MATH-485 / 5 credits
Teacher: Hairer Martin
Stochastic PDEs are used to model systems that are spatially extended and include a random component. This course gives an introduction to this topic, including some Gaussian measure theory and some analytic semigroup theory.
Stochastic PDEs form a relatively recent area of mathematics that combines many different fields, including PDE theory, stochastic analysis, ergodic theory, functional analysis, etc. This course is an introduction to the area with the aim of being able to appreciate some 21st century developments towards the end of the course. We will mainly focus on the development of a rather general solution theory for linear and semilinear stochastic PDEs, including stochastically forced heat, Navier-Stokes, and reaction-diffusion equations.
Some of the tools developed in this course, in particular Gaussian measure theory and analytic semigroup theory, are of broader interest.
probability, partial differential equations, semigroups, Gaussian measures
Measure and integration
Functional Analysis I-II
Important concepts to start the course
Basic concepts in probability theory
Basic properties of Hilbert and Banch spaces
Weekly lectures (on blackboard) and exercise sessions with assistant
Expected student activities
Attending the lectures and solving the exercises
Virtual desktop infrastructure (VDI)
G. DA PRATO and J. ZABCZYK. Stochastic equations in infinite dimensions, vol. 44 of Encyclopedia of Mathematics and its Applications. Cambridge University Press, Cambridge, 1992.
A. LUNARDI. Analytic semigroups and optimal regularity in parabolic problems. Progress in Nonlinear Differential Equations and their Applications, 16. Birkhäuser Verlag, Basel, 1995.
V. I. BOGACHEV. Gaussian measures, vol. 62 of Mathematical Surveys and Monographs. American Mathematical Society, Providence, RI, 1998.
P. BILLINGSLEY. Convergence of probability measures. John Wiley & Sons Inc., New York, 1968.
K. YOSIDA. Functional analysis. Classics in Mathematics. Springer-Verlag, Berlin, 1995. Reprint of the sixth (1980) edition.
Ressources en bibliothèque
- Convergence of probability measures / Billingsley
- Analytic semigroups and optimal regularity in parabolic problems / Lunardi
- Stochastic equations in infinite dimensions / Da Prato
- Functional analysis / Yosida
- Gaussian measures / Bogachev
The lecture will mainly follow the notes available at https://www.hairer.org/notes/SPDEs.pdf, but might cover additional material if time permits.
In the programs
- Semester: Spring
- Exam form: Oral (summer session)
- Subject examined: Introduction to stochastic PDEs
- Lecture: 3 Hour(s) per week x 14 weeks
- Exercises: 2 Hour(s) per week x 14 weeks