Introduction to Algebraic and Abelian Functions - Graduate Texts in Mathematics 2nd Ed. 1982. Softcover Reprint of the Original 2n edition Serge Lang

Introduction to Algebraic and Abelian Functions is a self-contained presentation of a fundamental subject in algebraic geometry and number theory. For this revised edition, the material on theta functions has been expanded, and the example of the Fermat curves is carried throughout the text. This volume is geared toward a second-year graduate course, but it leads naturally to the study of more advanced books listed in the bibliography.