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Donaldson-Thomas invariants and hyperkahler manifolds: the example of theories of class S[A1]
February 23, 2022 @ 4:00 pm - 5:00 pm
![](https://cmsa.fas.harvard.edu/media/20220223_Tom-Bridgeland_poster.png)
Abstract: I will report on a project which aims to encode the DT invariants of a CY3 triangulated category in a geometric structure on its stability space. I will focus on a class of categories whose stability spaces were studied in previous joint work with Ivan Smith, and which correspond in physics to theories of class S[A1]. I will describe the resulting geometric structures using a kind of complexified Hitchin system parameterising bundles on curves equipped with pencils of flat connections.