Devoted to a study of the infinities in electromagnetic fields and in their sources, this is a companion volume to the many available graduate textbooks on electromagnetic theory. Far from being formal, this information takes both a theoretical and numerical approach and can be used, for example, to significantly accelerate the convergence of a numerical algorithm. An analysis of the nature of singularities associated with (1) the densities of very concentrated sources, (2) the fields these sources create, and (3) the fields near geometrical singularities is presented. The material is of particular interest to applied physicists and engineers engaged in the numerical solution of electromagnetic problems.
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