Polytopia project

The Polytopia project is a project of the Collaborative Research Center SFB / TRR 109 “Discretization in Geometry and Dynamics” funded by the German Research Association e.V (DFG)

The SFB / TRR 109 is represented by its spokesman:

Authorized representative according to §5 TMG is:


Liability for content

The contents of our page were created with great care. However, we cannot assume any liability for the accuracy, completeness, and up-to-dateness of the content. As a service provider, we are responsible according to §7 Abs.1 TMG for our own contents on these sites according to the general laws. According to §§8 to 10 TMG however, we as a service provider are not obliged to monitor transmitted or stored external information or to investigate circumstances that indicate illegal activity. Obligations to remove or block the use of information under general law remain unaffected. A liability in this regard, however, is only possible from the date of knowledge of a specific infringement. Upon notification of appropriate violations, we will remove this content immediately.

Liability for links

Our offer contains links to external websites of third parties on whose contents we have no influence. Therefore, we cannot assume any liability for these external contents. The respective provider or operator of the pages is always responsible for the contents of the linked pages. The linked pages were checked for possible legal violations at the time of linking. Illegal content was not recognizable at the time of linking. However, a permanent content control of the linked pages is not reasonable without concrete evidence of an infringement. Upon notification of violations, we will remove such links immediately.


The content and works on these pages created by the site operators are subject to German copyright law. The reproduction, processing, distribution, and any kind of exploitation outside the limits of copyright require the written consent of the respective author or creator. Downloads and copies of this site are for private, non-commercial use only. As far as the contents on this side were not created by the operator, the copyrights of third parties are considered. In particular contents of third parties are marked as such. If you should still be aware of a copyright infringement, we ask for a note. Upon notification of violations, we will remove such content immediately.

Data Protection

All relevant information can be found in our privacy policy.


Our sincerest thanks to all who contributed to the creation and alterations of our websites.

Max Pohlenz - Design
Marie-Charlotte Brandenburg - 3D View and quests
Stefan Auerbach & Martin Skrodzki - Web Development
Moritz Firsching - Support in the creation of polyhedron nets
Pauline Linke - Support in the creation of didactic materials
Erin Henning - Head of Social Media
Johanna Steinmeyer - Support in the creation of didectic materials and TIKZ artist
Deutsche Mathematiker-Vereinigung - Hosting, press support

Special thanks to:
Stefan Korntreff, Gudrun Tisch, Anikó Ramshorn-Bircsak and their pupils.