Concernant la cohomologie des fibres algebriques stables sur ?n (?) -- Some rank two bundles on Pn?, whose chern classes vanish -- Deformations of sheaves and bundles -- Deformations a un parametre de varietes simples -- On the local torelli theorem, a review of known results -- Moduli in versal deformations of complex spaces -- Geometrie enumerative pour les multisecantes -- Complex cobordism and intersections of projective varieties -- Analycite separee et prolongements analytiques -- Topological properties of holomorphic and meromorphic mappings -- On the stability of holomorphic foliations with all leaves compact.