2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/119868Symplectic 4-manifolds with Kodaira dimension zero can be viewed as symplectic Calabi-Yau surfaces. We are able to completely determine their Betti numbers by proving two general results on quaternionic vector bundles.Symplectic GeometryMathematical PhysicsGeometric Topology57R57text