Normalized two-cocycle
= Normalized two-cocycle
A two-cocycle is normalized when $c(1,g)=c(g,1)=0$ in additive notation, or $c(1,g)=c(g,1)=1$ in multiplicative notation.
= Normalized two-cocycle
A two-cocycle is normalized when $c(1,g)=c(g,1)=0$ in additive notation, or $c(1,g)=c(g,1)=1$ in multiplicative notation.