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Moduli of flat connections in positive c...
Groechenig, Michael...
Moduli of flat connections in positive characteristic by Groechenig, Michael ( Author )
Australian National University
12-07-2023
Exploiting the description of rings of differential operators as Azumaya algebras on cotangent bundles, we show that the moduli stack of flat connections on a curve (allowed to acquire orbifold points) defined over an algebraically closed field of positive characteristic is \'etale locally equivalent to a moduli stack of Higgs bundles over the Hitchin base. We then study the interplay with stability and generalize a result of Laszlo-Pauly, concerning properness of the Hitchin map. Using Arinkin's autoduality of compactified Jacobians we extend the main result of Bezrukavnikov-Braverman, the Langlands correspondence for D-modules in positive characteristic for smooth spectral curves, to the locus of integral spectral curves.
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Article
pdf
29.34 KB
English
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MYR 0.01
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http://arxiv.org/abs/1201.0741
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