Spin curves over non-stable curves

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Here we consider degenerations of stable spin curves for a fixed smoothing of a non-stable curve: we are able to give enumerative results and a description of limits of stable spin curves. We give a geometrically meaningful definition of spin curves over non-stable curves.
New version, 25 pages, 9 figures

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Algebraic Geometry

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http://salesiana.dossiersoluciones.com/handle/123456789/130977

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0602420
 http://arxiv.org/abs/math/0602420

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arXiv