Location: IHP, room 201
The talks are broadcasted via Zoom:
https://zoom.us/j/89445897442?pwd=QmVZWHBiM2Nwb09yUVJERnYrSHJrUT09
10:45 Emmanuel Opshtein (Université de Strasbourg)
TBA.
Abstract:
TBA.
14:00 (Joint session with the Enumerative Geometry Seminar)
Sebastian Haney (Columbia University)
Open enumerative mirror symmetry for lines in the mirror quintic.
Abstract: One of the earliest achievements of mirror symmetry was the prediction of genus zero Gromov-Witten invariants for the quintic threefold in terms of period integrals on the mirror. Analogous predictions for open Gromov-Witten invariants in closed Calabi-Yau threefolds can be formulated in terms of relative period integrals on the mirror, which govern extensions of variations of Hodge structure. I will discuss work in which I construct an immersed Lagrangian in the quintic which supports a family of objects in the Fukaya category mirror to vector bundles on lines in the mirror quintic, and deduce its open Gromov-Witten invariants from homological mirror symmetry. The domain of this Lagrangian immersion is a closed 3-manifold obtained by gluing together two copies of a cusped hyperbolic 3-manifold. The open Gromov-Witten invariants of the Lagrangian are irrational numbers valued in the invariant trace field of the hyperbolic pieces.
15:45 Marco Robalo (Sorbonne Université)
TBA.
Abstract: TBA.
Next symplectix:
10/01, 7/03, 4/04
Other symplectic activity in Paris (and in France):
- CAST 2025 Workshop (6-8 February in Grenoble)- Séminaire Nantes-Orsay
- Symplectic Zoominar (every Fridays at 15:15 (except Symplectix' Fridays) Paris time)