|Princeton/IAS Symplectic Geometry Seminar|
|Topic:||Higher ribbon graphs|
|Affiliation:||University of California, Berkeley|
|Date:||Monday, March 12|
|Time/Room:||4:00pm - 5:00pm/Simonyi Hall 101|
Ribbon graphs capture the topology of open Riemann surfaces in an elementary combinatorial form. One can hope this is the first step toward a general theory for open symplectic manifolds such as Stein manifolds. We will discuss progress toward such a higher dimensional theory (joint work with Alvarez-Gavela, Eliashberg, and Starkston), and in particular, what kind of topological spaces might generalize graphs. We will also discuss applications to the calculation of symplectic invariants.