Low Frequency Behavior of Solutions to Electromagnetic Scattering Problems in Chiral Media

This paper deals with the low-frequency scattering problem by a conducting object in a chiral medium. With boundary integral equation methods, we obtain the limit of the scattered eld, solution of the Drude-Born-Fedorov equations as frequency tends to zero. Making use of a Hodge decomposition of the tangent elds shows that the asymptotics strongly depend on the topological properties of the domains under consideration. The asymptotic expansion's dependence on the chirality parameter is completely shown.