2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/59031Let X be a complex Fano-manifolds with second Betti-number 1 which carries a contact structure. It follows from previous work that such a manifold can always be covered by lines. Thus, it seems natural to consider the geometry of lines in greater detail. In this brief note we show that if x in X is a general point, then all lines through x are smooth. If X is not the projective space, then the tangent spaces to lines generate the contact distribution at x. As a consequence we obtain that the contact structure on X is unique, a result previously obtained by C. LeBrun in the case that X is a twistor space.reason for resubmission: improved expositionAlgebraic GeometryDifferential GeometryPrimary 53C25, Secondary 14J45, 53C15Uniqueness of complex contact structurestext