The Problem of Scattering by a Mixture of Cracks and Obstacles

The Problem of Scattering by a Mixture of Cracks and Obstacles

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Consider the scattering of an electromagnetic time-harmonic plane wave by an infinite cylinder having an open crack and a bounded domain 9.5-4 igora vibrance in as cross section.We assume that the crack is divided into two parts, and one of the two parts is (possibly) coated on one 2009 buick lucerne catalytic converter side by a material with surface impedance.Different boundary conditions are given on and.

Applying potential theory, the problem can be reformulated as a boundary integral system.We obtain the existence and uniqueness of a solution to the system by using Fredholm theory.