This book provides a detailed and largely self-contained description of various classical and new results on solvability and unsolvability of equations in expli

The first part of this book provides an elementary and self-contained exposition of classical Galois theory and its applications to questions of solvability of

Starting from the classical finite-dimensional Galois theory of fields, this book develops Galois theory in a much more general context, presenting work by Grot

Assuming little technical background, the author presents the strong analogies between these two concepts starting at an elementary level.

The seminal ‘MIT notes’ of Dennis Sullivan were issued in June 1970 and were widely circulated at the time. The notes had a - jor in?uence on the developmen