Research output: Contribution to journal › Article
Hitchin's equations on a nonorientable manifold. / Ho, Nankuo; Wilkin, Graeme Peter Desmond; Wu, Siye.
In: Communications in Analysis and Geometry, Vol. 26, No. 4, 06.09.2018, p. 857-886.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Hitchin's equations on a nonorientable manifold
AU - Ho, Nankuo
AU - Wilkin, Graeme Peter Desmond
AU - Wu, Siye
N1 - This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.
PY - 2018/9/6
Y1 - 2018/9/6
N2 - We define Hitchin’s moduli space for a principal bundle P, whose structure group is a compact semisimple Lie group K, over a compact non-orientable Riemannian manifold M. We use the Donaldson–Corlette correspondence, which identifies Hitchin’s moduli space with the moduli space of flat connections, which remains valid when M is non-orientable. This enables us to study Hitchin’s moduli space both by gauge theoretical methods and algebraically by using representation varieties. If the orientable double cover M~ of M is a Kähler manifold with odd complex dimension and if the Kähler form is odd under the non-trivial deck transformation τ on M~, Hitchin’s moduli space of the pull-back bundle has a hyper-Kähler structure and admits an involution induced by τ. The fixed-point set is symplectic or Lagrangian with respect to various symplectic structures on the moduli space. We compare the gauge theoretical constructions with the algebraic approach using representation varieties.
AB - We define Hitchin’s moduli space for a principal bundle P, whose structure group is a compact semisimple Lie group K, over a compact non-orientable Riemannian manifold M. We use the Donaldson–Corlette correspondence, which identifies Hitchin’s moduli space with the moduli space of flat connections, which remains valid when M is non-orientable. This enables us to study Hitchin’s moduli space both by gauge theoretical methods and algebraically by using representation varieties. If the orientable double cover M~ of M is a Kähler manifold with odd complex dimension and if the Kähler form is odd under the non-trivial deck transformation τ on M~, Hitchin’s moduli space of the pull-back bundle has a hyper-Kähler structure and admits an involution induced by τ. The fixed-point set is symplectic or Lagrangian with respect to various symplectic structures on the moduli space. We compare the gauge theoretical constructions with the algebraic approach using representation varieties.
U2 - 10.4310/CAG.2018.v26.n4.a6
DO - 10.4310/CAG.2018.v26.n4.a6
M3 - Article
VL - 26
SP - 857
EP - 886
JO - Communications in Analysis and Geometry
JF - Communications in Analysis and Geometry
SN - 1019-8385
IS - 4
ER -