Separation of the coupling matrix: $C^{(\varsigma)}(r,\theta) = R^{(\varsigma)}(r) + i\,\Theta^{(\varsigma)}(\theta)$

Initializing...

Separation of the coupling matrix: $C^{(\varsigma)}(r,\theta) = R^{(\varsigma)}(r) + i\,\Theta^{(\varsigma)}(\theta)$ · Prove2Me