V. K. Dzyadyk 
Approximation Methods for Solutions of Differential and Integral Equations [PDF ebook] 

Frontmatter — Contents — Preface — 1. Introduction to approximation theory — 2. A simple approach to Fredholm integral equations of the second kind and application of linear methods for approximating their solutions — 3. Iteration method for approximately solving differential and integral equations — 4. Approximation method for solving ordinary linear differential equations — 5. Approximation of solutions of partial differential equations — 6. Theory of transcendental functions and their approximation — 7. Application of the ?—method to the rational approximation and integral representation of functions — Bibliography