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Contact

e-mail hellwigf@math.hu-berlin.de
phone 030 2093 5498

Office

Rudower Chaussee 25, 12489 Berlin, Germany
John-von-Neumann-Haus,
room 2.413 (house 2, 4th floor)

Post address

Institut für Mathematik
Humboldt-Universität zu Berlin
Unter den Linden 6
10099 Berlin
Germany

E-mail encryption

For encrypted e-mails, I provide my public PGP key, see also more information on PGP and a nice tutorial for setup.

The photo on the home page is a modified version of this image, Copyright MFO under licence CC-BY-SA 2.0 de.