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Field name	Details
Dewey Class	516.36
Title	Geometry of Harmonic Maps ([EBook]) / by Yuanlong Xin.
Author	Xin, Yuanlong. , 1943-
Other name(s)	SpringerLink (Online service)
Publication	Boston, MA : Birkhäuser , 1996.
Physical Details	X, 246 pages : online resource.
Series	Progress in nonlinear differential equations and their applications ; 23
ISBN	9781461240846
Summary Note	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.:
Contents note	I. Introduction -- 1.1 Vector Bundles -- 1.2 Harmonic Maps -- 1.3 A Bochner Type Formula -- 1.4 Basic Properties of Harmonic Maps -- II. Conservation Law -- 2.1 Stress-Energy Tensor and Conservation Law -- 2.2 Monotonicity Formula -- 2.3 Applications of Conservation Law to Liouville type Theorems -- 2.4 Further Generalizations -- III. Harmonic Maps and Gauss Maps -- 3.1 Generalized Gauss Maps -- 3.2 Cone-like Harmonic Maps -- 3.3 Generalized Maximum Principle -- 3.4 Estimates of Image Diameter and its Applications -- 3.5 Gauss Image of a Space-Like Hypersurface in Minkowski Space -- 3.6 Gauss Image of a Space-Like Submanifold in Pseudo-Euclidean Space -- IV. Harmonic Maps and Holomorphic Maps -- 4.1 Partial Energies -- 4.2 Harmonicity of Holomorphic Maps -- 4.3 Holomorphicity of Harmonic Maps -- V. Existence, Nonexistence and Regularity -- 5.1 Direct Method of the Calculus of Variations -- 5.2 Regularity Theorems -- 5.3 Nonexistence and Existence -- 5.4 Regularity Results of Harmonic Maps into Positively Curved Manifolds -- VI. Equivariant Harmonic Maps -- 6.1 Riemannian Submersions and Equivariant Harmonic Maps -- 6.2 Reduction Theorems -- 6.3 Equivariant Variational Formulas -- 6.4 On Harmonic Representatives of ?m(Sm) -- 6.5 Harmonic Maps via Isoparametric Maps -- 6.6 Harmonic Maps of Projective Spaces -- 6.7 Equivariant Boundary Value Problems -- References.
System details note	Online access to this digital book is restricted to subscription institutions through IP address (only for SISSA internal users)
Internet Site	http://dx.doi.org/10.1007/978-1-4612-4084-6
Links to Related Works	Subject References: Continuum Mechanics . Differential Geometry . Functions of complex variables . Harmonic maps . Partial differential equations . Probabilities . Probability theory and stochastic processes . Authors: Xin, Yuanlong. 1943- . Corporate Authors: SpringerLink (Online service) . Series: Progress in nonlinear differential equations and their applications . Classification: 516.36 .

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Geometry of Harmonic Maps

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