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Birkhäuser

Geometry of Harmonic Maps

  • Book
  • © 1996

Overview

Authors:
  1. Yuanlong Xin

    1. Institute of Mathematics, Fudan University, China

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Part of the book series: Progress in Nonlinear Differential Equations and Their Applications (PNLDE, volume 23)

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Table of contents (6 chapters)

  1. Front Matter

    Pages i-x
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  2. Introduction

    • Yuanlong Xin
    Pages 1-38

  3. Conservation Law

    • Yuanlong Xin
    Pages 39-60

  4. Harmonic maps and gauss maps

    • Yuanlong Xin
    Pages 61-96

  5. Harmonic Maps and Holomorphic Maps

    • Yuanlong Xin
    Pages 97-119

  6. Existence, Nonexistence and Regularity

    • Yuanlong Xin
    Pages 121-146

  7. Equivariant Harmonic Maps

    • Yuanlong Xin
    Pages 147-226

  8. Back Matter

    Pages 227-245
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Keywords

About this book

Harmonic maps are solutions to a natural geometrical variational prob­ lem. This notion grew out of essential notions in differential geometry, such as geodesics, minimal surfaces and harmonic functions. Harmonic maps are also closely related to holomorphic maps in several complex variables, to the theory of stochastic processes, to nonlinear field theory in theoretical physics, and to the theory of liquid crystals in materials science. During the past thirty years this subject has been developed extensively. The monograph is by no means intended to give a complete description of the theory of harmonic maps. For example, the book excludes a large part of the theory of harmonic maps from 2-dimensional domains, where the methods are quite different from those discussed here. The first chapter consists of introductory material. Several equivalent definitions of harmonic maps are described, and interesting examples are presented. Various important properties and formulas are derived. Among them are Bochner-type formula for the energy density and the second varia­ tional formula. This chapter serves not only as a basis for the later chapters, but also as a brief introduction to the theory. Chapter 2 is devoted to the conservation law of harmonic maps. Em­ phasis is placed on applications of conservation law to the mono tonicity formula and Liouville-type theorems.

Authors and Affiliations

  • Institute of Mathematics, Fudan University, China

    Yuanlong Xin

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