Description
This monograph is a beginner-friendly introduction to generalised functions, Fourier integrals, and Fourier series. It is suitable for advanced university students and can be used for a short undergraduate lecture course. The book uses generalised-function theory to derive a simple method for obtaining asymptotic expressions for Fourier transforms and coefficients. It aims to provide a straightforward and uncomplicated approach to these topics.
This monograph on generalised functions, Fourier integrals and Fourier series is intended for readers who, while accepting that a theory where each point is proved is better than one based on conjecture, nevertheless seek a treatment as elementary and free from complications as possible. Little detailed knowledge of particular mathematical techniques is required; the book is suitable for advanced university students, and can be used as the basis of a short undergraduate lecture course. A valuable and original feature of the book is the use of generalised-function theory to derive a simple, widely applicable method of obtaining asymptotic expressions for Fourier transforms and Fourier coefficients.