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Cambridge University Press | ISBN 978-0-521-84886-2 | Pages: 385 | English | PDF | Size: 1.87 MB | RAR-Commpressed : 2.28 MB | No Password
This book presents an introduction to the theory and applications of partial differential equations (PDEs). The book is suitable for all types of basic courses on PDEs, including courses for undergraduate engineering, sciences and mathematics students, and for ?rst-year graduate courses as well. Having taught courses on PDEs for many years to varied groups of students from engineering, science and mathematics departments, we felt the need for a textbook that is concise, clear, motivated by real examples and mathematically rigorous.We therefore wrote a book that covers the foundations of the theory of PDEs. This theory has been developed over the last 250 years to solve the most fundamental problems in engineering, physics and other sciences. Therefore we think that one should not treat PDEs as an abstract mathematical discipline; rather it is a ?eld that is closely related to real-world problems. For this reason we strongly emphasize throughout the book the relevance of every bit of theory and every practical tool to some speci?c application. At the same time, we think that the modern engineer or scientist should understand the basics of PDE theory when attempting to solve speci?c problems that arise in applications. Therefore we took great care to create a balanced exposition of the theoretical and applied facets of PDEs. The book is ?exible enough to serve as a textbook or a self-study book for a large class of readers. The ?rst seven chapters include the core of a typical one-semester course. In fact, they also include advanced material that can be used in a graduate course. Chapters 9 and 11 include additional material that together with the ?rst seven chapters ?ts into a typical curriculum of a two-semester course. In addition, Chapters 8 and 10 contain advanced material on Green’s functions and the calculus of variations. The book covers all the classical subjects, such as the separation of variables technique and Fourier’s method (Chapters 5, 6, 7, and 9), the method of characteristics (Chapters 2 and 9),
and Green’s function methods (Chapter 8). At the same time we introduce the basic theorems that guarantee that the problem at hand is well de?ned (Chapters 2–10), and we took care to include modern ideas such as variational methods (Chapter 10) and numerical methods (Chapter 11). The ?rst eight chapters mainly discuss PDEs in two independent variables. Chapter 9 shows how the methods of the ?rst eight chapters are extended and enhanced to handle PDEs in higher dimensions. Generalized and weak solutions are presented in many parts of the book. Throughout the book we illustrate the mathematical ideas and techniques by applying them to a large variety of practical problems, including heat conduction, wave propagation, acoustics, optics, solid and ?uid mechanics, quantum mechanics, communication, image processing, musical instruments, and traf?c ?ow. We believe that the best way to grasp a new theory is by considering examples and solving problems. Therefore the book contains hundreds of examples and problems,
most of them at least partially solved. Extended solutions to the problems are available for course instructors using the book from
Code:
solutions@cambridge.org
We also include dozens of drawing and graphs to explain the text better and to demonstrate visually some of the special features of certain solutions. It is assumed that the reader is familiar with the calculus of functions in several variables, with linear algebra and with the basics of ordinary differential equations. The book is almost entirely self-contained, and in the very few places where we cannot go into details, a reference is provided. The book is the culmination of a slow evolutionary process. We wrote it during several years, and kept changing and adding material in light of our experience in the classroom. The current text is an expanded version of a book in Hebrew that the authors published in 2001, which has been used successfully at Israeli universities and colleges since then. Our cumulative expertise of over 30 years of teaching PDEs at several universities, including Stanford University, UCLA, Indiana University and the Technion – Israel Institute of Technology guided to us to create a text that enhances not just technical competence but also deep understanding of PDEs.We are grateful to our many students at these universities with whom we had the pleasure of studying this fascinating subject. We hope that the readers will also learn to enjoy it. We gratefully acknowledge the help we received from a number of individuals. Kristian Jenssen from North Carolina State University, Lydia Peres and Tiferet Saadon from the Technion – Israel Institute of Technology, and Peter Sternberg from Indiana University read portions of the draft and made numerous comments and suggestions for improvement. Raya Rubinstein prepared the drawings, whileYishai Pinchover and Aviad Rubinstein assisted with the graphs. Despite our best efforts, we surely did not discover all the mistakes in the draft. Therefore we encourage observant readers to send us their comments at
Code:
pincho@techunix.technion.ac.il
We will maintain a webpage with a list of errata at
Code:
http://www.math.technion.ac .il/~pincho/PDE.pdf
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Code:
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Introduction to Partial Differential Equations
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