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,

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,

This introductory graduate text is based on a graduate course the author has taught repeatedly over the last ten years to students in applied mathematics, engin

Perturbations: Theory and Methods gives a thorough introduction to both regular and singular perturbation methods for algebraic and differential equations. Unli

This book results from various lectures given in recent years. Early drafts were used for several single semester courses on singular perturbation meth ods give