%0 Journal Article %T Symplectic fibrations and the abelian vortex equations %A T. Perutz %J Mathematics %D 2006 %I arXiv %X The nth symmetric product of a Riemann surface carries a natural family of Kaehler forms, arising from its interpretation as a moduli space of abelian vortices. We give a new proof of a formula of Manton-Nasir for the cohomology classes of these forms. Further, we show how these ideas generalise to families of Riemann surfaces. These results help to clarify a conjecture of D. Salamon on the relationship between Seiberg-Witten theory on 3-manifolds fibred over the circle and symplectic Floer homology. %U http://arxiv.org/abs/math/0606063v2