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CONTENTS

 

Preface to the English Edition 

v

Preface to the Russian Edition

 vii

Introduction

1

1   Metric Spaces

7

 

1.1         Preliminaries

7

 

1.2         Some Metric Spaces of Functions

12

 

1.3         Energy Spaces   

14

 

1.4         Sets in a Metric Space

18

 

1.5         Convergence in a Metric Space

18

 

1.6         Completeness

19

 

1.7         The Completion Theorem

21

 

1.8         The Lebesgue Integral and the Space Lp

23

 

1.9         Banach and Hubert Spaces

27

 

1.10     Some Energy Spaces

32

 

1.11     Sobolev Spaces

47

 

1.12     Introduction to Operators

50

 

1.13     Contraction Mapping Principle

52

 

1.14     Generalized Solutions in Mechanics

57

 

1.15     Separability 62

62

 

1.16     Compactness, Hausdorff Criterion.     

67

 

1.17     Arzela's Theorem and Its Applications

70

 

1.18     Approximation Theory

76

 

1.19     Decomposition Theorem, Riesz Representation

79

 

1.20     Existence of Energy Solutions

83

 

1.21     The Problem of Elastico-Plasticity

87

 

1.22     Bases and Complete Systems

94

 

1.23     Weak Convergence in a Hubert Space

99

 

1.24     Ritz and Bubnov-Galerkin Methods  

109

 

1.25     Curvilinear Coordinates, Non-Homogeneous Boundary Conditions

111

 

1.26  The Bramble-Hilbert Lemma and Its Applications

114

2    Elements of the Theory of Operators 

121

 

2.1         Spaces of Linear Operators

121

 

2.2     Banach-Steinhaus Principle

124

 

2.3         The Inverse Operator

126

 

2.4     Closed Operators

129

 

2.5     The Notion of Adjoint Operator

132

 

2.6     Compact Operators

139

 

2.7     Compact Operators in Hilbert Space

144

 

2.8     Functions Taking Values in a Banach Space

146

 

2.9     Spectrum of Linear Operators

149

 

2.10  Resolvent Set of a Closed Linear Operator

152

 

2.11     Spectrum of Compact Operators in Hilbert Space

154

 

2.12Analytic Nature of the Resolvent of a Compact Linear Operator

162

 

2.13  Spectrum of Holomorphic Compact Operator Function

164

 

2.14  Spectrum of Self-Adjoint Compact Linear Operator in Hilbert Space

166

 

2.15     Some Applications of Spectral Theory

171

 

2.16     Courant's Mmimax Principle

175

3    Elements of Nonlinear Functional Analysis   

177

 

3.1         Frechet and Gateaux Derivatives

177

 

3.2         Liapunov-Schmidt Method

182

 

3.3     Critical Points of a Functional

184

 

3.4     Von Karman Equations of a Plate

189

 

3.5         Buckling of a Thin Elastic Shell

195

 

3.6     Equilibrium of Elastic Shallow Shells

204

 

3.7     Degree Theory

209

 

3.8         Steady-State Flow of Viscous Liquid

211

Appendix: Hints for Selected Problems

219

References

231
Index 235

                                                                               

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