About The Book
This is the second volume of a 2-volume textbook* which evolved from a course (Mathematics 160) offered at the California Institute of Technology du ring the last 25 years. The second volume presupposes a background in number theory com parable to that provided in the first volume, together with a knowledge of the basic concepts of complex analysis. Most of the present volume is devoted to elliptic functions and modular functions with some of their number-theoretic applications. Among the major topics treated are Rademacher’s convergent series for the partition function, Lehner’s congruences for the Fourier coefficients of the modular functionj( r), and Hecke’s theory of entire forms with multiplicative Fourier coefficients. The last chapter gives an account of Bohr’s theory of equivalence of general Dirichlet series. Both volumes of this work emphasize classical aspects of a subject wh ich in recent years has undergone a great deal of modern development.