cover of book Primes of the Form x2 + ny2:
Fermat, Class Field Theory, and Complex Multiplication

by David A. Cox,
Amherst College

John Wiley & Sons

Hardback Edition, 1989
Paperback Edition, 1997



Typographical Errors

Lists of typographical errors are available for the two printings of the hardback edition. To find out which printing you have, check the bottom line on the copyright page; the last digit displayed is the printing number.

For the softcover edition, most (but not all) typographical errors were corrected. The remaining errors are available in pdf or postscript . If you find any typos not on this list, definitely let me know!


Additional Exercises

For a nice set of exercises that supplement Chapter One of the book, click here. I am grateful to Jeffrey Stopple for preparing these exercises.


Ordering Information

Click here for the Wiley catalog page for Primes of the Form x2 + ny2. This page inlcudes a brief description of the book and information on how to order a copy.


Contacting the Author

You can contact me at

dac@cs.amherst.edu