Galois Theory of p-Extensions
| Autor: | Koch, Helmut |
|---|---|
| EAN: | 9783642078170 |
| Sachgruppe: | Mathematik |
| Sprache: | Englisch |
| Seitenzahl: | 208 |
| Produktart: | Kartoniert / Broschiert |
| Veröffentlichungsdatum: | 04.12.2010 |
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First published in German in 1970 and translated into Russian in 1973, this classic now becomes available in English. After introducing the theory of pro-p groups and their cohomology, it discusses presentations of the Galois groups G S of maximal p-extensions of number fields that are unramified outside a given set S of primes. It computes generators and relations as well as the cohomological dimension of some G S, and gives applications to infinite class field towers.The book demonstrates that the cohomology of groups is very useful for studying Galois theory of number fields; at the same time, it offers a down to earth introduction to the cohomological method. In a "Postscript" Helmut Koch and Franz Lemmermeyer give a survey on the development of the field in the last 30 years. Also, a list of additional, recent references has been included.
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