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          | 內容簡介: |   
          | 1 Fourier series
來源:香港大書城megBookStore,http://www.megbook.com.hk 
 
 Piecewise Continuous Functions
 
 Fourier Cosine Series 4
 
 Examples 6
 1 Fourier series
 
 
 Piecewise Continuous Functions
 
 Fourier Cosine Series 4
 
 Examples 6
 
 Fourier Sine Series 9
 
 Examples 10
 
 Fourier Series 14
 
 3 Partial Differential Equations of Physics
 
 
 Linear Boundary Value Problems 60
 
 One-Dimensional Heat Equation 62
 
 Related Equations 65
 
 Laplacian in Cylindrical and Spherical Coordinates 67
 
 Derivations 70
 
 Boundary Conditions 73
 
 Duhamel''s Principle 75
 
 A Vibrating String 80
 
 Vibrations of Bars and Membranes 83
 
 General Solution of a Wave Equation 87
 
 Types of Equations and Boundary Conditions 92
 
 4 The Fourier method
 
 
 Linear Operators
 
 Principle of Superposition 97
 
 Examples 99
 
 Eigenvalues and Eigenfunctions 102
 
 A Temperature Problem 104
 
 A Vibrating String Problem 107
 
 Historical Development 111
 
 
 5 Boundary value Problems
 
 A Slab with Faces at Prescribed Temperatures 114
 
 Related Temperature Problems 118
 
 Temperatures in a Sphere 122
 
 A Slab with Internally Generated Heat 125
 
 Steady Temperatures in Rectangular Coordinates 131
 
 Steady Temperatures in Cylindrical Coordinates 136
 
 A String with Prescribed Initial Conditions 140
 
 Resonance 146
 
 An elastic Bar 149
 
 Double fourier series 152
 
 Periodic Boundary Conditions 155
 Examples 16
 
 Adaptations to Other Intervals 20
 
 2 Convergence of Fourier Series
 
 
 One-Sided Derivatives 25
 
 A Property of Fourier Coefficients 28
 
 Two Lemmas 31
 
 A Fourier Theorem 35
 
 A Related Fourier Theorem 38
 
 Examples 39
 
 Convergence on Other Intervals 43
 
 A Lemma 47
 
 Absolute and Uniform Convergence of Fourier Series 49
 
 The Gibbs phenomenon 51
 
 Differentiation of Fourier Series 54
 
 Integration of Fourier Series 55
 6 Fourier Integrals and Applications
 
 
 The Fourier Integral Formula 161
 
 Dirichlet''s Integral 163
 
 Two Lemmas 165
 
 A Fourier Integral Theorem 169
 
 The Cosine and Sine Integrals 173
 
 Some eigenvalue problems on Unbounded Intervals 174
 
 More on Superposition of Solutions 177
 
 Steady Temperatures in a Semi-Infinite Strip 179
 
 Temperatures in a semi-Infinite Solid 182
 
 Temperatures in an Unlimited Medium 187
 
 
 7 Orthonormal sets
 
 
 Inner Products and Orthonormal sets 189
 
 Examples 191
 
 Generalized Fourier Series 195
 
 Examples 196
 
 Best Approximation in the Mean 200
 
 Bessel''s Inequality and Parseval,s Equation 203
 
 Applications to Fourier Series 205
 
 8 Sturm-Liouville Problems and Applications
 
 Regular Sturm-Liouville Problems 210
 
 Modifications 212
 
 Orthogonal Eigenfunctions and Real Eigenvalues 213
 
 Real-Valued Eigenfunctions 218
 
 Nonnegative Eigenvalues 220
 
 Methods of solution 221
 
 Examples of Eigenfunction Expansions 227
 
 A Temperature Problem in Rectangular Coordinates 234
 
 Steady Temperatures 238
 
 Other Coordinates 242
 
 A Modification of the Method 245
 
 Another modification 249
 
 A Vertically Hung Elastic Bar 252
 9 Bessel Functions and Applications
 
 
 The Gamma Function 261
 
 Bessel Functions Jvx 263
 
 Solutions when v=0.1.2
 
 Recurrence Relations 273
 
 Bessel''s Integral Form 277
 
 Some Consequences of the Integral Forms 279
 
 The Zeros of Jnx 283
 
 Zeros of related Functions 286
 
 Orthogonal Sets of Bessel Functions 288
 
 Proof of the Theorems 290
 
 Two Lemmas 295
 
 Fourier-Bessel Series 298
 
 Examples 300
 
 Temperatures in a Long Cylinder 305
 
 A Temperature Problem in Shrunken Fittings 312
 
 Internally Generated Heat 314
 
 Temperatures in a Long Cylindrical Wedge 319
 
 Vibration of a Circular Membrane 321
 
 10 Legendre Polynomials and Applications
 
 
 Solutions of Legendre''s Equation 326
 
 Legendre Polynomials 328
 
 Rodrigues'' Formula 333
 
 Laplace''s Integral Form 336
 
 Some Consequences of the Integral Form 338
 
 Orthogonality of Legendre Polynomials 341
 
 Normalized Legendre Polynomials 343
 
 Legendre Series 345
 
 The Eigenfunctions Pncos 8 350
 
 Dirichlet Problems in Spherical Regions 352
 
 Steady Temperatures in a Hemisphere 356
 
 11 Verification of Solutions and Uniqueness
 
 
 Abel''s Test for Uniform Convergence 362
 
 Verification of Solution of Temperature Problem 365
 
 Uniqueness of Solutions of the Heat Equation 368
 
 Verification of Solution of Vibrating String Problem 372
 
 Uniqueness of Solutions of the Wave Equation 374
 
 Appendixes
 
 Bibliography 377
 
 Some Fourier Series Expansions 381
 
 Solutions of Some Regular Sturm-Liouville Problems 383
 
 Some Fourier-Bessel Series Expansions 387
 
 
 Index
 
 编辑手记
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