# Symplectic Geometry Seminar

The seminar meets each Friday at 2:00 pm, with the venue alternating between Fine Hall 322 at Princeton and Simonyi Hall at the IAS. This seminar also has their own web pagePlease click on seminar title for complete abstract.

Organizer(s):

December 4, 2015
1:45pm - 2:45pm
##### Point-like bounding chains in open Gromov-Witten theory

Over a decade ago Welschinger defined invariants of real symplectic manifolds of complex dimensions 2 and 3, which count $J$-holomorphic disks with boundary and interior point constraints.

Location
Fine Hall 322
Speaker: Sara Tukachinsky,
Hebrew University of Jerusalem
December 18, 2015
2:00pm - 3:00pm
##### Absolute vs. Relative Gromov-Witten invariants

We compare absolute and relative Gromov-Witten invariants with the basic contact vector for very positive divisors. For such divisors, one might expect that these invariants are the same up to a natural multiple.

Location
IAS Room S-101