Fundamentals and Applications of Complex Analysis

This book is intended to serve as a text for first and second year courses in single variable complex analysis. The material that is appropriate for more advanced study is developed from elementary material. The concepts are illustrated with large numbers of examples, many of which involve problems students encounter in other courses. For example, students who have taken an introductory physics course will have encountered analysis of simple AC circuits. This text revisits such analysis using complex numbers. Cauchy's residue theorem is used to evaluate many types of definite integrals that students are introduced to in the beginning calculus sequence. Methods of conformal mapping are used to solve problems in electrostatics. The book contains material that is not considered in other popular complex analysis texts. For example, one chapter is devoted to an analysis of multivalued functions, with applications to the evaluation of certain types of integrals. Another chapter deals with the singularity structure of functions that are defined by integrals which cannot be evaluated in terms of elementary functions. A third chapter develops dispersion relations, which are mathematical tools for determining a complete function from a knowledge of just the real part, or just the imaginary part of the function.

"The textbook Fundamentals and Applications of Complex Analysis by Harold Cohen is an idiosyncratic treatment of the subject, written by a physicist, with lots of interesting insights and alternative ways of viewing the ideas and methods of complex analysis. The books includes several excursions into applications of interest to physicists and electrical engineers, as circuit analysis and a chapter on dispersion relations. The book would be of particular interest to physics and electrical engineering students. Mathematicians might find it a good hunting ground for offbeat approaches to familiar themes and for various other serendipities."
(Ted Gamelin, UCLA)

"...This book might be useful for readers who are still familiar with complex analysis and who are searching for several examples, exercises or applications in physics and engineering..."

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