Extensions 1→N→G→Q→1 with N=C2 and Q=C5×D9

Direct product G=N×Q with N=C2 and Q=C5×D9
dρLabelID
C10×D9902C10xD9180,10


Non-split extensions G=N.Q with N=C2 and Q=C5×D9
extensionφ:Q→Aut NdρLabelID
C2.(C5×D9) = C5×Dic9central extension (φ=1)1802C2.(C5xD9)180,1

׿
×
𝔽