This is the first detailed elementary introduction to Galois cohomology and its applications. The introductory section is self-contained and provides the basic

The first comprehensive modern introduction to central simple algebra starting from the basics and reaching advanced results.

Helmut Koch's classic is now available in English. Competently translated by Franz Lemmermeyer, it introduces the theory of pro-p groups and their cohomology. T

Modular forms are tremendously important in various areas of mathematics, from number theory and algebraic geometry to combinatorics and lattices. Their Fourier

This is an updated English translation of Cohomologie Galoisienne, published more than thirty years ago as one of the very first versions of Lecture Notes in Ma