Algebraic Number Theory - J.S. Milne   Top
Course Notes
Group Theory
Fields and Galois Theory
Algebraic Geometry
Algebraic Number Theory
Modular Functions and Modular Forms
Elliptic Curves
Abelian Varieties
Lectures on Etale Cohomology
Class Field Theory
Complex Multiplication
Algebraic Groups; Lie Algebras; Lie Groups; Reductive Groups
Errata
Current version (3.08)
pdf file for printing (11pt; a4paper; margins)
Same file with margins cropped --- may be better for viewing on gadgets.
pdf file formatted for ereaders (9pt; 89mm x 120mm; 5mm margins)(3.03)

This is a fairly standard graduate course on algebraic number theory.

Contents

  1. Preliminaries From Commutative Algebra
  2. Rings of Integers
  3. Dedekind Domains; Factorization
  4. The Finiteness of the Class Number
  5. The Unit Theorem
  6. Cyclotomic Extensions; Fermat's Last Theorem
  7. Valuations; Local Fields
  8. Global Fields

Prerequisites

The algebra usually covered in a first-year graduate course, including Galois theory, group theory, and multilinear algebra. An undergraduate number theory course will also be helpful.

History

v2.01; August 14, 1996; first version on the web; 144p.
v2.10; August 31, 1998; fixed many minor errors; added exercises and index; 140p.
v3.00; February 11, 2008; corrected; revisions and additions; 163 pages.
v3.01; September 28, 2008; fixed a problem with the hyperlinks; 163 pages.
v3.02; April 30, 2009; fixed many minor errors; changed chapter and pages styles; 164 pages.
v3.03; May 29, 2011; minor fixes; 167 pages.
v3.04; April 16, 2012; minor fixes; 160 pages.
v3.05; March, 21, 2013; minor fixes; 161 pages.
v3.06; May, 28, 2014; minor fixes; added Hermite's theorem; 164 pages.
v3.07; March 18, 2017; minor fixes; 165 pages.
v3.08; July 19, 2020; minor fixes; 166 pages.

pdf (old version 2.10)
pdf (old version 3.00)
pdf (old version 3.01)