|Princeton/IAS Symplectic Geometry Seminar|
|Topic:||Gopakumar-Vafa conjecture for symplectic manifolds|
|Date:||Friday, November 22|
|Time/Room:||1:30pm - 2:30pm/Fine 322, Princeton University|
The Gopakumar-Vafa conjecture predicts that the Gromov-Witten invariants of a Calabi-Yau 3-fold can be canonically expressed in terms of integer invariants called BPS numbers. In this talk, based on joint work with Tom Parker, I describe the proof of this conjecture, coming from a more general structure theorem for the Gromov-Witten invariants of symplectic 6-manifolds.