Effective bounds for semipositive sheaves and for the height of points on curves over complex function fields
Ein ?Descente"-Lemma und Grothendiecks Projektionssatz für nicht-noethersche Schemata.
Ein Kriterium für vollständige Durchschnitte.
Ein Satz über die Einschränkung holomorpher Vektorbündel auf Pn mit c1 = 0 auf Hyperebenen.
Einschränkung stabiler Vektorraumbündel vom Rang 3 Hyperebenen des projectiven Raumes.
Entropy, homology and semialgebraic geometry
Enumerative geometry of degeneracy loci
Equivalence of families of singular schemes on threefolds and on ruled fourfolds.
The main purpose of this paper is twofold. We first analyze in detail the meaningful geometric aspect of the method introduced in [12], concerning families of irreducible, nodal curves on a smooth, projective threefold X. This analysis gives some geometric interpretations not investigated in [12] and highlights several interesting connections with families of other singular geometric objects related to X and to other varieties. Then we use this method to study analogous problems for families of...
Equivariant sheaves on toric varieties
Equivariant vector bundles on toric varieties and some problems of linear algebra
Equivariant vector bundles over affine subsets of the projective line
Ergänzung zu der Arbeit: Vektorbündel vom Rang 2 über dem n-dimensionalen komplex-projektiven Raum.
Erratum to : Morphisms, line bundles and moduli spaces in real algebraic geometry
Examples of abelian surfaces in P4.
Examples of non-ample normal bundles
Exceptional collections on isotropic Grassmannians
We introduce a new construction of exceptional objects in the derived category of coherent sheaves on a compact homogeneous space of a semisimple algebraic group and show that it produces exceptional collections of the length equal to the rank of the Grothendieck group on homogeneous spaces of all classical groups.
Exemples de courbes de P3 à fibré normal semi-stable, stable.
Existence de faisceaux réflexifs de rang deux sur à bonne cohomologie
Existence of Rank 3 Vector Bundles with Given Chern Classes on Homogeneous Rational 3-Folds.
Explicit cogenerators for the homotopy category of projective modules over a ring
Let be a ring. In two previous articles [12, 14] we studied the homotopy category of projective -modules. We produced a set of generators for this category, proved that the category is -compactly generated for any ring , and showed that it need not always be compactly generated, but is for sufficiently nice . We furthermore analyzed the inclusion and the orthogonal subcategory . And we even showed that the inclusion has a right adjoint; this forces some natural map to be an equivalence...