2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/69469In this paper we prove the unobstructedness of the deformation of integral coisotropic submanifolds in symplectic manifolds, which can be viewed as a natural generalization of results of Weinstein for Lagrangian submanifolds.revised versionSymplectic Geometrytext