Fourier Series and Boundary Value Problems
Fourier Series and Boundary Value Problems

Fourier Series and Boundary Value Problems

8th Edition
By James Brown and Ruel Churchill
ISBN10: 007803597X
ISBN13: 9780078035975
Copyright: 2012

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Program Details


1 Fourier Series

Piecewise Continuous Functions

Fourier Cosine Series


Fourier Sine Series


Fourier Series


Adaptations to Other Intervals

2 Convergence of Fourier Series

One-Sided Derivatives

A Property of Fourier Coefficients

Two Lemmas

A Fourier Theorem

A Related Fourier Theorem


Convergence on Other Intervals

A Lemma

Absolute and Uniform Convergence of Fourier Series

The Gibbs Phenomenon

Differentiation of Fourier Series

Integration of Fourier Series

3 Partial Differential Equations of Physics

Linear Boundary Value Problems

One-Dimensional Heat Equation

Related Equations

Laplacian in Cylindrical and Spherical Coordinates


Boundary Conditions

Duhamel's Principle

A Vibrating String

Vibrations of Bars and Membranes

General Solution of the Wave Equation

Types of Equations and Boundary Conditions

4 The Fourier Method

Linear Operators

Principle of Superposition


Eigenvalues and Eigenfunctions

A Temperature Problem

A Vibrating String Problem

Historical Development

5 Boundary Value Problems

A Slab with Faces at Prescribed Temperatures

Related Temperature Problems

Temperatures in a Sphere

A Slab with Internally Generated Heat

Steady Temperatures in Rectangular Coordinates

Steady Temperatures in Cylindrical Coordinates

A String with Prescribed Initial Conditions


An Elastic Bar

Double Fourier Series

Periodic Boundary Conditions

6 Fourier Integrals and Applications

The Fourier Integral Formula

Dirichlet's Integral

Two Lemmas

A Fourier Integral Theorem

The Cosine and Sine Integrals

Some Eigenvalue Problems on Undounded Intervals

More on Superposition of Solutions

Steady Temperatures in a Semi-Infinite Strip

Temperatures in a Semi-Infinite Solid

Temperatures in an Unlimited Medium

7 Orthonormal Sets

Inner Products and Orthonormal Sets


Generalized Fourier Series


Best Approximation in the Mean

Bessel's Inequality and Parseval's Equation

Applications to Fourier Series

8 Sturm-Liouville Problems and Applications

Regular Sturm-Liouville Problems


Orthogonality of Eigenfunctions adn Real Eigenvalues

Real-Valued Eigenfunctions

Nonnegative Eigenvalues

Methods of Solution

Examples of Eigenfunction Expansions

A Temperature Problem in Rectangular Coordinates

Steady Temperatures

Other Coordinates

A Modification of the Method

Another Modification

A Vertically Hung Elastic Bar

9 Bessel Functions and Applications

The Gamma Function

Bessel Functions Jn(x)

Solutions When v = 0,1,2,...

Recurrence Relations

Bessel's Integral Form

Some Consequences of the Integral Forms

The Zeros of Jn(x)

Zeros of Related Functions

Orthogonal Sets of Bessel Functions

Proof of the Theorems

Two Lemmas

Fourier-Bessel Series


Temperatures in a Long Cylinder

A Temperature Problem in Shrunken Fittings

Internally Generated Heat

Temperatures in a Long Cylindrical Wedge

Vibration of a Circular Membrane

10 Legendre Polynomials and Applications

Solutions of Legendre's Equation

Legendre Polynomials

Rodrigues' Formula

Laplace's Integral Form

Some Consequences of the Integral Form

Orthogonality of Legendre Polynomials

Normalized Legendre Polynomials

Legendre Series

The Eigenfunctions Pn(cos θ)

Dirichlet Problems in Spherical Regions

Steady Temperatures in a Hemisphere

11 Verification of Solutions and Uniqueness

Abel's Test for Uniform Convergence

Verification of Solution of Temperature Problem

Uniqueness of Solutions of the Heat Equation

Verification of Solution of Vibrating String Problem

Uniqueness of Solutions of the Wave Equation



Some Fourier Series Expansions

Solutions of Some Regular Sturm-Liouville Problems

Some Fourier-Bessel Series Expansions