Rational blow-downs and smoothings of surface singularities

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In this paper we give a necessary combinatorial condition for a negative--definite plumbing tree to be suitable for rational blow--down, or to be the graph of a complex surface singularity which admits a rational homology disk smoothing. New examples of surface singularities with rational homology disk smoothings are also presented; these include singularities with resolution graph having valency four nodes.
61 pages, 28 figures

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Geometric Topology, Algebraic Geometry

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http://salesiana.dossiersoluciones.com/handle/123456789/156759

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0611157
 http://arxiv.org/abs/math/0611157

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arXiv