Hitchin moduli spaces are non-compact hyperkähler manifolds parameterising solutions of gauge-theoretic equations on a Riemann surface.  There are two distinguished complex structures for which this gauge-theoretic moduli space can be realised as a moduli space of Higgs bundles and as a moduli space of local systems respectively on the Riemann surface.  In this talk I will focus on describing ten Hitchin moduli spaces on the Riemann sphere of hyperkähler dimension one (i.e. non-compact K3 surfaces) from these two perspectives.  The moduli spaces of Higgs bundles are all given as complements of a singular fibre in a rational elliptic surface, whereas the moduli spaces of local systems are all affine cubic surfaces.

Date and Venue

Start Date
Venue
Room 1.09
End Date

Speaker

Tom Sutherland

Speaker's Institution

Universidade de Lisboa

Files

Area

Geometry and Topology

Financiamento