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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Ciro Ciliberto, Rita Pardini, Francesca Tovena (2000)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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Luis Giraldo, Ignacio Sols (1998)
Collectanea Mathematica
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Let S be a ruled surface in P3 with no multiple generators. Let d and q be nonnegative integers. In this paper we determine which pairs (d,q) correspond to the degree and irregularity of a ruled surface, by considering these surfaces as curves in a smooth quadric hypersurface in P5.
Margarita Mendes Lopes (2004)
Collectanea Mathematica
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In 1985 Xiao Gang proved that the bicanonical surface of a complex surface S of general type with p2(S) > 2 is not composed of a pencil. In this note a new proof of this theorem is presented.
Emilia Mezzetti, Dario Portelli (1998)
Collectanea Mathematica
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Ferraro, R. (2003)
Advances in Geometry
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Edoardo Ballico, N. Chiarli, S. Greco (2004)
Collectanea Mathematica
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We find some ranges for the 4-tuples of integers (d,g,n,r) for which there is a smooth connected non-degenerate curve of degree d and genus g, which is k-normal for every k ≤ r.
R. V. Gurjar, A. J. Parameswaran (1995)
Compositio Mathematica
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Konno, K. (2000)
Portugaliae Mathematica
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Fumio Sakai (1983)
Compositio Mathematica
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