Joint Harvard-CUHK-YMSC Differential Geometry Seminar: Donaldson-Thomas invariants and hyperkahler manifolds: the example of theories of class S[A1]


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February 23, 2022 4:00 am - 5:00 am
via Zoom Video Conferencing

Professor Tom Bridgeland - University of Sheffield

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.

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Meeting ID: 944 1073 3353
Passcode: 20220223


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