Teaching materials

P.G. Grinevich. Introduction to the Theory of Solitons (math questions) - a course of lectures.

O.M. Kiselev. Introduction to the Theory of Nonlinear Oscillations (lectures).

O.M. Kiselev. Zoo beasts or familiarity with specific functions (lectures).

DiffEQ Resource Center

Calculus: Difference Equations to Differential Equations

EqWorld: The World of Mathematical Equations