Honors
- Honorary Advisory Professor, Tonji-University, Shanghai (1999)
- Elected Member Nationale Akademie der Wissenschaften Leopoldina (2000)
- Elected Member Berlin-Brandenburgische Akademie der Wissenschaften (2002)
- Chairman for Pure Mathematics Nationale Akademie der Wissenschaften Leopoldina (2006)
- Vice Senator for Mathematics Nationale Akademie der Wissenschaften Leopoldina (2006)
- Elected Member Academia Europaea (2008)
- Senator for Mathematics Nationale Akademie der Wissenschaften Leopoldina (2011)
- Chairman of the section Mathematics Academia Europaea (2011)