(in Polish) Ewolucyjne równania różniczkowe cząstkowe. Przegląd podstawowych metod ich badania
General data
Course ID: | 1000-1M20ERR |
Erasmus code / ISCED: |
11.1
|
Course title: | (unknown) |
Name in Polish: | Ewolucyjne równania różniczkowe cząstkowe. Przegląd podstawowych metod ich badania |
Organizational unit: | Faculty of Mathematics, Informatics, and Mechanics |
Course groups: |
(in Polish) Przedmioty obieralne na studiach drugiego stopnia na kierunku bioinformatyka Elective courses for 2nd stage studies in Mathematics |
ECTS credit allocation (and other scores): |
(not available)
|
Language: | (unknown) |
Main fields of studies for MISMaP: | mathematics |
Type of course: | elective monographs |
Mode: | Remote learning |
Short description: |
We shall present a number of methods for studying evolutionary PDE's, they are all with the scope of a basic course. We will present the stability theory of steady states, traveling waves, self-similar solutions and gradient flows. For the purpose of illustration we will use a number of different examples. |
Full description: |
The course is devoted to the presentation of a selection of methods for studying evolutionary problems. We shall regard them as infinitely dimensional dynamical system. A particularly nice example is the reaction-diffusion equations. It is well-known from the ODE theory that investigating stability of the steady states and orbits connecting them is important. A particular example of such a solution to reaction-diffusion problems are traveling waves. Another important example are self-similar solutions. They appear in different types of nonlinear problems. They are the key ingredients in the construction of shock waves. This is a type of solution to hyperbolic conservation laws. These problems are completely different from the diffusion-reaction equations. The structure of an equation simplifies if we know that it is a gradient flow or at least it has a Lapunov functional. One of important problems of this sort is the Cahn-Hilliard equation, which is of fourth order. Due to the the Lapunov functional we can show existence for all positive times. The lecture is for students interested in PDEs, no prerequisite is required beyond the basic PDE course. More topics than mentioned above will be covered. |
Bibliography: |
Christian Kuehn, PDE dynamics. An introduction. Mathematical Modeling and Computation, 23. Society for Industrial and Applied Mathematics (SIAM), Philadelphia, PA, 2019 Alain Miranville, The Cahn-Hilliard equation. Recent advances and applications. CBMS-NSF Regional Conference Series in Applied Mathematics, 95. Society for Industrial and Applied Mathematics (SIAM), Philadelphia, PA, 2019 Guido Schneider, Hannes Uecker, Nonlinear PDEs: A Dynamical Systems Approach, AMS, Providence, RI, 2017 |
Learning outcomes: |
A Student: 1. knows the importance of the study of stability of the steady states 2. knows importance of the travelling waves and self-similar solutions for the study of the dynamics 3. knows examples of the gradient flows and knows the notion of the omega-limit sets. |
Assessment methods and assessment criteria: |
A student is supposed to write an essay on a topic related to the course. A final grade is issued after the conversation on this essay. |
Copyright by University of Warsaw.