Geodesic
Twisted character varieties, covering spaces, and gerbes
Teoretičeskaâ i matematičeskaâ fizika, Tome 185 (2015) no. 3, pp. 471-494 Cet article a éte moissonné depuis la source Math-Net.Ru

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For a finite-index subgroup $\widetilde\Pi$ of a finitely generated group $\Pi$, we establish various relations between (twisted) character varieties of $\Pi$ and $\widetilde\Pi$. We interpret our results geometrically in terms of the moduli space of flat connections on principal bundles twisted by a flat bundle gerbe over a manifold with the fundamental group $\Pi$.
Mots-clés : moduli space, gerbe
Keywords: character variety, twisted bundle. 
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S. Wu. Twisted character varieties, covering spaces, and gerbes. Teoretičeskaâ i matematičeskaâ fizika, Tome 185 (2015) no. 3, pp. 471-494. http://geodesic.mathdoc.fr/item/TMF_2015_185_3_a5/

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