Ubrary of Congress Cataloging-in-Publication Data. Farlow, Stanley J., Partial differential equations for scientists and engineers I Stanley J. Farlow. p. cm. PDF | On Jul 1, , Stanley J. FARLOW and others published Partial Differential Equations for Scientists and Engineers. Partial Differential Equations for Scientists and Engineers - Ebook download as PDF File .pdf), Text File .txt) or read book online. Most physical phenomena.
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Tyn Myint-U. Lokenath Debnath. Linear Partial. Differential Equations for Scientists and Engineers. Fourth Edition. Birkhäuser. Boston • Basel •. There are advantages in having a wife smarter than you. I could 'Oh that Chetan Bhagat,' he said, like he knew a milli Introduction to Partial Differential. The first € price and the £ and $ price are net prices, subject to local VAT. Prices indicated with * include VAT for books; the €(D) includes 7% for. Germany, the.
These changes have been made to provide the reader to see the direction in which the subject has developed and find those contributed to its developments. A new Chapter 2 on first-order, quasi-linear, and linear partial differential equations, and method of characteristics has been added with many new examples and exercises.
Preface to the Fourth Edition xvii 3. Chapter 6 on Fourier series and integrals with applications has been completely revised and new material added, including a proof of the pointwise convergence theorem. A new section on fractional partial differential equations has been added to Chapter 12 with many new examples of applications. A new section on the Lax pair and the Zakharov and Shabat Scheme has been added to Chapter 13 to modernize its contents. Some sections of Chapter 14 have been revised and a new short section on the finite element method has been added to this chapter.
A new Chapter 15 on tables of integral transforms has been added in order to make the book self-contained. The whole section on Answers and Hints to Selected Exercises has been expanded to provide additional help to students.
All figures have been redrawn and many new figures have been added for a clear understanding of physical explanations. An Appendix on special functions and their properties has been expanded. Index of the book has also been completely revised in order to include a wide variety of topics.
With the improvements and many challenging worked-out problems and exercises, we hope this edition will continue to be a useful textbook for xviii Preface to the Fourth Edition students as well as a research reference for professionals in mathematics, applied mathematics, physics and engineering.
It is our pleasure to express our grateful thanks to many friends, colleagues, and students around the world who offered their suggestions and help at various stages of the preparation of the book. We offer special thanks to Dr. Andras Balogh, Mr.
Kanadpriya Basu, and Dr. Dambaru Bhatta for drawing all figures, and to Mrs. Veronica Martinez for typing the manuscript with constant changes and revisions.
In spite of the best efforts of everyone involved, some typographical errors doubtless remain. Tyn Myint-U Lokenath Debnath Preface to the Third Edition The theory of partial differential equations has long been one of the most important fields in mathematics.
This is essentially due to the frequent occurrence and the wide range of applications of partial differential equations in many branches of physics, engineering, and other sciences. With much interest and great demand for theory and applications in diverse areas of science and engineering, several excellent books on PDEs have been published.
This book is written to present an approach based mainly on the mathematics, physics, and engineering problems and their solutions, and also to construct a course appropriate for all students of mathematical, physical, and engineering sciences. Our primary objective, therefore, is not concerned with an elegant exposition of general theory, but rather to provide students with the fundamental concepts, the underlying principles, a wide range of applications, and various methods of solution of partial differential equations.
This book, a revised and expanded version of the second edition published in , was written for a one-semester course in the theory and applications of partial differential equations. It has been used by advanced undergraduate or beginning graduate students in applied mathematics, physics, engineering, and other applied sciences. The prerequisite for its study is a standard calculus sequence with elementary ordinary differential equations.
This revision preserves the basic content and style of the earlier editions, which were written by Tyn Myint-U alone. However, the authors have made some major additions and changes in this third edition in order to modernize the contents and to improve clarity. Two new chapters added are on nonlinear PDEs, and on numerical and approximation methods. New material emphasizing applications has been inserted. New examples and exercises have been provided.
Many physical interpretations of mathematical solutions have been added.
Also, the authors have improved the exposition by reorganizing some material and by making examples, exercises, and ap- xx Preface to the Third Edition plications more prominent in the text.
These additions and changes have been made with the student uppermost in mind. The first chapter gives an introduction to partial differential equations. The second chapter deals with the mathematical models representing physical and engineering problems that yield the three basic types of PDEs.
Included are only important equations of most common interest in physics and engineering. The third chapter constitutes an account of the classification of linear PDEs of second order in two independent variables into hyperbolic, parabolic, and elliptic types and, in addition, illustrates the determination of the general solution for a class of relatively simple equations.
Special attention is given to the physical significance of solutions and the methods of solution of the wave equation in Cartesian, spherical polar, and cylindrical polar coordinates. The fifth chapter contains a fuller treatment of Fourier series and integrals essential for the study of PDEs. Also included are proofs of several important theorems concerning Fourier series and integrals.
Separation of variables is one of the simplest methods, and the most widely used method, for solving PDEs. The basic concept and separability conditions necessary for its application are discussed in the sixth chapter.
This is followed by some well-known problems of applied mathematics, mathematical physics, and engineering sciences along with a detailed analysis of each problem. Special emphasis is also given to the existence and uniqueness of the solutions and to the fundamental similarities and differences in the properties of the solutions to the various PDEs. In Chapter 7, self-adjoint eigenvalue problems are treated in depth, building on their introduction in the preceding chapter.
Following the general theory of eigenvalues and eigenfunctions, the most common special functions, including the Bessel, Legendre, and Hermite functions, are discussed as examples of the major role of special functions in the physical and engineering sciences. Boundary-value problems and the maximum principle are described in Chapter 8, and emphasis is placed on the existence, uniqueness, and wellposedness of solutions. Preface to the Third Edition xxi Chapter 11 provides an introduction to the use of integral transform methods and their applications to numerous problems in applied mathematics, mathematical physics, and engineering sciences.
The fundamental properties and the techniques of Fourier, Laplace, Hankel, and Mellin transforms are discussed in some detail. Applications to problems concerning heat flows, fluid flows, elastic waves, current and potential electric transmission lines are included in this chapter.
Chapters 12 and 13 are entirely new. First-order and second-order nonlinear PDEs are covered in Chapter Most of the contents of this chapter have been developed during the last twenty-five years. The solutions of these equations are then discussed with physical significance. Special emphasis is given to the fundamental similarities and differences in the properties of the solutions to the corresponding linear and nonlinear equations under consideration.
The final chapter is devoted to the major numerical and approximation methods for finding solutions of PDEs. A fairly detailed treatment of explicit and implicit finite difference methods is given with applications The variational method and the Euler—Lagrange equations are described with many applications.
Also included are the Rayleigh—Ritz, the Galerkin, and the Kantorovich methods of approximation with many illustrations and applications. This new edition contains almost four hundred examples and exercises, which are either directly associated with applications or phrased in terms of the physical and engineering contexts in which they arise. The exercises truly complement the text, and answers to most exercises are provided at the end of the book.
The Appendix has been expanded to include some basic properties of the Gamma function and the tables of Fourier, Laplace, and Hankel transforms. For students wishing to know more about the subject or to have further insight into the subject matter, important references are listed in the Bibliography. The chapters on mathematical models, Fourier series and integrals, and eigenvalue problems are self-contained, so these chapters can be omitted for those students who have prior knowledge of the subject.
An attempt has been made to present a clear and concise exposition of the mathematics used in analyzing a variety of problems. With this in mind, the chapters are carefully organized to enable students to view the material in an orderly perspective. For example, the results and theorems in the chapters on Fourier series and integrals and on eigenvalue problems are explicitly mentioned, whenever necessary, to avoid confusion with their use in the development of PDEs.
In this third edition, specific changes and additions include the following: xxii Preface to the Third Edition 1. Chapter 2 on mathematical models has been revised by adding a list of the most common linear PDEs in applied mathematics, mathematical physics, and engineering science.
The chapter on the Cauchy problem has been expanded by including the wave equations in spherical and cylindrical polar coordinates. Examples and exercises on these wave equations and the energy equation have been added. Chapter 11 has been extensively reorganized and revised in order to include Hankel and Mellin transforms and their applications, and has new sections on the asymptotic approximation method and the finite Hankel transform with applications.
Many new examples and exercises, some new material with applications, and physical interpretations of mathematical solutions have also been included. A new chapter on nonlinear PDEs of current interest and their applications has been added with considerable emphasis on the fundamental similarities and the distinguishing differences in the properties of the solutions to the nonlinear and corresponding linear equations. Chapter 13 is also new. It contains a fairly detailed treatment of explicit and implicit finite difference methods with their stability analysis.
A large section on the variational methods and the Euler—Lagrange equations has been included with many applications. Also included are the Rayleigh—Ritz, the Galerkin, and the Kantorovich methods of approximation with illustrations and applications. Expanded versions of the tables of Fourier, Laplace, and Hankel transforms are included. The bibliography has been updated with more recent and important references.
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