Non-linear Dynamics

Recommended

Strogatz, S. H. (2015). Nonlinear dynamics and chaos: With applications to physics, biology, chemistry, and engineering (Second edition). Westview Press.

Krishnaswami, G. S. (2020). Notes on Nonlinear Dynamics. PDF

Concise.

Ross, S. L. (2004). Differential equations (Third edition, Wiley student edition). Wiley India.

The chapter, chapter 13, on nonlinear differential equations is useful. Especially I liked his approach where he first introduced critical points and paths for linear systems, and then for nonlinear systems. This helped me.

If I Get Time