Visitors
- James Lewis: 13-19/7/2007
- Amnon Besser: 1-8/8/2007
- Victor Abrashkin: 6-10/12/2007
- Don Zagier: 27-29/2/2008
- Xavier-François Roblot: 28/2-1/3/2008
- James Lewis: 16-30/11/2008
- Herbert Gangl: 16-19/2/2009
- Spencer Bloch: 18-20/3/2009
- Spencer Bloch: 31/1-13/3/2010 (Stieltjes professor)
- James Lewis: 11-23/2/2010
- Jean-Louis Colliot-Thélène: 24/2/2010-26/2/2010
- Don Zagier: 24/2/2010
- Matthias Flach: 22/2/2010-26/2/2010
- Amnon Besser: 11/8/2010-27/8/2010
- Madhav Nori: 1-28/2/2011
- James Lewis: 6-13/3/2011
- James Lewis: 19-30/5/2012
- Alexander Rahm: 4-8/6/2012
- James Lewis: 10-18/11/2012