Higgs bundles and the real symplectic group

Details Higgs bundles and the real symplectic group Higgs bundles and the real symplectic group

2011-02-21

arxiv.org/abs/1102.4175v2

Mathematics

Differential Geometry

12 pages

Scientific paper

We give an overview of the work of Corlette, Donaldson, Hitchin and Simpson leading to the non-abelian Hodge theory correspondence between representations of the fundamental group of a surface and the moduli space of Higgs bundles. We then explain how this can be generalized to a correspondence between character varieties for representations of surface groups in real Lie groups G and the moduli space of G-Higgs bundles. Finally we survey recent joint work with Bradlow, Garc\'ia-Prada and Mundet i Riera on the moduli space of maximal Sp(2n,R)-Higgs bundles.

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