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Local Systems in Algebraic-Arithmetic Geometry

  • Book
  • © 2023

Overview

Authors:
  1. Hélène Esnault

    1. Institut für Mathematik, Freie Universität Berlin, Berlin, Germany

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  • (Over)view on the relation between local systems in complex algebraic geometry and in arithmetic geometry
  • Discusses deep conjectures that are presently out of reach
  • Proposes sub-conjectures that might be accessible

Part of the book series: Lecture Notes in Mathematics (LNM, volume 2337)

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Table of contents (10 chapters)

  1. Front Matter

    Pages i-vii
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  2. Lecture 1: General Introduction

    • Hélène Esnault
    Pages 1-7

  3. Lecture 2: Kronecker’s Rationality Criteria and Grothendieck’s p-Curvature Conjecture

    • Hélène Esnault
    Pages 9-17

  4. Lecture 3: Malčev-Grothendieck’s Theorem, Its Variants in Characteristic \(p>0\), Gieseker’s Conjecture, de Jong’s Conjecture, and the One to Come

    • Hélène Esnault
    Pages 19-21

  5. Lecture 4: Interlude on Some Similarity Between the Fundamental Groups in Characteristic 0 and \(p>0\)

    • Hélène Esnault
    Pages 23-30

  6. Lecture 5: Interlude on Some Difference Between the Fundamental Groups in Characteristic 0 and \(p>0\)

    • Hélène Esnault
    Pages 31-36

  7. Lecture 6: Density of Special Loci

    • Hélène Esnault
    Pages 37-52

  8. Lecture 7: Companions, Integrality of Cohomologically Rigid Local Systems and of the Betti Moduli Space

    • Hélène Esnault
    Pages 53-65

  9. Lecture 8: Rigid Local Systems and F-Isocrystals

    • Hélène Esnault
    Pages 67-73

  10. Lecture 9: Rigid Local Systems, Fontaine-Laffaille Modules and Crystalline Local Systems

    • Hélène Esnault
    Pages 75-82

  11. Lecture 10: Comments and Questions

    • Hélène Esnault
    Pages 83-86

  12. Back Matter

    Pages 87-94
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Keywords

About this book

The topological fundamental group of a smooth complex algebraic variety is poorly understood. One way to approach it is to consider its complex linear representations modulo conjugation, that is, its complex local systems. A fundamental problem is then to single out the complex points of such moduli spaces which correspond to geometric systems, and more generally to identify geometric subloci of the moduli space of local systems with special arithmetic properties. Deep conjectures have been made in relation to these problems. This book studies some consequences of these conjectures, notably density, integrality and crystallinity properties of some special loci.

This monograph provides a unique compelling and concise overview of an active area of research and is useful to students looking to get into this area. It is of interest to a wide range of researchers and is a useful reference for newcomers and experts alike.

Authors and Affiliations

  • Institut für Mathematik, Freie Universität Berlin, Berlin, Germany

    Hélène Esnault

About the author

Hélène Esnault is an emeritus Einstein Professor at the Freie Universität Berlin. She is currently a part time Professor at the University of Copenhagen and an associate part time Professor at Harvard University. She is working in the field of algebraic and arithmetic geometry. She established bridges between the analytic and arithmetic theories comprising for example the study of vanishing theorems, of rational points over finite fields, of complex and l-adic local systems, of analytic and arithmetic crystals, of algebraic cycles. She was awarded numerous prizes, including the Cantor medal (2019), and several honorary degrees, including the one of the University of Chicago (2023) for her "vision of algebraic geometry that touches upon most of the active branches of that vast field but is nevertheless recognizable her own."

Bibliographic Information

  • Book Title: Local Systems in Algebraic-Arithmetic Geometry

  • Authors: Hélène Esnault

  • Series Title: Lecture Notes in Mathematics

  • DOI: https://doi.org/10.1007/978-3-031-40840-3

  • Publisher: Springer Cham

  • eBook Packages: Mathematics and Statistics, Mathematics and Statistics (R0)

  • Copyright Information: The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2023

  • Softcover ISBN: 978-3-031-40839-7Published: 20 September 2023

  • eBook ISBN: 978-3-031-40840-3Published: 19 September 2023

  • Series ISSN: 0075-8434

  • Series E-ISSN: 1617-9692

  • Edition Number: 1

  • Number of Pages: VII, 94

  • Number of Illustrations: 15 b/w illustrations

  • Topics: Algebraic Geometry

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