Since 1973,
Galois Theory
has been educating undergraduate students on Galois groups and classical Galois theory. In
Galois Theory, Fourth Edition
, mathematician and popular science author Ian Stewart updates this well-established textbook for today's algebra students.
New to the Fourth Edition
The replacement of the topological proof of the fundamental theorem of algebra with a simple and plausible result from point-set topology and estimates that will be familiar to anyone who has taken a first course in analysis
Revised chapter on ruler-and-compass constructions that results in a more elegant theory and simpler proofs
A section on constructions using an angle-trisector since it is an intriguing and direct application of the methods developed
A new chapter that takes a retrospective look at what Galois actually did compared to what many assume he did
Updated references
This bestseller continues to deliver a rigorous yet engaging treatment of the subject while keeping pace with current educational requirements. More than 200 exercises and a wealth of historical notes augment the proofs, formulas, and theorems.