On symplectic homology of the complement of a normal crossing divisor

Princeton/IAS Symplectic Geometry Seminar
Topic:On symplectic homology of the complement of a normal crossing divisor
Speaker:Khoa Nguyen
Affiliation:Stanford University
Date:Friday, April 3
Time/Room:1:30pm - 2:30pm/S-101

In this talk, we discuss our work in progress about how degeneration of the divisor at infinity into a normal crossing divisor affects the symplectic homology of an affine variety. From an anti-surgery picture, by developing an anti-surgery formula for symplectic homology similar to work by Bourgeois-Ekholm-Eliashberg, we show that essentially, the change in symplectic homology is reflected by the Hochschild invariants of the Fukaya category of a collection of Lagrangian spheres on the smooth divisor.