2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/119148In this article, we construct infinitley many simply connected, nonsymplectic and pairwise nondiffeomorphic 4-manifolds starting from E(n) and applying the sequence of knot surgery, ordinary blowups and rational blowdown. We also compute the Seiberg-Witten invariants of these manifolds.10 pagesGeometric Topologytext