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Cohomology Of Number Fields

Author: Jürgen Neukirch
Publisher: Springer Science & Business Media
ISBN: 3540378898
Size: 70.28 MB
Format: PDF, ePub, Docs
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This second edition is a corrected and extended version of the first. It is a textbook for students, as well as a reference book for the working mathematician, on cohomological topics in number theory. In all it is a virtually complete treatment of a vast array of central topics in algebraic number theory. New material is introduced here on duality theorems for unramified and tamely ramified extensions as well as a careful analysis of 2-extensions of real number fields.

Rational Points On Varieties

Author: Bjorn Poonen
Publisher: American Mathematical Soc.
ISBN: 1470437732
Size: 72.96 MB
Format: PDF
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This book is motivated by the problem of determining the set of rational points on a variety, but its true goal is to equip readers with a broad range of tools essential for current research in algebraic geometry and number theory. The book is unconventional in that it provides concise accounts of many topics instead of a comprehensive account of just one—this is intentionally designed to bring readers up to speed rapidly. Among the topics included are Brauer groups, faithfully flat descent, algebraic groups, torsors, étale and fppf cohomology, the Weil conjectures, and the Brauer-Manin and descent obstructions. A final chapter applies all these to study the arithmetic of surfaces. The down-to-earth explanations and the over 100 exercises make the book suitable for use as a graduate-level textbook, but even experts will appreciate having a single source covering many aspects of geometry over an unrestricted ground field and containing some material that cannot be found elsewhere.

Central Simple Algebras And Galois Cohomology

Author: Philippe Gille
Publisher: Cambridge University Press
ISBN: 1107156378
Size: 64.40 MB
Format: PDF, Kindle
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The first comprehensive modern introduction to central simple algebra starting from the basics and reaching advanced results.