Equivariant gerbes over compact simple Lie groups

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Using groupoid $S^1$-central extensions, we present, for a compact simple Lie group $G$, an infinite dimensional model of $S^1$-gerbe over the differential stack $G/G$ whose Dixmier-Douady class corresponds to the canonical generator of the equivariant cohomology $H_G^3 (G, Z)$.
6 pages

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Symplectic Geometry, Mathematical Physics, Algebraic Geometry, Logic

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http://salesiana.dossiersoluciones.com/handle/123456789/67770

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0306183
 http://arxiv.org/abs/math/0306183
 C. R. Acad. Sci. Paris, Ser. I 336 (2003) 251-256

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arXiv