Invariance of immersed Floer cohomology under Lagrangian surgery

22 Jun 2020 Palmer Joseph Woodward Chris

We show that cellular Floer cohomology of an immersed Lagrangian brane is invariant under smoothing of a self-intersection point if the quantum valuation of the weakly bounding cochain vanishes and the Lagrangian has dimension at least two. The chain-level map replaces the two orderings of the self-intersection point with meridianal and longitudinal cells on the handle created by the surgery, and uses a bijection between holomorphic disks developed by Fukaya-Oh-Ohta-Ono... (read more)

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  • SYMPLECTIC GEOMETRY