Preface |
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1 Differentiable Manifolds |
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1 | (16) |
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2 | (2) |
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1.2 Vector fields on manifolds |
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4 | (3) |
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1.3 Maps between manifolds |
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7 | (2) |
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9 | (1) |
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10 | (3) |
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1.6 Integrable distributions and Frobenius' theorem |
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13 | (4) |
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2 Riemannian and Pseudo-Riemannian Manifolds |
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17 | (24) |
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2.1 Basic definitions and examples |
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18 | (3) |
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2.2 Levi-Civita connection |
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21 | (5) |
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2.3 Riemann curvature tensor |
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26 | (3) |
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29 | (2) |
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2.5 Ricci and scalar curvatures |
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31 | (1) |
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2.6 Lie derivative, gradient, Hessian and Laplacian |
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32 | (2) |
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2.7 Conformal changes of metric and Weyl's theorem |
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34 | (2) |
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2.8 Some model spaces in Riemannian geometry |
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36 | (5) |
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36 | (1) |
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37 | (1) |
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2.8.3 Thurston's eight 3-dimensional geometries |
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37 | (2) |
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2.8.4 Bianchi-Cartan-Vranceanu spaces |
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39 | (2) |
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41 | (18) |
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3.1 Cartan-Janet's and Nash's embedding theorems |
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42 | (1) |
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3.2 Formulas of Gauss and Weingarten |
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43 | (2) |
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3.3 Self-adjoint linear operators |
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45 | (3) |
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3.4 Fundamental equations of Gauss, Codazzi and Ricci |
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48 | (2) |
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3.5 Totally geodesic submanifolds and reduction theorem |
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50 | (3) |
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3.6 Totally umbilical submanifolds |
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53 | (3) |
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3.7 A universal optimal inequality |
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56 | (1) |
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3.8 Cartan's structure equations |
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57 | (2) |
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4 Biharmonic Curves and Surfaces in Pseudo-Euclidean Spaces |
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59 | (50) |
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60 | (2) |
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4.2 Biharmonic submanifolds and Chen's conjecture |
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62 | (3) |
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4.3 Submanifolds of finite type |
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65 | (2) |
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4.4 Minimal Polynomial Criterion |
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67 | (3) |
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4.5 A variational minimal principle |
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70 | (1) |
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4.6 Finite type and biharmonicity |
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71 | (1) |
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4.7 Biharmonic curves in E™ |
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72 | (2) |
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4.8 Biharmonic surfaces in |
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74 | (3) |
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4.9 Biharmonic surfaces in E&trae; |
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77 | (20) |
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4.9.1 Surfaces with constant mean curvature |
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78 | (2) |
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4.9.2 Marginally trapped surfaces |
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80 | (2) |
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4.9.3 Quasi-minimal Lorentz surfaces |
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82 | (7) |
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4.9.4 Surfaces with constant Gauss curvature |
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89 | (8) |
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4.10 Classification of minimal Lorentz surfaces in Emr |
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97 | (3) |
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4.11 Biharmonic surfaces with parallel normalized mean curvature vector |
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100 | (2) |
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4.12 Biharmonic surfaces with parallel mean curvature vector in pseudo-Euclidean spaces |
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102 | (7) |
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5 Some Progress on Chen's Biharmonic Conjecture |
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109 | (42) |
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5.1 Hypersurfaces with two distinct principal curvatures |
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109 | (3) |
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5.2 Hypersurfaces with three distinct principal curvatures |
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112 | (12) |
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5.3 Biharmonic ideal hypersurfaces |
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124 | (12) |
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5.4 Hypersurfaces of cohomogeneity two |
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136 | (8) |
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5.5 Weakly convex hypersurfaces |
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144 | (1) |
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5.6 Pseudo-umbilical biharmonic submanifolds |
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144 | (2) |
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5.7 Properly immersed biharmonic submanifolds |
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146 | (2) |
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5.8 Study of biharmonic conjecture via Chen's flow |
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148 | (2) |
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5.9 Biharmonic hypersurfaces in pseudo-Euclidean spaces |
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150 | (1) |
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6 Some Progress on Generalized Chen's Conjecture |
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151 | (26) |
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6.1 Equations of biharmonic submanifolds |
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152 | (4) |
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6.2 Some further applications of biharmonic equations |
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156 | (2) |
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6.3 Hypersurfaces with finite total mean curvature |
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158 | (5) |
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6.4 Submanifolds satisfying a growth condition |
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163 | (1) |
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6.5 Submanifolds with volume growth condition |
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164 | (3) |
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6.6 Counterexamples to generalize Chen's conjecture |
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167 | (10) |
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7 Biharmonic Submanifolds in Spheres |
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177 | (54) |
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7.1 Characterizations and examples |
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177 | (4) |
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7.2 Type numbers of biharmonic submanifolds in spheres |
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181 | (2) |
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7.3 Biharmonic hypersurfaces with at most three distinct principal curvatures |
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183 | (10) |
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7.4 Biharmonic hypersurfaces in spheres with two distinct principal curvatures |
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193 | (3) |
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7.5 Biharmonic isoparametric and biharmonic Dupin hypersurfaces in spheres |
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196 | (4) |
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7.6 Biharmonic hypersurfaces in spheres satisfying a condition on |A| |
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200 | (4) |
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7.7 Biharmonic hypersurfaces with non-negative sectional curvature in spheres |
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204 | (4) |
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7.8 Biharmonic hypersurfaces with constant scalar curvature in spheres |
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208 | (14) |
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7.9 Biharmonic submanifolds of spheres with parallel normalized mean curvature vector |
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222 | (9) |
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8 Biharmonic Submanifolds in Some Other Model Spaces |
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231 | (34) |
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8.1 Biharmonic submanifolds in hyperbolic spaces |
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231 | (4) |
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8.2 Biharmonic submanifolds of complex space forms |
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235 | (3) |
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8.3 Hopf fibration and biharmonic real hypersurfaces of CPm |
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238 | (4) |
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8.4 Biharmonic submanifolds of Kaehler manifolds |
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242 | (4) |
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8.5 Biharmonic hypersurfaces in conformally flat manifolds |
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246 | (5) |
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8.6 Biharmonic surfaces of Bianchi-Cartan-Vranceanu spaces and of Thurston's geometries |
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251 | (8) |
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8.6.1 CMC biharmonic surfaces |
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251 | (6) |
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8.6.2 Totally umbilical biharmonic surfaces |
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257 | (2) |
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8.7 Biharmonic submanifolds of Sasakian space forms |
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259 | (6) |
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9 Harmonic Maps and Their Generalizations |
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265 | (56) |
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9.1 Harmonic maps and their equations |
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265 | (4) |
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9.2 Some important examples of harmonic maps |
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269 | (3) |
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9.3 The transformations of tension field under conformal changes of metrics |
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272 | (2) |
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9.3.1 Transformation of tension field under a conformal change of the domain metric |
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272 | (1) |
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9.3.2 Transformation of tension field under a conformal change of the metric in the target manifold |
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273 | (1) |
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9.4 Harmonic conformal immersions and submersions |
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274 | (4) |
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9.4.1 Harmonic conformal immersions |
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275 | (1) |
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9.4.2 Harmonic Riemannian submersions and harmonic morphisms |
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276 | (2) |
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9.5 The tension field of the composition map and harmonic maps into a sphere |
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278 | (7) |
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9.6 Second variation of the energy and Jacobi operator |
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285 | (1) |
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9.7 Maximum principle, Bochner formula, and Liouville theorems for harmonic maps |
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286 | (8) |
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9.7.1 Maximum principle and Liouville theorem for harmonic functions |
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286 | (3) |
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9.7.2 Bochner formula and Liouville theorems for harmonic maps |
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289 | (5) |
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9.8 P-harmonic maps and p-harmonic morphisms |
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294 | (10) |
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294 | (2) |
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9.8.2 P-harmonic morphisms |
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296 | (1) |
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9.8.3 P-harmonic functions and f-minimal hypersurfaces |
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297 | (7) |
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9.9 Oo-harmonic maps and co-harmonic morphisms |
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304 | (7) |
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9.9.1 ∞-Laplacian and ∞-harmonic functions |
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304 | (1) |
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305 | (1) |
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9.9.3 ∞-harmonic morphisms |
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306 | (3) |
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9.9.4 Some classifications of ∞-harmonic morphisms |
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309 | (2) |
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9.10 F-harmonic and F-harmonic maps |
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311 | (10) |
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311 | (2) |
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9.10.2 Exponentially harmonic maps |
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313 | (1) |
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314 | (1) |
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9.10.4 F-harmonic morphisms |
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315 | (6) |
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10 Biharmonic Maps Between Riemannian Manifolds |
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321 | (94) |
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10.1 Biharmonic map equation and some basic examples and problems |
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321 | (9) |
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10.2 Biharmonic maps from or into a product manifold |
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330 | (7) |
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10.2.1 Biharmonic maps from a product manifold |
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330 | (2) |
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10.2.2 Biharmonic maps by complete lifts and a direct sum construction |
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332 | (1) |
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10.2.3 Biharmonic maps into a product manifold |
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333 | (4) |
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10.3 Biharmonic maps between surfaces with warped product metrics |
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337 | (11) |
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10.4 Equivariant biharmonic maps between warped product manifolds |
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348 | (9) |
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10.5 Biharmonic maps into a sphere |
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357 | (18) |
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10.5.1 Biharmonic maps from a Riemannian manifold into a sphere |
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357 | (7) |
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10.5.2 Biharmonic maps from a torus into a sphere |
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364 | (6) |
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10.5.3 Some constructions and examples of maps from a torus into a 2-sphere |
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370 | (5) |
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10.6 Biharmonic maps between surfaces in conformal coordinates |
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375 | (9) |
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10.7 F-biharmonic and bi-f-harmonic maps |
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384 | (31) |
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10.7.1 Some basic relations among biharmonic, f-biharmonic and bi-f-harmonic maps |
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384 | (7) |
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10.7.2 Some nonexistence results on bi-f-harmonic and f-biharmonic maps |
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391 | (7) |
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10.7.3 F-biharmonic maps from a 2-sphere |
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398 | (8) |
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10.7.4 F-biharmonic submanifolds |
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406 | (9) |
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11 Biharmonic Conformal Maps |
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415 | (52) |
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11.1 Basics on conformal maps and some technical lemmas |
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417 | (6) |
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11.2 Biharmonic morphisms and generalized harmonic morphisms |
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423 | (9) |
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11.2.1 Biharmonic morphisms |
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423 | (3) |
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11.2.2 Generalized harmonic morphisms |
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426 | (6) |
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11.3 Biharmonic conformal and Riemannian submersions |
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432 | (9) |
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11.3.1 Biharmonic conformal submersions |
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432 | (1) |
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11.3.2 Biharmonic Riemannian submersions |
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433 | (5) |
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11.3.3 Biharmonic Riemannian submersions with 1-dimensional fibers |
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438 | (3) |
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11.4 Biharmonic conformal maps between manifolds of the same dimension |
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441 | (15) |
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11.4.1 Biharmonic equation for conformal maps between manifolds of the same dimension |
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442 | (3) |
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11.4.2 The link of biharmonicity to isoparametric functions, Sobolev embedding theorem and Yamabe equation |
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445 | (2) |
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11.4.3 Biharmonicity of Mobius transformations |
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447 | (2) |
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11.4.4 Biharmonic identity maps and metrics |
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449 | (4) |
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11.4.5 Biharmonic conformal maps from compact Einstein 4-manifolds |
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453 | (3) |
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11.5 Biharmonic conformal immersions |
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456 | (1) |
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11.6 Biharmonic conformal immersions of surfaces into 3-manifolds |
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457 | (7) |
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11.7 Biharmonicity and holomorphicity of conformal immersions |
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464 | (3) |
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12 Second Variation of Bienergy, Liouville-type and Unique Continuation Theorems |
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467 | (24) |
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12.1 Stress bienergy tensor and its applications |
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467 | (5) |
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12.2 Second variation of bienergy and stable biharmonic maps |
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472 | (5) |
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12.3 The Liouville-type theorems for biharmonic maps |
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477 | (6) |
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12.4 Unique continuation theorems for biharmonic maps |
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483 | (8) |
Bibliography |
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491 | (26) |
General Index |
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517 | (6) |
Author Index |
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523 | |