Because of the attack on the computer network of the University of Duisburg-Essen, some content (in particular some image files) cannot be accessed because it is stored on central servers of the university.

Dr. Chirantan Chowdhury

Universität Duisburg-Essen
Fakultät für Mathematik
Raum WSC-S-3.09
45117 Essen

Office: WSC-S-3.09

Phone: +49 / (0)201 / 18-36177
Email: chirantanc474 - at -

Link to my personal website