To reach the Institute of Mathematics of Humboldt University from Mitte, please take the S-Bahn from

the Friedrichstrasse Banhof in the direction East, and get off at the station Ostkreuz. Here

you change for the S8 or S9 line (upstairs), in the direction Grünau (S8) or Schönefeld (S9).

You get off at the station Adlershof, where the Science Campus of the Humboldt University

is located.  Here you walk along the Rudower Chaussee for 8-10 minutes, till you reach number

25.  Here is a map of the campus.

The trip from Mitte to Adlershof, takes over one hour, please allow enough time.

For more information about the public transportation in Berlin check the BVG page.