Nombres de Betti des surfaces elliptiques réelles

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We prove a new bound for the number of connected components of a real regular elliptic surface with a real section and we show the sharpness of this bound. Furthermore, all possible values for the Betti numbers of such a surface are realized.
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Algebraic Geometry, 14P25 14J27

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http://salesiana.dossiersoluciones.com/handle/123456789/225182

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0604131
 http://arxiv.org/abs/math/0604131
 Beitraege Zur Algebra Und Geometrie 49 (2008) 153-164

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arXiv