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Projective normality of special scrolls

Luis Fuentes Garcia·Manuel Pedreira Perez
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Abstract

We study the projective normality of a linearly normal special scroll R of degree d and speciality i over a smooth curve of genus g. If d>=4g-2i+1, we prove that the projective normality of the scroll is equivalent to the projective normality of its directrix curve of minimum degree.

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Luis Fuentes Garcia, Manuel Pedreira Perez. 2002-03-25. Projective normality of special scrolls. https://arxiv.org/abs/math/0203257

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