Determinant character (source code)

= Determinant character
{title2=$\det\theta(g)=\det\rho(g)$}

For a <group representation> $\rho$ with character $\theta$, its determinant character sends $g$ to $\det\rho(g)$. Multiplicativity makes it a <linear character>, independent of the equivalent matrix realization of $\rho$.