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本书是一本物理科学家的著作,其语言是奇异摄动分析。本书对研究常微分方程(ODE)和偏微分方程(PDE)边值问题的奇异摄动分析的数学家和物理学家非常有用。阅读本书需具备基本的分析技能和良好的数学物理课程基础。 This book is the testimony of a physical scientist whose language is singular perturbation analysis. Classical mathematical notions, such as matched asymptotic expansions, projections of large dynamical systems onto small center manifolds, and modulation theory of oscillations based either on multiple scales or on averaging/transformation theory, are included. The narratives of these topics are carried by physical examples: Let’s say that the moment when we “see” how a mathematical pattern fits a physical problem is like “hitting the ball”. Yes, we want to hit the ball. But a powerful stroke includes the follow-through. One intention of this book is to discern in the structure and/or solutions of the equations their geometric and physical content. Through analysis, we come to sense directly the shape and feel of phenomena. |
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