| Document Type
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BL
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| Record Number
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674181
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| Doc. No
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b503370
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| Main Entry
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Murdock, James A.
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| Title & Author
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Perturbations : theory and methods /\ James A. Murdock.
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| Publication Statement
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Philadelphia, Pa. :: Society for Industrial and Applied Mathematics,, 1999.
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| Series Statement
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Classics in applied mathematics ;; 27.
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| Page. NO
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1 online resource (xx, 509 p.) :: ill.
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| ISBN
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9781611971095 (electronic bk.)
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0898714435 (pbk.)
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9780898714432 (pbk.)
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| Bibliographies/Indexes
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Includes bibliographical references and indexes.
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| Contents
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Preface to the Classics edition -- Preface -- Part I. Introduction to perturbation theory. Chapter 1. Root finding -- Chapter 2. Regular perturbations -- Chapter 3. Direct error estimation -- Part II. Oscillatory phenomena. Chapter 4. Periodic solutions and Lindstedt series -- Chapter 5. Multiple scales -- Chapter 6. Averaging -- Part III. Transition layers. Chapter 7. Initial layers -- Chapter 8. Boundary layers -- Chapter 9. Methods of the WKB type -- Appendix A. Taylor's theorem -- Appendix B. The implicit function theorem -- Appendix C. Second order differential equations -- Appendix D. Systems of differential equations -- Appendix E. Fourier series -- Appendix F. Lipschitz constants and vector norms -- Appendix G. Logical quantifiers and uniformity -- Symbol index -- Index.
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| Abstract
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Perturbations: Theory and Methods gives a thorough introduction to both regular and singular perturbation methods for algebraic and differential equations. Unlike most introductory books on the subject, this one distinguishes between formal and rigorous asymptotic validity, which are commonly confused in books that treat perturbation theory as a bag of heuristic tricks with no foundation. The meaning of "uniformity" is carefully explained in a variety of contexts. All standard methods, such as rescaling, multiple scales, averaging, matching, and the WKB method are covered, and the asymptotic validity (in the rigorous sense) of each method is carefully proved. First published in 1991, this book is still useful today because it is an introduction. It combines perturbation results with those known through other methods. Sometimes a geometrical result (such as the existence of a periodic solution) is rigorously deduced from a perturbation result, and at other times a knowledge of the geometry of the solutions is used to aid in the selection of an effective perturbation method. Dr. Murdock's approach differs from other introductory texts because he attempts to present perturbation theory as a natural part of a larger whole, the mathematical theory of differential equations. He explores the meaning of the results and their connections to other ways of studying the same problems.
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| Subject
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Perturbation (Mathematics)
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| Dewey Classification
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515/.35
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| LC Classification
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QA871.M87 1999
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| Added Entry
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Society for Industrial and Applied Mathematics.
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