Differential Geometry

Pseudodifferential operators and characteristic classes for non-abelian cohomology.- Euclidean Yang-Mills flows in the orbit space.- Congruence, contact et reps 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 dune forme de contact.- Connexions singulieres et classe de Maslov.- Sur la cohomologie des systs dations diffntielles 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.