# NMAK19008U CANCELLED 2019/20: Dynamical Systems

Volume 2019/2020
Education

MSc Programme in Mathematics

Content

The course is an introduction to dynamical systems with emphasis on Ordinary Differential Equations (ODEs). The following topics will be discussed:

• Linear Systems: Existence and Uniqueness Theorem, Continuous Dependence on Initial Conditions and Parameters
• Stability Theory: Matrix solutions, Lyapunov functions
• Global Theory of Nonlinear Systems: Hartman-Grobman Theorem, Poincare-Bendixson Theorem
• Bifurcation theory: One and two dimensional bifurcations
• Discrete Dynamical Systems: Period doubling bifurcation
• Applications to chemistry, ecology, epidemiology and mechanics.
Learning Outcome

Knowlegde:

• Basic concepts in dynamic system theory: solutions, stability, bifurcation.
• Standard methodes to determine the behavior of a dynamical system: Lyapunov function approach, eigenvalues of coefficient matrix
• Local versus global behavior.

Skills:

• Solve 2- and 3-dimensional linear ODEs with constant coefficients
• Determine uniform / asymptotic stability of equilibria for linear systems
• Prove stability / instability of gradient systems by constructing Lyapunov functions
• Compute stable / unstable manifolds of simple 2-3 dimensional nonlinear systems
• Identify fixed-point bifurcations and Hopf bifurcation for 1 or 2-dimensional ODEs
• Describe bifurcations for simple discrete mappings

Competences:

• Apply dynamical systems theory to build models and understand natural phenomena (for instance, Hopf bifurcation)

See Absalon for final course literature. The following is an example of expected course literature

EA Coddington and N. Levinson, Theory of ordinary differential equations. Tata McGraw-Hill Education, 1955.

L. Perko, Differential Equations and Dynamical Systems. 3rd Ed, Springer-Verlag, 2001.

MW Hirsch, S. Smale, RL Devaney, Differential Equations, Dynamic Systems and an Introduction to Chaos. Elsevier, Amsterdam, 2004.

E.g., the course Differential Equations (Diff).

Academic qualifications equivalent to a BSc degree is recommended.
4 hours lectures and 2 hours exercises per week for 7 weeks.
• Category
• Hours
• Exam
• 3
• Lectures
• 28
• Preparation
• 161
• Theory exercises
• 14
• Total
• 206
Credit
7,5 ECTS
Type of assessment
Written examination, 3 hours
Written exam.
Exam registration requirements

To qualify for the exam two written assignments must be approved (passed/not passed)

Aid
Written aids allowed
Marking scale