An Excision Theorem in Heegaard Floer Theory

Series
Geometry Topology Seminar
Time
Monday, November 10, 2025 - 2:00pm for 1 hour (actually 50 minutes)
Location
Skiles 006
Speaker
Neda Bagherifard – Georgia Tech
Organizer
Jennifer Hom

In this talk, I will describe an excision construction for 3-manifolds and explain how (twisted) Heegaard Floer theory can be used to obstruct 3-manifolds from being related via such constructions. I will also discuss how the excision formula can be applied to compute twisted Heegaard Floer homology groups for specific 3-manifolds obtained by performing surgeries on certain links, including some 2-bridge links.