Algebraic Geometry

Infinitesimal deformations of negative weights and hyperplane sections.- On k-spanned projective surfaces.- On K-spannedness for projective surfaces.- On the hyperplane sections of ruled surfaces.- Footnotes to a theorem of I. Reider.- An obstruction to moving multiples of subvarieties.- Half-canonical surfaces in IP4.- Groupes de points de P2: Caractere et position uniforme.- On singular Del Pezzo varieties.- Abelian surfaces in products of projective spaces.- Embedded projective varieties of small invariants. III.- On the existence of some surfaces.- On the pluriadjoint maps of polarized normal gorenstein surfaces.- On the adjoint line bundle to an ample and spanned one.- Quadrics through a canonical surface.- Infinitesimal view of extending a hyperplane section - deformation theory and computer algebra.- Toward abel-jacobi theory for higher dimensional varieties.- Reider-serrano's method on normal surfaces.