A unified and consistent view on the singularities of the electric dyadic Green's function in the source region

Ambiguities associated with the singularity of the electric dyadic Green's function are clarified. The numerical advantages of finite and infinitesimal principal volumes are dependent on the particular problem being treated. It is shown that apparent discrepancies are nonexistent and that either the method of potential or the theory of distribution can be used in this problem and a unified and consistent view can be formed.