2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/63896We describe a simplification of Donaldson's arguments for the construction of symplectic hypersurfaces or Lefschetz pencils that makes it possible to avoid any reference to Yomdin's work on the complexity of real algebraic sets.8 pagesDifferential GeometrySymplectic Geometrytext