A Collection of Problems on Mathematical Physics

A Collection of Problems on Mathematical Physics is a translation from the Russian and deals with problems and equations of mathematical physics. The book contains problems and solutions. The book discusses problems on the derivation of equations and boundary condition. These Problems are arranged on the type and reduction to canonical form of equations in two or more independent variables. The equations of hyperbolic type concerns derive from problems on vibrations of continuous media and on electromagnetic oscillations. The book considers the statement and solutions of boundary value problems pertaining to equations of parabolic types when the physical processes are described by functions of two, three or four independent variables such as spatial coordinates or time. The book then discusses dynamic problems pertaining to the mechanics of continuous media and problems on electrodynamics. The text also discusses hyperbolic and elliptic types of equations. The book is intended for students in advanced mathematics and physics, as well as, for engineers and workers in research institutions.

Contenu

Translation Editor's Note

Preface

Chapter I. Classification and Reduction to Canonical Form of Second Order Partial Differential Equations

1. The Equation for a Function of Two Independent Variables a11+uxx+2a12uxy+a22uyy+b1ux+b2uy+cu = f(x, y)

2. The Equation with Variable Coefficients

3. The Equation with Constant Coefficients

4. The Equation with Constant Coefficients for a Function of n Independent Variables

Chapter II. Equations of Hyperbolic Type

1. Physical Problems Reducible to Equations of Hyperbolic Type; Statement of Boundary-Value Problems

2. Free Vibrations in a Non-Resistant Medium; Equations with Constant Coefficients

3. Forced Vibrations and Vibrations in a Resistant Medium; Equations with Constant Coefficients

4. Vibration Problems Leading to Equations with Continuous Variable Coefficients

5. Problems Leading to Equations with Discontinuous Coefficients And Similar Problems (Piecewise Homogeneous Media, etc.)

6. Similarity of Boundary-Value Problems

7. Method of Traveling Waves (D'Alembert's Method)

8. Problems for an Infinite String

9. Problems for a Semi-Infinite Region

10. Problems for an Infinite Line, Consisting of Two Homogeneous Semi-Infinite Lines

11. Problems for a Finite Segment

12. Method of Separation of Variables

13. Free Vibrations in a Non-Resistant Medium

14. Free Vibrations in a Resistant Medium

15. Forced Vibrations Under the Action of Distributed and Concentrated Forces in a Non-Resistant Medium and in a Resistant Medium

16. Vibrations with Inhomogeneous Media and Other Conditions Leading to Equations with Variable Coefficients; Calculations with Concentrated Forces and Masses

17. Method of Integral Representations

18. The Method of the Fourier Integral

19. Riemann's Method

Chapter III. Equations of Parabolic Type

1. Physical Problems Leading to Equations of Parabolic Type; Statement Of Boundary-Value Problems

2. Homogeneous Media; Equations with Constant Coefficients

3. Inhomogeneous Media; Equations with Variable Coefficients and Matching Conditions

4. Similarity of Boundary-Value Problems

5. Method of Separation of Variables

6. Homogeneous Isotropic Media. Equations with Constant Coefficients

7. Inhomogeneous Media. Equations with Variable Coefficients and Matching Conditions

8. Method of Integral Representations and Source Functions

9. Homogeneous Isotropic Media. Application of the Fourier Integral Transform to Problems on the Infinite Line and the Semi-Infinite Line

10. Homogeneous Isotropic Media. Calculation of Green's Functions

11. Inhomogeneous Media; Equations with Piecewise Continuous Coefficients and Matching Conditions

Chapter IV. Equations of Elliptic Type

1. Physical Problems Leading to Equations of Elliptic Type, and the Statement of Boundary-Value Problems

2. Boundary-Value Problems for Laplace's and Poisson's Equation in a Homogeneous Medium

3. Boundary-Value Problems for Laplace's Equation in Inhomogeneous Media

4. Simplest Problems for Laplace's and Poisson's Equations

5. Boundary-Value Problems for Laplace's Equation

6. Boundary-Value Problems for Poisson's Equation

7. The Source Function

8. The Source Function for Regions with Plane Boundaries

9. The Source Function for Regions with Spherical (Circular) and Plane Boundaries

10. The Source Function in Inhomogeneous Media

11. The Method of Separation of Variables

12. Boundary-Value Problems for a Circle, Ring and Sector

13. Boundary-Value Problems for Strips, Rectangles, Plane Layers and Parallelepipeds

14. Problems Requiring the Application of Cylindrical Functions

15. Problems Requiring the Application of Spherical and Cylindrical Functions

16. Potentials and Their Application

Chapter V. Equations of Parabolic Type

1. Physical Problems Leading to Equations of Parabolic Type; Statement of Boundary-Value Problems

2. The Method of Separation of Variables

3. Boundary-Value Problems Not Requiring the Application of Special Functions

4. Boundary-Value Problems Requiring the Application of Special Functions

5. The Method of Integral Representations

6. The Application of the Fourier Integral

7. The Formation and Application of Green's Functions

Chapter VI. Equations of Hyperbolic Type

1. Physical Problems Leading to Equations of Hyperbolic Type; Statement of Boundary-Value Problems

2. The Simplest Problems; Different Methods of Solution

3. The Method of Separation of Variables

4. Boundary-Value Problems Not Requiring the Application of Special Functions

5. Boundary-Value Problems Requiring the Application of Special Functions

6. The Method of Integral Representations

7. The Application of the Fourier Integral

8. Formation and Application of the Functions of the Effect of Concentrated Sources

Chapter VII. Equations of Elliptic Type u + cu = -f

1. Problems for the Equation u - x2u = -f

2. Some Problems on Natural Vibrations

3. Natural Vibrations of Strings and Rods

4. Natural Vibrations of Volumes

5. Propagation and Radiation of Sound

6. Point Source

7. Radiation of Membranes, Cylinders and Spheres

8. Diffraction by a Cylinder and Sphere

9. Steady-State Electromagnetic Vibrations

10. Maxwell's Equations. Potentials. Green-Ostrogradskii's Vector Formula

11. Propagation of Electromagnetic Waves and Vibrations in Resonators

12. Radiation of Electromagnetic Waves

13. Antenna on the Plane Earth

Supplement

I. Different Orthogonal Systems of Coordinates

1. Rectangular Coordinates

2. Cylindrical Coordinates

3. Spherical Coordinates

4. Elliptic Coordinates

5. Parabolic Coordinates

6. Ellipsoidal Coordinates

7. Degenerate Ellipsoidal Coordinates

8. Toroidal Coordinates

9. Bipolar Coordinates

10. Spheroidal Coordinates

11. Paraboloidal Coordinates

    II. Some Formula of Vector Analysis

    III. Special Functions

12. Trigonometric Functions

13. Hyperbolic Functions

14. The Error Integral

15. Gamma-Functions

16. Elliptic Functions

17. Bessel Functions

18. Legendre Polynomials

19. The Hypergeometric Function F(a, ß, )

    IV. Tables of the Error Integral and Roots of Some Characteristic Equations

References

Index