Picard Numbers of Surfaces in 3-Dimensional Weighted Projective Spaces.
Picard-Borel-Räume.
Plane curves of genus p and degree 2p as projections of space curves of the same degree.
Plane projections of a smooth space curve
Let C be a smooth non-degenerate integral curve of degree d and genus g in over an algebraically closed field of characteristic zero. For each point P in let be the linear system on C induced by the hyperplanes through P. By one maps C onto a plane curve , such a map can be seen as a projection of C from P. If P is not the vertex of a cone of bisecant lines, then will have only finitely many singular points; or to put it slightly different: The secant scheme parametrizing divisors in...
Plücker conditions on plane rational curves.
Polar classes of singular varieties
Poncelet 5-gons and abelian surfaces.
Postulation and gonality for projective curves
Poznámka o prostorové kollineaci
Projective 7-folds with positive defect
Projective bundles on infinite-dimensional complex spaces.
Projective Models Enriques Surfaces.
Projective normality and equations of Kummer varieties.
Projective quartics revisited
We classify all smooth projective varieties of degree 4 and describe their syzygies.
Projective schemes with degenerate general hyperplane section.
Projective schemes with degenerate general hyperplane section. II.
Projektive Einbettung komplexer Mannigfaltigkeiten.