Visiting Professor
- Institut Henri Poincare, Paris, France, January-April 2015
- NYU & ECNU, Shanghai, China, August-December 2014
- UCD, Dublin, Ireland, July-August 2011
- Schroedinger Institute, Dublin, Ireland, July 2010
- Weierstrass Institute, Berlin, Germany, July-August 2009
- Weierstrass Institute, Berlin, Germany, June-July 2008
- Tokyo Institute of Technology, Japan, July-August 2007