| Date | Speaker(s) | Title |
| 1 Jan 2009 | | To Be Announced |
| 8 Jan 2009 | | To Be Announced |
| 15 Jan 2009 | | To Be Announced |
| 22 Jan 2009 | | To Be Announced |
| 29 Jan 2009 | Augustin Banyaga, PSU | C^0 rigidity of the Poisson brackets and hamiltonian pseudo-representations, I |
| 5 Feb 2009 | Augustin Banyaga, PSU | C^0 rigidity of the Poisson bracket and hamiltonian pseudo representation ,II |
| 12 Feb 2009 | Peter Spaeth, PSU | On the Le Roux's fragmentation lemma |
| 19 Feb 2009 | Vivek Srikrishnan, PSU | TBA |
| 26 Feb 2009 | Yong-Geun Oh, University of Wisconsin, Madison | Replaced by the Joint GAP/Symplectic Topology Seminar on 2/24 |
| 5 Mar 2009 | Sergei Tabachnikov, PSU | Pseudo-Riemannian geodesics and billiards |
| 12 Mar 2009 | | No seminar ( spring break) |
| 19 Mar 2009 | Alain Albouy, Observatoire de Paris, CNRS | The S0(4) Symmetry of the Kepler Problem - a simple proof |
| 26 Mar 2009 | Helmut Hofer, Courant Institute, NY University | A generalized Fredholm and the Gromov-Witten example I and II |
| 2 Apr 2009 | Helmut Hofer, Courant and Princeton | A generalized Fredholm and Gromov-Witten example, II |
| 9 Apr 2009 | Robert Foote, Wabash College | Planimeters and isoperimetrics inequalities on constant curvature surfaces |
| 16 Apr 2009 | Luca Stefanini, PSU | The moment map in Poisson geometry |
| 23 Apr 2009 | Vivek Srikrishnan, PSU | TBA |
24 Apr 2009 MB106 2:30pm - 3:20pm | Luca Stefanini, PSU | The momentum map in Poisson geometry |
| 30 Apr 2009 | Ian Marshall, PSU | The Dynamical Yang-Baxter on a Poisson-Lie group |
| 7 May 2009 | Aissa Wade, PSU | Generalized complex structures and their odd-dimensional counterparts |
| 14 May 2009 | | No seminar |