Orbifold Cohomology of the Symmetric Product

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Chen and Ruan's orbifold cohomology of the symmetric product of a complex manifold is calculated. An isomorphism of rings (up to a change of signs) $H_{orb}^*(X^n/S_n;\complex) \cong H^*(X^{[n]};\complex)$ between the orbifold cohomology of the symmetric product of a smooth projective surface with trivial canonical class $X$ and the cohomology of its Hilbert scheme $X^{[n]}$ is obtained, yielding a positive answer to a conjecture of Ruan.
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Algebraic Topology, Algebraic Geometry

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http://salesiana.dossiersoluciones.com/handle/123456789/62220

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0109125
 http://arxiv.org/abs/math/0109125

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arXiv