Extensions 1→N→G→Q→1 with N=C2 and Q=C7×D7

Direct product G=N×Q with N=C2 and Q=C7×D7
dρLabelID
D7×C14282D7xC14196,10


Non-split extensions G=N.Q with N=C2 and Q=C7×D7
extensionφ:Q→Aut NdρLabelID
C2.(C7×D7) = C7×Dic7central extension (φ=1)282C2.(C7xD7)196,5

׿
×
𝔽