Divisorial contractions in dimension three which contract divisors to compound A_1 points

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We deal with a divisorial contraction in dimension 3 which contracts its exceptional divisor to a cA_1 point. We prove that any such contraction is obtained by a suitable weighted blow-up.
23 pages

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Algebraic Geometry, 14E30

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http://salesiana.dossiersoluciones.com/handle/123456789/60176

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0010207
 http://arxiv.org/abs/math/0010207

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arXiv