Complex Variable and Fourier Transforms: 1.1 Introduction 1.2 Complex variable theory 1.3 Analytic functions defined by integrals 1.4 The Fourier integral 1.5 The wave equation 1.6 Contour integrals of a certain type 1.7 The Wiener-Hopf procedure Miscellaneous examples and results I Basic Procedures: Half-Plane Problems: 2.1 Introduction 2.2 Jones's method 2.3 A dual integral equation method 2.4 Integral equation formulations 2.5 Solution of the integral equations 2.6 Discussion of the solution 2.7 Comparison of methods 2.8 Boundary conditions specified by general functions 2.9 Radiation-type boundary conditions Miscellaneous examples and results II Further Wave Problems: 3.1 Introduction 3.2 A plane wave incident on two semi-infinite parallel planes 3.3 Radiation from two parallel semi-infinite plates 3.4 Radiation from a cylindrical pipe 3.5 Semi-infinite strips parallel to the walls of a duct 3.6 A strip across a duct Miscellaneous examples and results III Extensions and Limitations of the Method: 4.1 Introduction 4.2 The Hilbert problem 4.3 General considerations 4.4 Simultaneous Wiener-Hopf equations 4.5 Approximate factorization 4.6 Laplace's equation in polar co-ordinates Miscellaneous examples and results IV Some Approximate Methods: 5.1 Introduction 5.2 Some problems which cannot be solved exactly 5.3 General theory of a special equation 5.4 Diffraction by a thick semi-infinite strip 5.5 General theory of another special equation 5.6 Diffraction by strips and slits of finite width Miscellaneous examples and results V The General Solution of the Basic Wiener-Hopf Problem: 6.1 Introduction 6.2 The exact solution of certain dual integral equations Miscellaneous examples and results VI Bibliography Index.