On the curvature of vortex moduli spaces

Details On the curvature of vortex moduli spaces On the curvature of vortex moduli spaces

2010-10-07

arxiv.org/abs/1010.1488v1

Physics

Mathematical Physics

25 pages

Scientific paper

We use algebraic topology to investigate local curvature properties of the moduli spaces of gauged vortices on a closed Riemann surface. After computing the homotopy type of the universal cover of the moduli spaces (which are symmetric powers of the surface), we prove that, for genus g>1, the holomorphic bisectional curvature of the vortex metrics cannot always be nonnegative in the multivortex case, and this property extends to all Kaehler metrics on certain symmetric powers. Our result rules out an established and natural conjecture on the geometry of the moduli spaces.

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