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Random Walks on Reductive Groups

  • Book
  • © 2016

Overview

  • Provides a self-contained introduction to the products of independent identically distributed random matrices and to their Lyapunov exponents
  • Explains the relevance of the theory of reductive algebraic groups and the theory of bounded operators in Banach spaces to the study of random matrices
  • Contains a proof of the Local Limit Theorem for the norm of the products of independent identically distributed random matrices
  • Includes supplementary material: sn.pub/extras

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Table of contents (17 chapters)

  1. The Law of Large Numbers

  2. Reductive Groups

  3. The Central Limit Theorem

  4. The Local Limit Theorem

Keywords

About this book

The classical theory of random walks describes the asymptotic behavior of sums of independent identically distributed random real variables. This book explains the generalization of this theory to products of independent identically distributed random matrices with real coefficients.


Under the assumption that the action of the matrices is semisimple – or, equivalently, that the Zariski closure of the group generated by these matrices is reductive - and under suitable moment assumptions, it is shown that the norm of the products of such random matrices satisfies a number of classical probabilistic laws.


This book includes necessary background on the theory of reductive algebraic groups, probability theory and operator theory, thereby providing a modern introduction to the topic.

Reviews

“Benoist and Quint have written an excellent text, one that will surely become a standard reference to introduce students to the fascinating nonabelian extension of the now-classical study of random walks. … I congratulate the authors on their well-written and timely offering, and strongly recommend that libraries order a copy of this excellent text!” (Tushar Das, MAA Reviews, November, 2017)

“This book is an exposition of the tools and perspectives needed to reach the current frontier of research in the field of random matrix products… This is a technical subject, drawing on tools from a diverse range of topics… The authors take time to explain everything at a reasonable pace.” (Radhakrishnan Nair, Mathematical Reviews)


 “This reviewer does not hesitate to consider this book as exceptional.” (Marius Iosifescu, zbMATH, 1366.60002)


Authors and Affiliations

  • Université Paris-Sud , Orsay, France

    Yves Benoist

  • Institut de Mathématiques de Bordeaux, Université Bordeaux 1 , Talence Cedex, France

    Jean-François Quint

Bibliographic Information

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