A pedestrian introduction to the geometry of 3d twisted indices
Please note the unusual time.
Abstract
3d N=4 gauge theories can be studied on a circle times a closed Riemann surface. Their partition functions on this geometry, known as twisted indices, were computed some time ago using supersymmetric localisation on the Coulomb branch. An alternative perspective is to consider the theory as a supersymmetric quantum mechanics on S^1. In this talk I will review this point of view, which unveils interesting connection to topics in geometry such as wall-crossing and symplectic duality of quasi-maps.
We are delighted to announce that Massimiliano Gubinelli has been appointed the new Wallis Professor of Mathematics in Oxford.
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