Factorial hypersurfaces in P^4 with nodes

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We prove that for n= 5, 6, 7, a nodal hypersurface of degree n in P^4 is factorial if it has at most (n-1)^2-1 nodes.
12 pages

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Algebraic Geometry

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http://salesiana.dossiersoluciones.com/handle/123456789/105110

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0511673
 http://arxiv.org/abs/math/0511673

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arXiv