Valuations, Orderings, and Milnor $K$-Theory

Valuations, Orderings, and Milnor $K$-Theory
Author :
Publisher : American Mathematical Soc.
Total Pages : 305
Release :
ISBN-10 : 9780821840412
ISBN-13 : 082184041X
Rating : 4/5 (12 Downloads)

Book Synopsis Valuations, Orderings, and Milnor $K$-Theory by : Ido Efrat

Download or read book Valuations, Orderings, and Milnor $K$-Theory written by Ido Efrat and published by American Mathematical Soc.. This book was released on 2006 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph is a comprehensive exposition of the modern theory of valued and ordered fields. It presents the classical aspects of such fields: their arithmetic, topology, and Galois theory. Deeper cohomological aspects are studied in its last part in an elementary manner. This is done by means of the newly developed theory of generalized Milnor $K$-rings. The book emphasizes the close connections and interplay between valuations and orderings, and to a large extent, studies themin a unified manner. The presentation is almost entirely self-contained. In particular, the text develops the needed machinery of ordered abelian groups. This is then used throughout the text to replace the more classical techniques of commutative algebra. Likewise, the book provides an introductionto the Milnor $K$-theory. The reader is introduced to the valuation-theoretic techniques as used in modern Galois theory, especially in applications to birational anabelian geometry, where one needs to detect valuations from their ``cohomological footprints''. These powerful techniques are presented here for the first time in a unified and elementary way.


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