Diffraction by a half-plane with two face impedances uniform asymptotic expansion for plane wave and arbitrary line source incidence

A uniform asymptotic expansion (UAE) of Maliuzhinets´ exact solution for incident plane wave diffraction by a half-plane with two face impedances has been obtained using Van der Waerden´s method. This solution has been further extended to the case of arbitrary line source incidence using a heuristic approach.