Cauchy uniqueness in the Riemannian obstacle problem -- Non-abelian hodge theory via heat flow -- Non abelian Poincare lemma -- Le Problème de Yamabe concernant la courbure scalaire -- Finite type spherical submanifolds -- Mappings between manifolds with cartan connections -- Invariants integraux fonctionnels pour des equations aux derivees partielles d'origine geometrique -- Hermitian natural differential operators -- An example of an almost cosymplectic homogeneous manifold -- Positive solutions of the heat and eigenvalue equations on riemannian manifolds -- Etude des algebres de Lie resolubles reelles qui admettent des ideaux unidimensionnels n'appartenant pas au centre -- The Iwasawa manifold -- Connected sums and the infimum of the Yamabe functional -- Isoclinic webs W(4,2,2) of maximum 2-rank -- Almost transversally symmetric foliations -- Uniformization of geometric structures with aplications to conformal geometry -- Representation coadjointe quotient et espaces homogenes de contact -- On a geometric generalization of the noether theorem -- The isoperimetric inequality and the geodesic spheres. Some geometric consequences -- On the K-dimensional radon-transform of rapidly decreasing functions -- Kaehler submanifolds in the complex project space -- Volume-preserving geodesic symmetries on four-dimensional Kähler manifolds -- The cohomology and geometry of Heisenberg-Reiter nilmanifolds -- Totally real submanifolds of a complex projective space.