- University of California at San Diego
- North Carolina State University
External person
- Michigan State University
External person
- Ecole Normale Superieure de Lyon
External person
- Humboldt University of Berlin
External person
- Dipartimento di Matematica
- University of Rome Tor Vergata
External person
- University of Stellenbosch
External person
- University of California at Berkeley
External person
- University of Rome La Sapienza
External person