The Witten genus and equivariant elliptic cohomology

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We construct a Thom class in complex equivariant elliptic cohomology extending the equivariant Witten genus. This gives a new proof of the rigidity of the Witten genus, which exhibits a close relationship to recent work on non-equivariant orientations of elliptic spectra.
22 pages. Added section on example of virtual bundles over a point

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Algebraic Topology, 57R91

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http://salesiana.dossiersoluciones.com/handle/123456789/59796

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0008192
 http://arxiv.org/abs/math/0008192

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arXiv