Character orthogonality
= Character orthogonality
= Orthogonality of characters
{synonym}
Irreducible characters are orthonormal for $\langle\chi,\psi\rangle=|G|^{-1}\sum_g\chi(g)\overline{\psi(g)}$, and $\sum_\chi\chi(1)^2=|G|$.
= Character orthogonality
= Orthogonality of characters
{synonym}
Irreducible characters are orthonormal for $\langle\chi,\psi\rangle=|G|^{-1}\sum_g\chi(g)\overline{\psi(g)}$, and $\sum_\chi\chi(1)^2=|G|$.