Ebook: A First Course in Modular Forms

This book introduces the theory of modular forms with an eye toward the Modularity Theorem:

All rational elliptic curves arise from modular forms.

The topics covered include

* elliptic curves as complex tori and as algebraic curves,

* modular curves as Riemann surfaces and as algebraic curves,

* Hecke operators and Atkin--Lehner theory,

* Hecke eigenforms and their arithmetic properties,

* the Jacobians of modular curves and the Abelian varieties

associated to Hecke eigenforms,

* elliptic and modular curves modulo~$p$ and the Eichler--Shimura

Relation,

* the Galois representations associated to elliptic curves

and to Hecke eigenforms.

As it presents these ideas, the book states the Modularity Theorem in various forms, relating them to each other and touching on their applications to number theory.

A First Course in Modular Forms is written for beginning graduate students and advanced undergraduates. It does not require background in algebraic number theory or algebraic geometry, and it contains exercises throughout.

Fred Diamond received his Ph.D from Princeton University in 1988 under the direction of Andrew Wiles and now teaches at Brandeis University. Jerry Shurman received his Ph.D from Princeton University in 1988 under the direction of Goro Shimura and now teaches at Reed College.

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Many good introductions to elliptic modular forms already exist, however this book aims to provide a slightly more expansive exposition with portions of the development presented as exercises in order to ease the transition into the subject. This book also covers topics not covered in other texts. Prerequisites for reading this book are undergraduate courses in linear algebra, real analysis, complex analysis, modern algebra, and elementary number theory. This text is based on the first author's lecture notes from a course at Cambridge University.