Lines on del Pezzo surfaces with in characteristic 2 in the smooth case.
Cragnolini, P., Oliverio, P.A. (2000)
Portugaliae Mathematica
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Displaying similar documents to “Rolling factors deformations and extensions of canonical curves.”
Lines on del Pezzo surfaces with in characteristic 2 in the smooth case.
Canonical models of surfaces of general type in positive characteristic
Torsten Ekedahl (1988)
Publications Mathématiques de l'IHÉS
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Halphen pencils on weighted Fano threefold hypersurfaces
Ivan Cheltsov, Jihun Park (2009)
Open Mathematics
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On a general quasismooth well-formed weighted hypersurface of degree Σi=14 a i in ℙ(1, a 1, a 2, a 3, a 4), we classify all pencils whose general members are surfaces of Kodaira dimension zero.
Elliptic fibres on Enriques surfaces
G. Angermüller, W. Barth (1982)
Compositio Mathematica
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Linear systems representing threefolds which are scrolls on a rational surface.
Emilia Mezzetti, Dario Portelli (1998)
Collectanea Mathematica
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Canonical surfaces with and
Ciro Ciliberto (1982)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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On surfaces with and non-birational bicanonical maps.
Ciliberto, Ciro, Mendes Lopes, Margarida (2002)
Advances in Geometry
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Prym varieties and the canonical map of surfaces of general type
Ciro Ciliberto, Rita Pardini, Francesca Tovena (2000)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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Some examples of Gorenstein liaison in codimension three.
Robin Hartshorne (2002)
Collectanea Mathematica
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Gorenstein liaison seems to be the natural notion to generalize to higher codimension the well-known results about liaison of varieties of codimension 2 in projective space. In this paper we study points in P3 and curves in P4 in an attempt to see how far typical codimension 2 results will extend. While the results are satisfactory for small degree, we find in each case examples where we cannot decide the outcome. This examples are candidates for counterexamples to the hoped-for extensions...