2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/139326In this paper we construct the Floer homology for an action functional which was introduced by Rabinowitz and prove a vanishing theorem. As an application, we show that there are no displaceable exact contact embeddings of the unit cotangent bundle of a sphere of dimension greater than three into a convex exact symplectic manifold with vanishing first Chern class. This generalizes Gromov's result that there are no exact Lagrangian embeddings of a sphere into a complex vector space.43 pages, 1 figureSymplectic Geometry53D10, 53D40text