Rational Points on Varieties
Published on 31. January 2017
Book
Paperback/Softback
337 pages
978-1-4704-7458-4 (ISBN)
Description
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, etale 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.
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.
Reviews / Votes
"The reviewer cannot emphasize enough how brilliant and necessary this book is. It will be a great reference text for researchers and essential reading for graduate students in arithmetic geometry for many years to come. I will certainly be recommending that all my Ph.D. students study it in great detail." - Daniel Loughran, Mathematical Reviews"A monograph/textbook whose main goals are to introduce the interested reader to the methods and problems of arithmetic geometry and at the same time discuss open problems of interest for further research is therefore a most welcome addition to a classical subject..The choice of topics and the decisions on what to spell out and what to just barely sketch, with adequate pointers to the existing literature, make the book under review an excellent quick introduction and reference on this subject..The book is well structured, balancing explicit constructions, terse arguments, and precise references to the literature when needed." - Felipe Zaldivar, MAA Reviews
"The origins of arithmetic (or Diophantine) geometry can be traced back to antiquity, and it remains a lively and wide research domain up to our days. The book by Bjorn Poonen, a leading expert in the field, opens doors to this vast field for many readers with different experiences and backgrounds. It leads through various algebraic geometric constructions towards its central subject: obstructions to existence of rational points." - Yuri Manin, Max-Planck-Institute, Bonn
"It is clear that my mathematical life would have been very different if a book like this had been around at the time I was a student." - Hendrik Lenstra, University Leiden
"Understanding rational points on arbitrary algebraic varieties is the ultimate challenge. We have conjectures but few results. Poonen's book, with its mixture of basic constructions and openings into current research, will attract new generations to the Queen of Mathematics." - Jean-Louis Colliot-Thelene, Universite Paris-Sud
"A beautiful subject, handled by a master." - Joseph Silverman, Brown University
More details
Series
Language
English
Place of publication
Providence
United States
Target group
Professional and scholarly
ISBN-13
978-1-4704-7458-4 (9781470474584)
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Schweitzer Classification
Person
Bjorn Poonen, Massachusetts Institute of Technology, Cambridge, MA.
Content
Fields
Varieties over arbitrary fields
Properties of morphisms
Faithfully flat descent
Algebraic groups
Etale and fppf cohomology
The Weil conjecture
Cohomological obstructions to rational points
Surfaces
Universes
Other kinds of fields
Properties under base extension
Bibliography
Index
Varieties over arbitrary fields
Properties of morphisms
Faithfully flat descent
Algebraic groups
Etale and fppf cohomology
The Weil conjecture
Cohomological obstructions to rational points
Surfaces
Universes
Other kinds of fields
Properties under base extension
Bibliography
Index