Course
Dual DegreeSemester
ElectivesSubject Code
PH362Subject Title
Non-linear Dynamics, Chaos and FractalsSyllabus
Flows on the line: Introduction; Fixed points and stability; Population growth; Linear Stability Analysis; Existence and Uniqueness; Impossibility of oscillations; Potentials
Bifurcations: Saddle-node bifurcation; Transcritical bifurcation; Laser threshold; Pitchfork bifurcation; Overdamped bead on a rotating hoop; Imperfect bifurcations and catastrophes; Insect outbreak
Flows on a circle: Examples and Definitions; Uniform Oscillator; Nonuniform Oscillator; Overdamped Pendulum; Fireflies; Superconducting Josephson junctions
Linear Systems: Definitions and examples; Classification of linear systems; Love Affairs
Phase Plane: Phase portraits; Existence, uniqueness and topological consequences; Fixed points and linearization; Rabbits versus sheep; Conservative systems; Reversible systems; Pendulum
Limit Cycles: Examples; Ruling out closed orbits; Poincare-Bendixson theorem; Lienard systems
Bifurcations Revisited: Saddle-node, transcritical and pitchfork bifurcaations; Hopf bifurcations; Oscillating chemical reactions; Global bifurcations of cycles; Hysterisis in the driven pendulum and Josephson junction; Coupled oscillators and quasiperiodicity; Poincare maps
Lorenz equations: A chaotic waterwheel; Simple properties of the Lorenz equations; Chaos on a strange attractor; Lorenz map; Exploring parameter space
One-dimensional maps: Fixed points and cobwebs; Logistic map: Numerics and Analysis; Periodic windows;
Liapunov exponent; Universality and experiments
Fractals: Countable and Uncountable Sets; Cantor set; Dimension of self-similar fractals; Box dimension; Pointwise and correlation dimensions
Strange attractors: Examples; Henon map; Rossler system; Chemical chaos
Text Books
1. Nonlinear Dynamics and Chaos by Steven Strogagtz, Perseus Books
References
Information Not Available