3-Folds in P5 of Degree 12.
3-Mannigfaltigkeiten im ...5 und ihre zugehörigen stabilen Garben.
A bound for the degree of smooth surfaces in not of general type
A computer aided approach to codimension 2 subvarities of Pn, n ... 6.
A filtered Bertini-type theorem.
A home-made Hartshorne-Serre correspondence.
A linear bound on the t-normality of codimension two subvarieties of ...n.
A series of smooth irregular varieties in projective space
An improved bound for the degree of smooth surfaces in not of general type
Birational invariants of algebraic varieties.
Boundedness for codimension two submanifolds of quadrics.
It is proved that there are only finitely many families of codimension two subvarieties not of general type in Q6.
Boundedness for threefolds in P6 containing a smooth ruled surface as hyperplane section.
Let X ⊂ P6 be a smooth irreducible projective threefold, and d its degree. In this paper we prove that there exists a constant β such that for all X containing a smooth ruled surface as hyperplane section and not contained in a fourfold of degree less than or equal to 15, d ≤ β. Under some more restrictive hypothesis we prove an analogous result for threefolds containing a smooth ruled surface as hyperplane section and contained in a fourfold of degree less than or equal to 15.
Canonical models of surfaces of general type
Classical Godeaux Surface in Characteristic P.
Classification of algebraic varieties, I
Classification of Buchsbaum subvarieties of codimension 2 in projective space.
Classification of conic bundles in
Classifying Hilbert functions of fat point subschemes in P^2.
Codimension 2 subvarieties of projective space.
Codimension Arithmetically Gorenstein Subschemes of projective -space
We study the lowest dimensional open case of the question whether every arithmetically Cohen–Macaulay subscheme of is glicci, that is, whether every zero-scheme in is glicci. We show that a general set of points in admits no strictly descending Gorenstein liaison or biliaison. In order to prove this theorem, we establish a number of important results about arithmetically Gorenstein zero-schemes in .