# Counting embedded curves in symplectic six-manifolds

## Location

Zoom - Please join the math_symplectic email list through mailman.stanford.edu to receive the Zoom link and the password/

Monday, October 19, 2020 4:00 PM

Aleksander Doan (Columbia University)

The number of embedded pseudo-holomorphic curves in a symplectic

manifold typically depends on the choice of an almost complex

structure on the manifold and so does not lead to a symplectic

invariant. However, I will discuss two instances in which such naive

counting does define a symplectic invariant, which turns out to be

related to the Gopakumar-Vafa conjecture inspired by string theory.

The talk is based on joint work with Thomas Walpuski.