2.11 Ampère-Maxwell Matching Conditions: A surface current density K_(r_(s),t) flows in the z=0 plane which separates region I (z)>(0) from region 2(z)<(0). Each region contains arbitrary, time-dependent distributions of charge and current.
(a) For fields B(r,t) and E(r,t), use the theta function method of the text to derive a matching condition based on the Ampere-Maxwell law.