Perturbation Methods In Applied Mathematics Av J. Kevorkian, J.d. Cole

This book is a revised and updated version, including a substantial portion of new material, of J. D. Cole''s text Perturbation Methods in Applied Mathe¿ matics, Ginn-Blaisdell, 1968. We present the material at a level which assumes some familiarity with the basics of ordinary and partial differential equations. Some of the more advanced ideas are reviewed as needed; therefore this book can serve as a text in either an advanced undergraduate course or a graduate level course on the subject. The applied mathematician, attempting to understand or solve a physical problem, very often uses a perturbation procedure. In doing this, he usually draws on a backlog of experience gained from the solution of similar examples rather than on some general theory of perturbations. The aim of this book is to survey these perturbation methods, especially in connection with differ¿ ential equations, in order to illustrate certain general features common to many examples. The basic ideas, however, are als

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