The well-posedness of hyperbolic PDE

The main aim of this course is to show that the Cauchy problem of several hyperbolic linear and non linear PDEs are locally well-posed.

A problem is well-posed if solutions exist in a suitable functional space and these solutions are unique and stable.

In this course, we will show local well-posedness in Sobolev spaces by using energy estimates and the Hahn-Banach theorem.

First, we will show local well-posedness of linear symmetric hyperbolic systems.

Then, we will show that suitable modifications of those results will allow us to prove local well-posedness of linear wave equations.

The last part of the course will focus on non-linear wave equations.


Dr. Yafet Sanchez Sanchez (yess(at)

Prof. Dr. Matthias Lesch (lesch(at)