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.