When you have decided to do a dissertation
As a natural science PhD programme in the GAUSS Graduate School, PEI is governed by the math/nat Promotionsordnung [doctoral examination regulations]. The Faculty of Mathematics and Computer Science is responsible for the formal undertaking of your dissertation. If you are not certain about any of the rules which apply to you, please let yourself be advised by the personnel in the Dean's Office of the Faculty of Mathematics and Computer Science. As an initial guide, we have provided under "orientation" an overview of the normal procedures involved in applying for and undertaking a dissertation.
You can find the most important documents in the following: