19 avril 2021 à 16 juillet 2021
IHP
Fuseau horaire Europe/Paris

Tropical Fukaya Algebras

18 juin 2021, 10:45
1h
Amphithéatre Darboux (IHP)

Amphithéatre Darboux

IHP

Paris

Orateur

Sushmita Venugopalan (Institute of Mathematical Sciences, Chennai)

Description

A multiple cut operation on a symplectic manifold produces a collection of cut spaces, each containing relative normal crossing divisors. We explore what happens to curve count-based invariants when a collection of cuts is applied to a symplectic manifold. The invariant we consider is the Fukaya algebra of a Lagrangian submanifold that is contained in the complement of relative divisors. The ordinary Fukaya algebra in the unbroken manifold is homotopy equivalent to a broken Fukaya algebra' whose structure maps countbroken disks' associated with rigid tropical graphs. Via a further degeneration, the broken Fukaya algebra is homotopy equivalent to a `tropical Fukaya algebra' whose structure maps are sums of products over vertices of tropical graphs. This is joint work with Chris Woodward.

Documents de présentation