2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/62181In this paper we study some affine structures on nilpotent Lie algebras endowed with a contact form. These affine structures are constructed from an affine structure on a symplectic Lie algebra by a central extension.9 pagesRings and AlgebrasDifferential Geometry17Bxx, 53C05text