Higher Noether-Lefschetz loci of elliptic surfaces

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We calculate the dimension of the locus of elliptic surfaces over P^1 with a section and a given Picard number, in the corresponding moduli space.
Second version; some simplifications, several minor changes

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Algebraic Geometry, 14J27 (Primary); 14D07, 14J10, 14C22 (Secondary)

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http://salesiana.dossiersoluciones.com/handle/123456789/101044

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0501454
 http://arxiv.org/abs/math/0501454

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arXiv