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arXiv:math/0306182 [math.DG]AbstractReferencesReviewsResources

S^1-bundles and gerbes over differentiable stacks

Kai Behrend, Ping Xu

Published 2003-06-11Version 1

We study $S^1$-bundles and $S^1$-gerbes over differentiable stacks in terms of Lie groupoids, and construct Chern classes and Dixmier-Douady classes in terms of analogues of connections and curvature.

Comments: 6 pages
Journal: published in C. R. Acad. Sci. Paris, Ser. I 336 (2003) 163-168
Categories: math.DG, math-ph, math.AG, math.MP
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