2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/209493This is the first of five papers that construct an isomorphism between the embedded contact homology and Seiberg-Witten Floer cohomology of a compact 3-manifold with a given contact 1-form. This paper describes what is involved in the construction.Arguments in the Appendix are simplifiedGeometric TopologySymplectic Geometry57R17; 57R57text