| April 2011 | Boston College |
Randomness in Number Theory |
| April 2011 | Harvard University |
Harvard Topology Conference |
| May 2011 | Columbia University |
Integrable Systems in honor of Igor Krichever |
| May 2011 | Institute for Advanced Study |
Sheaf Theory in Symplectic Geometry |
| May 2011 | Harvard University |
Clay Research Conference |
| April 2012 | Institute for Advanced Study |
Helmut Hofer Eight Lectures on Polyfolds |
| May 2012 | Princeton University |
Panorama of Topology in honor of William Browder |
| May 2012 | CUNY Graduate Center |
Arithmetic Geometry on the occasion of the 70th birthday of Lucien Szpiro |
| May 2012 | Princeton NJ | Princeton Snapshots 2011-2012 |