| Travel | ||||
| December 10, 2011 - March 31, 2012 | Visiting Professor | Tokyo Institute of Technology | ||
| December 21, 2011 | Seminar | Tokyo Institute of Technology, Topology Seminar | ||
| January 30, 2012 | Colloquium | Tohoku University | ||
| March 5, 2012 - March 8, 2012 | Workshop: Branched Coverings, Degenerations, and Related Topics, | Hiroshima University | ||
| August 26, 2012 - September 1, 2012 | Workshop: Topology and Number Theory | Oberwolfach, Germany | ||