A Stratification of the Hilbert Scheme of Points in the Projective Plane.
A threefold with and
About restricting 2-bundles on IP3 to planes.
Acerca del genero virtual de la superficies algebráicas.
Affine varieties and Lie algebras of vector fields.
Algebraic cycles and Hodge theory on generalized Reye congruences
Algebraic geometry and local differential geometry
Algorithmetical aspects of the problem of classifying multi-projections of veronesian varieties.
Ample divisors on the blow up of P3 at points.
Ample line bundles on smooth surfaces.
An affirmative answer to a question of Ciliberto.
An effective Bertini theorem over finite fields.
An example of two homeomorphic, nondiffeomorphic complete intersection surfaces.
An extremal property of Rokhlin' s inequality for real algebraic curves.
Analytic subsets of products of infinite-dimensional projective spaces.
Applications of iterated curve blow-up to set theoretic complete intersections in ...3.
Arithmetically normal sheaves
Arrangements of lines and monodromy of plane curves
Asymptotic behaviour of numerical invariants of algebraic varieties
We show that if the degree of a nonsingular projective variety is high enough, maximization of any of the most important numerical invariants, such as class, Betti number, and any of the Chern or middle Hodge numbers, leads to the same class of extremal varieties. Moreover, asymptotically (say, for varieties whose total Betti number is big enough) the ratio of any two of these invariants tends to a well-defined constant.