Nonlinear Ordinary Differential Equations: An Introduction to Dynamical Systems (Oxford Applied and Engineering Mathematics)

Rating:
Summary: Approachable introduction to nonlinear ODE's
Review: Certainly worth the price. Very approachable. I haven't reviewed many similar books -- this text is good enough that I haven't felt the need.

Covers: solution, characterization, and stability analysis, including bifurcation and chaos.

The new 3rd edition is much better and significantly longer than the earlier editions.