30 September 2025 to 3 October 2025
Palazzo del Castelletto
Europe/Rome timezone

Pseudo-holomorphic curves with a fixed complex structure in positive symplectic manifolds

2 Oct 2025, 16:00
1h
Aula Dini (Palazzo del Castelletto)

Aula Dini

Palazzo del Castelletto

Via del Castelletto, 17/1, 56126 Pisa PI

Speaker

Dr Alessio Cela (University of Cambridge)

Description

In this talk, I will show that fixed-domain Gromov–Witten invariants of a positive symplectic manifold (e.g., a smooth Fano variety) count J-holomorphic curves in X satisfying prescribed incidence conditions. This provides a symplectic analogue of a conjecture of Lian and Pandharipande, recently disproved in the algebraic setting by Beheshti, Lehmann, Lian, Riedl, Starr, and Tanimoto. The proof relies on constructing the fixed-domain Gromov–Witten pseudocycle without the use of inhomogeneous or domain-dependent perturbations, answering an old question posed by Ruan and Tian.

Primary author

Dr Alessio Cela (University of Cambridge)

Presentation materials

There are no materials yet.