φ=1) | 180 | 2+ | C2.4D90 | 360,27 |
C2.5D90 = C45⋊7D4 | central stem extension (φ=1) | 180 | 2 | C2.5D90 | 360,29 |