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Course module: 191560430
191560430
Nonlinear Dynamics
Course infoSchedule
Course module191560430
Credits (ECTS)5
Course typeCourse
Language of instructionEnglish
Contact persondr. H.G.E. Meijer
E-mailh.g.e.meijer@utwente.nl
Lecturer(s)
Lecturer
M. Kalia
Lecturer
prof.dr. I.A. Kouznetsov
Examiner
dr. H.G.E. Meijer
Contactperson for the course
dr. H.G.E. Meijer
Academic year2020
Starting block
1A
Application procedureYou apply via OSIRIS Student
Registration using OSIRISYes
Aims
After this course, the student will be able to
- Perform phase-plane analysis using zero-isoclines and Poincare-Bendixson-Dulac theorems for planar systems;
- Locate and analyze fold and Hopf bifurcations of equilibria in simple 2D and 3D systems depending on one parameter;
- Produce two-parameter bifurcation diagrams for equilibria in planar systems and predict the existence and bifurcations of limit cycles in such systems using bifurcation diagrams;
- Simulate planar and 3D ODEs using standard interactive software and relate observations to bifurcation theory;
Content

Most of the intriguing phenomena in nature are due to nonlinearities. Therefore, the study of nonlinear dynamics is essential to develop the framework necessary to understand phenomena such as  periodic behavior, invariant tori, sensitive dependence on initial conditions (chaos), etcetera.
Bifurcation theory has been developed to systematically study the changes in behavior when parameters are varied. We will provide a catalogue of various dynamical regimes (equilibrium, periodic, quasiperiodic, chaotic) in systems of smooth ordinary differential equations (ODEs) and their qualitative changes under parameter variations (called 'bifurcations') such as saddle-node, Hopf, period-doubling, torus, and homoclinic bifurcations. The exposition will include an overview (in most cases without proofs) of all local bifurcations possible in generic ODEs depending on one and two parameters, as well as some global bifurcations involving limit cycles and homoclinic orbits. This will be applied to well known systems like the van der Pol oscillator, the Fitzhugh-Nagumo equations, the logistic map and the Henon map. Analytical techniques such as normal forms, center manifold reduction, return maps, perturbation of Hamiltonian systems are important tools for understanding and interpreting the dynamics. Examples from ecology and engineering will be studied numerically using software tools.


Content in keywords
Bifurcation theory, nonlinear dynamics, periodic orbits, stability, chaos, reduction.
 
This course is compulsory within the graduate program Computational Science. 

H.G.E Meijer will provide the lectures for this course. I.A. Kouznetsov will be the back-up lecturer.
Assumed previous knowledge
Elementary knowledge of calculus, linear algebra (Eigenvalues and eigenvectors) and ordinary differential equeations is assumed.
Participating study
Master Applied Mathematics
Participating study
Master Applied Physics
Participating study
Master Mechanical Engineering
Participating study
Master Chemical Engineering
Participating study
Master Biomedical Engineering
Required materials
Reader
Reader Nonlinear Dynamics (Available digitally)
Recommended materials
Course material
Elements of Applied Bifucation Theory, Yuri A. Kuznetsov, Applied Mathematical Sciences 112, Springer. 3rd edition
Instructional modes
Lecture

Tutorial

Tests
Oral exam

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Kies de Nederlandse taal