# A First Course in Partial Differential Equations With Complex Variables and Transform Methods

## Weinberger, Hans F.

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Suitable for advanced undergraduate and graduate students, this text presents the general properties of partial differential equations, including the elementary theory of complex variables. Topics include one-dimensional wave equation, properties of elliptic and parabolic equations, separation of variables and Fourier series, nonhomogeneous problems, and analytic functions of a complex variable. Solutions. 1965 edition.

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Contenuti:

I. The one-dimensional wave equation 1. A physical problem and its mathematical models: the vibrating string 2. The one-dimensional wave equation 3. Discussion of the solution: characteristics 4. Reflection and the free boundary problem 5. The nonhomogeneous wave equation II. Linear second-order partial differential equations in two variables 6. Linearity and superposition 7. Uniqueness for the vibrating string problem 8. Classification of second-order equations with constant coefficients 9. Classification of general second-order operators III. Some properties of elliptic and parabolic equations 10. Laplace's equation 11. Green's theorem and uniqueness for the Laplace's equation 12. The maximum principle 13. The heat equation IV. Separation of variables and Fourier series 14. The method of separation of variables 15. Orthogonality and least square approximation 16. Completeness and the Parseval equation 17. The Riemann-Lebesgue lemma 18. Convergence of the trigonometric Fourier series 19. "Uniform convergence, Schwarz's inequality, and completeness" 20. Sine and cosine series 21. Change of scale 22. The heat equation 23. Laplace's equation in a rectangle 24. Laplace's equation in a circle 25. An extension of the validity of these solutions 26. The damped wave equation V. Nonhomogeneous problems 27. Initial value problems for ordinary differential equations 28. Boundary value problems and Green's function for ordinary differential equations 29. Nonhomogeneous problems and the finite Fourier transform 30. Green's function VI. Problems in higher dimensions and multiple Fourier series 31. Multiple Fourier series 32. Laplace's equation in a cube 33. Laplace's equation in a cylinder 34. The three-dimensional wave equation in a cube 35. Poisson's equation in a cube VII. Sturm-Liouville theory and general Fourier expansions 36. Eigenfunction expansions for regular second-order ordinary differential equations 37. Vibration of a variable string 38. Some properties of eigenvalues and eigenfunctions 39. Equations with singular endpoints 40. Some properties of Bessel functions 41. Vibration of a circular membrane 42. Forced vibration of a circular membrane: natural frequencies and resonance 43. The Legendre polynomials and associated Legendre functions 44. Laplace's equation in the sphere 45. Poisson's equation and Green's function for the sphere VIII. Analytic functions of a complex variable 46. Complex numbers 47. Complex power series and harmonic functions 48. Analytic functions 49. Contour integrals and Cauchy's theorem 50. Composition of analytic functions 51. Taylor series of composite functions 52. Conformal mapping and Laplace's equation 53. The bilinear transformation 54. Laplace's equation on unbounded domains 55. Some special conformal mappings 56. The Cauchy integral representation and Liouville's theorem IX. Evaluation of integrals by complex variable methods 57. Singularities of analytic functions 58. The calculus of residues 59. Laurent series 60. Infinite integrals 61. Infinite series of residues 62. Integrals along branch cuts X. The Fourier transform 63. The Fourier transform 64. Jordan's lemma 65. Schwarz's inequality and the triangle inequality for infinite integrals 66. Fourier transforms of square integrable functions: the Parseval equation 67. Fourier inversion theorems 68. Sine and cosine transforms 69. Some operational formulas 70. The convolution product 71. Multiple Fourier transforms: the heat equation in three dimensions 72. The three-dimensional wave equation 73. The Fourier transform with complex argument XI. The Laplace transform 74. The Laplace transform 75. Initial value problems for ordinary differential equations 76. Initial value problems for the one-dimensional heat equation 77. A diffraction problem 78. The Stokes rule and Duhamel's principle XII. Approximation methods 79. "Exact" and approximate solutions" 80. The method of finite differences for initial-boundary value problems 81. The finite difference method for Laplace's equation 82. The method of successive approximations 83. The Raleigh-Ritz method SOLUTIONS TO THE EXERCISES INDEX

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## 1.A First Course in Partial Differential Equations Format: Trade Paper

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## 2.A First Course in Partial Differential Equations with Complex Variables and Transform Methods

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Descrizione libro Dover Publications Inc., 1995. PAP. Condizione libro: New. New Book.Shipped from US within 10 to 14 business days. Established seller since 2000. Codice libro della libreria IB-9780486686400

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## 4.A First Course in Partial Differential Equations with Complex Variables and Transform Methods (Paperback)

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Descrizione libro Dover Publications Inc., United States, 1995. Paperback. Condizione libro: New. New edition. 229 x 163 mm. Language: English . Brand New Book. Suitable for advanced undergraduate and graduate students, this text presents the general properties of partial differential equations, including the elementary theory of complex variables. Topics include one-dimensional wave equation, properties of elliptic and parabolic equations, separation of variables and Fourier series, nonhomogeneous problems, and analytic functions of a complex variable. Solutions. 1965 edition. Codice libro della libreria AAB9780486686400

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## 5.A First Course in Partial Differential Equations with Complex Variables and Transform Methods (Paperback)

Editore: Dover Publications Inc., United States (1995)
ISBN 10: 048668640X ISBN 13: 9780486686400
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Descrizione libro Dover Publications Inc., United States, 1995. Paperback. Condizione libro: New. New edition. 229 x 163 mm. Language: English . Brand New Book. Suitable for advanced undergraduate and graduate students, this text presents the general properties of partial differential equations, including the elementary theory of complex variables. Topics include one-dimensional wave equation, properties of elliptic and parabolic equations, separation of variables and Fourier series, nonhomogeneous problems, and analytic functions of a complex variable. Solutions. 1965 edition. Codice libro della libreria AAB9780486686400

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## 6.A First Course in Partial Differential Equations: with Complex Variables and Transform Methods (Dover Books on Mathematics)

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## 7.A First Course in Partial Differential Equations: with Complex Variables and Transform Methods (Dover Books on Mathematics)

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## 8.A First Course in Partial Differential Equations with Complex Variables and Transform Methods (Dover Books on Mathematics)

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Descrizione libro Dover Publications Inc. 1995-12-01, 1995. Condizione libro: New. Brand new book, sourced directly from publisher. Dispatch time is 24-48 hours from our warehouse. Book will be sent in robust, secure packaging to ensure it reaches you securely. Codice libro della libreria NU-ING-00172634

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## 9.A First Course in Partial Differential Equations: with Complex Variables and Transform Methods (Dover Books on Mathematics)

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## 10.A First Course in Partial Differential Equations: With Complex Variables and Transform Methods

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