Ordinary Differential Equations
Basics concepts: Phase space, existence and uniquness theorems, dependence on initial conditions, flows.
Linear system: The fundamental matrix, stability of equilibrium points. Sturm-Liouvile theory .
Nonlinear system and their stability: The Poincare-Bendixon theorem, perturbed linear systems, Lyapunov methods.
Books
Coddington, E. A. and Levinson, N., Theory of Ordinary Differential Equations, Tata McGraw-Hill 1972.
Birkhoff, G. and Rota, G.-C., Ordinary Differential Equations, wiley, 1989.
Hartman, P., Ordinary Differential Equations, Birkhaeuser, 1982.