Excerpt from Asymptotic Solution of Some Diffraction Problems Several have recently discussed a method by which the asymptotic expansion with respect to frequency may be determined for periodic solutions of electromagnetic, acoustic, and other linear wave problems. However, virtually no applications of the method have been made. In the present paper we explain the method, and apply it to construct the asymptotic solutions of a var iety of diffraction problems. Many of these problems have not been solved pre viously. In some cases where the problems have been solved previously we verify that the asymptotic expansions of the known solutions coincide with our asymptotic solutions and compare the exact solutions graphically with the first few terms of the asymptotic solutions. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.