Princeton/IAS Symplectic Geometry Seminar

Topic: Higher ribbon graphs

Speaker: David Nadler

Affiliation: University of California, Berkeley

Date & Time: Monday March 12th, 2018, 4:00pm - 5:00pm

Location: 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.