On the minimal hypersurfaces of a locally symmetric manifold -- The spectral geometry of the laplacian and the conformal laplacian for manifolds with boundary -- Minimal immersions of Rp2 into ?pn -- Isoptics of a closed strictly convex curve -- Generalized cayley surfaces -- On a certain class of conformally flat Euclidean hypersurfaces -- Self-dual manifolds with non-negative ricci operator -- On the obstruction group to existence of riemannian metrics of positive scalar curvature -- Compact manifolds with 1/4-pinched negative curvature -- The geometry of moduli spaces of stable vector bundles over riemann surfaces -- A canonical connection for locally homogeneous riemannian manifolds -- Some improper affine spheres in A 3 -- A maximum principle at infinity and the topology of complete embedded surfaces with constant mean curvature -- Affine completeness and euclidean completeness -- On Submanifolds with parallel higher order fundamental form in euclidean spaces -- Convex affine surfaces with constant affine mean curvature -- Transversal curvature and tautness for riemannian foliations -- Schrödinger operators associated to a holomorphic map -- Generic existence of morse functions on infinite dimensional riemannian manifolds and applications -- Some extensions of radon's theorem -- Generalized killing spinors with imaginary killing function and conformal killing fields -- On prolongation and invariance algebras in superspace -- On the veronese embedding and related system of differential equations -- Generalizations of harmonic manifolds -- Diffeomorphism groups, pseudodifferential operators and r-matrices -- On the theory of G-webs and G-loops -- Some examples of complete hyperbolic affine 2-spheres in ?3.