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SUMMARY:Richard Thomas (Imperial College London)
DTSTART:20211109T160000Z
DTEND:20211109T170000Z
DTSTAMP:20260423T021651Z
UID:DerSem/31
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/DerSem/31/">
 Higher rank DT theory from curve counts</a>\nby Richard Thomas (Imperial C
 ollege London) as part of Derived seminar\n\n\nAbstract\nFix a Calabi-Yau 
 3-fold X. Its DT invariants count stable bundles and sheaves on X. The gen
 eralised DT invariants of Joyce-Song count semistable bundles and sheaves 
 on X. I will describe work with Soheyla Feyzbakhsh using the weak stabilit
 y conditions of Bayer-Macrì -Toda to show these generalised DT invariants
  in any rank r can be written in terms of rank 1 invariants. By the MNOP c
 onjecture the latter are determined by the GW invariants of X.\n
LOCATION:https://researchseminars.org/talk/DerSem/31/
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