Torsors And Rational Points
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Torsors and Rational Points
Author | : Alexei Skorobogatov |
Publsiher | : Cambridge University Press |
Total Pages | : 197 |
Release | : 2001-07-05 |
Genre | : Mathematics |
ISBN | : 9780521802376 |
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This book, first published in 2001, is a complete and coherent exposition of the theory and applications of torsors to rational points.
Torsors tale Homotopy and Applications to Rational Points
Author | : Alexei N. Skorobogatov |
Publsiher | : Cambridge University Press |
Total Pages | : 470 |
Release | : 2013-04-18 |
Genre | : Mathematics |
ISBN | : 9781107245266 |
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Torsors, also known as principal bundles or principal homogeneous spaces, are ubiquitous in mathematics. The purpose of this book is to present expository lecture notes and cutting-edge research papers on the theory and applications of torsors and étale homotopy, all written from different perspectives by leading experts. Part one of the book contains lecture notes on recent uses of torsors in geometric invariant theory and representation theory, plus an introduction to the étale homotopy theory of Artin and Mazur. Part two of the book features a milestone paper on the étale homotopy approach to the arithmetic of rational points. Furthermore, the reader will find a collection of research articles on algebraic groups and homogeneous spaces, rational and K3 surfaces, geometric invariant theory, rational points, descent and the Brauer–Manin obstruction. Together, these give a state-of-the-art view of a broad area at the crossroads of number theory and algebraic geometry.
Torsors Etale Homotopy and Applications to Rational Points
![Torsors Etale Homotopy and Applications to Rational Points](https://youbookinc.com/wp-content/uploads/2024/06/cover.jpg)
Author | : Alexei Skorobogatov |
Publsiher | : Unknown |
Total Pages | : 471 |
Release | : 2014-05-14 |
Genre | : MATHEMATICS |
ISBN | : 1107250552 |
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Lecture notes and research articles on the use of torsors and etale homotopy in algebraic and arithmetic geometry.
Torsors tale Homotopy and Applications to Rational Points
![Torsors tale Homotopy and Applications to Rational Points](https://youbookinc.com/wp-content/uploads/2024/06/cover.jpg)
Author | : Alexei Skorobogatov |
Publsiher | : Unknown |
Total Pages | : 135 |
Release | : 2013 |
Genre | : Algebra |
ISBN | : 110724806X |
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Lecture notes and research articles on the use of torsors and étale homotopy in algebraic and arithmetic geometry.
Rational Points on Varieties
Author | : Bjorn Poonen |
Publsiher | : American Mathematical Society |
Total Pages | : 357 |
Release | : 2023-08-10 |
Genre | : Mathematics |
ISBN | : 9781470474584 |
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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. 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-Thélène, Université Paris-Sud A beautiful subject, handled by a master. —Joseph Silverman, Brown University
Torsors tale Homotopy and Applications to Rational Points
Author | : Alexei Skorobogatov |
Publsiher | : Cambridge University Press |
Total Pages | : 470 |
Release | : 2013-04-18 |
Genre | : Mathematics |
ISBN | : 9781107616127 |
Download Torsors tale Homotopy and Applications to Rational Points Book in PDF, Epub and Kindle
Lecture notes and research articles on the use of torsors and étale homotopy in algebraic and arithmetic geometry.
Rational Points and Arithmetic of Fundamental Groups
Author | : Jakob Stix |
Publsiher | : Springer |
Total Pages | : 257 |
Release | : 2012-10-19 |
Genre | : Mathematics |
ISBN | : 9783642306747 |
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The section conjecture in anabelian geometry, announced by Grothendieck in 1983, is concerned with a description of the set of rational points of a hyperbolic algebraic curve over a number field in terms of the arithmetic of its fundamental group. While the conjecture is still open today in 2012, its study has revealed interesting arithmetic for curves and opened connections, for example, to the question whether the Brauer-Manin obstruction is the only one against rational points on curves. This monograph begins by laying the foundations for the space of sections of the fundamental group extension of an algebraic variety. Then, arithmetic assumptions on the base field are imposed and the local-to-global approach is studied in detail. The monograph concludes by discussing analogues of the section conjecture created by varying the base field or the type of variety, or by using a characteristic quotient or its birational analogue in lieu of the fundamental group extension.
Arithmetic Geometry
Author | : Clay Mathematics Institute. Summer School |
Publsiher | : American Mathematical Soc. |
Total Pages | : 570 |
Release | : 2009 |
Genre | : Mathematics |
ISBN | : 9780821844762 |
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Based on survey lectures given at the 2006 Clay Summer School on Arithmetic Geometry at the Mathematics Institute of the University of Gottingen, this tile is intended for graduate students and recent PhD's. It introduces readers to modern techniques and conjectures at the interface of number theory and algebraic geometry.