Acoustic scattering by impedance screens/cracks with fractal boundary: well-posedness analysis and boundary element approximation

J. Bannister, A. Gibbs, D. P. Hewett

We study time-harmonic scattering in ${\mathbb{R}}^n$ ($n=2,3$) by a planar screen (a "crack" in the context of linear elasticity), assumed to be a non-empty bounded relatively open…