Learning Outcomes:
On completion of this module students should be able to:
- identify fixed points of nonlinear systems.
- use linear stability analysis to classify fixed points.
- plot trajectories and phase portraits.
- discuss the various forms of stability and the relevance of conservative systems and reversible systems.
- identify bifurcation points.
- classify and describe different types of bifurcations.
- identify limit points and limit cycles and apply the Poincare Bendixson theorem, Liapunov functions and Liénard's theorem.
- discuss chaotic systems and give some examples.
Indicative Module Content:
- Flows on the line
- Fixed points and stability
- Linear stability analysis
- Bifurcations: saddle-node, pitchfork, transcritical
- Classification of linear systems
- Phase portraits
- Conservative and reversible systems
- Limit cycles
- Poincaré-Bendixson theorem
- Hopf bifurcations
- Chaos: Lorenz equations, fractals, strange attractors