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Preface

Published online by Cambridge University Press:  06 August 2010

Laurent Saloff-Coste
Affiliation:
Cornell University, New York
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Summary

These notes originated from a graduate course given at Cornell University during the fall of 1998. One of the aims of the course was to present Sobolev inequalities and some of their applications in the context of analysis on manifolds—including Harnack inequalities and heat kernel estimates—to an audience not necessarily very familiar with analysis in general and Sobolev inequalities in particular. The first part (Chapters 1–2) introduces the reader to Sobolev inequalities in ℝn. An important application, Moser's proof of the elliptic Harnack inequality for uniformly elliptic divergence form second order differential operators, is treated in detail. In the second part (Chapters 3–4), Sobolev inequalities on complete non-compact Riemannian manifolds are discussed: What is their meaning and when do they hold true? How does one prove them? This discussion is illustrated by the treatment of some explicit examples. In the third and last part, Chapter 5, families of local Sobolev and Poincaré inequalities are introduced. These turn out to be crucial for taking full advantage of Sobolev inequality techniques on Riemannian manifolds. For instance, complete Riemannian manifolds satisfying a scale-invariant parabolic Harnack inequality are characterized in terms of Poincaré inequalities and volume growth. These notes give the first detailed exposition of this fundamental result.

We warn the reader that no effort has been made to include a comprehensive bibliography. Many important papers related to the topics presented in these notes are not mentioned. Actually, the literature on Sobolev inequalities is so vast that it would certainly be difficult to list it all.

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Publisher: Cambridge University Press
Print publication year: 2001

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  • Preface
  • Laurent Saloff-Coste, Cornell University, New York
  • Book: Aspects of Sobolev-Type Inequalities
  • Online publication: 06 August 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511549762.001
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  • Preface
  • Laurent Saloff-Coste, Cornell University, New York
  • Book: Aspects of Sobolev-Type Inequalities
  • Online publication: 06 August 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511549762.001
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Preface
  • Laurent Saloff-Coste, Cornell University, New York
  • Book: Aspects of Sobolev-Type Inequalities
  • Online publication: 06 August 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511549762.001
Available formats
×