Pseudodifferential operators and characteristic classes for non-abelian cohomology -- Euclidean Yang-Mills flows in the orbit space -- Congruence, contact et repรจres de Frenet -- Killing vector fields and complex structures -- Derivations in the tangent bundle -- Some examples of deformations of transversely holomorphic foliations -- Sur certaines expressions globales dโ{128}{153}une forme de contact -- Connexions singulieres et classe de Maslov -- Sur la cohomologie des systรจmes dโ{128}{153}รฉquations diffรฉrentielles et des pseudogroupes de lie -- Energies et geometrie integrale -- Geometry and cohomologies associated with a contact manifold -- A note on semisimple flat homogeneous spaces -- Some results on diff?(R n) -- Some integral invariants of plane fields on riemannian manifolds -- A Schur-like Lemma for the NK-manifolds of constant type -- Compact Hausdorff foliations -- Nijenhuis tensor field and weakly Kahler manifolds -- Generic embeddings, Gauss maps and stratipications -- Spectral geometry of submanifolds in the complex projective space -- Self-dual and anti-self-dual homogeneous structures