|This text is a slightly edited version of lecture notes for a course given at ETH, during the Summer term 2001, to undergraduate Mathematics and Physics students. It covers a few selected topics from perturbation theory at an introductory level.|
Chapter 1 - Introduction and Examples
Chapter 2 - Bifurcations and Unfolding
Chapter 3 - Regular Perturbation Theory
Chapter 4 - Singular Perturbation Theory.