Shear waves in polycrystalline media and modifications of the Keller approximation
A simple closed-form solution is derived for shear waves of an arbitrary frequency in polycrystalline media by invoking the Kramers-Kronig relations. Then modifications of the Keller approximation are considered from the viewpoint of causality of the coherent wave.
modifications of the Keller approximation
scientific article; zbMATH DE number 3970181