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SUMMARY:Andy Neitzke (Yale University)
DTSTART:20210331T200000Z
DTEND:20210331T210000Z
DTSTAMP:20260414T173652Z
UID:BUGeom/20
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/BUGeom/20/">
 An update on hyperkahler metrics on moduli of Higgs bundles</a>\nby Andy N
 eitzke (Yale University) as part of Boston University Geometry/Physics Sem
 inar\n\nLecture held in Zoom meeting ID: 974 5641 9902.\n\nAbstract\nIn jo
 int work with Davide Gaiotto and Greg Moore\, we gave a\nconjectural const
 ruction of the hyperkahler metric on moduli spaces of Higgs\nbundles. The 
 key new ingredients in this construction are counts of BPS states\n(Donald
 son-Thomas-type invariants).\n\nThrough the work of various authors\, incl
 uding me\, Dumas\, Fredrickson\,\nMazzeo\, Swoboda\, Weiss\, Witt\, there 
 is now some evidence that this\nconjectural picture is correct. On the one
  hand\, some of the asymptotic\npredictions which follow from the conjectu
 re have been proven\; on the other\nhand\, there is numerical evidence tha
 t the conjecture is correct even far\naway from the asymptotic limit. I wi
 ll review these developments.\n
LOCATION:https://researchseminars.org/talk/BUGeom/20/
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