Lagrangian spheres in S^2 x S^2

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/69104We prove that all Lagrangian spheres in S^2 x S^2 are Hamiltonian isotopic. The proof uses various properties of holomorphic curves in symplectic manifolds with cylindrical ends which were recently developed in connection with the Symplectic Field Theory.Symplectic GeometryDifferential Geometry53D12Lagrangian spheres in S^2 x S^2text