perturbation

A First Look at Perturbation Theory

  • Introduction and Overview
  • Roots of Polynomials
  • Singular Perturbations in Ordinary Differential Equations
  • Periodic S olutions of the Simplest Nonlinear Differential Equations. Poincare’s Method
  • Introduction to the Two-Scale Method
  • The WKB Approximation
  • Transition Point Problems and Langer’s Method of Uniform Approximation
  • Cables and Cells: Ancient and Modern Problems
  • A Roots of Tšœ–(z) and To(z)
  • Proof that RN+l = O(š›½N+l)
  • Approximate Evaluation of Integrals