BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Henry Liu (Kavli IPMU)
DTSTART:20260429T080000Z
DTEND:20260429T093000Z
DTSTAMP:20260422T154424Z
UID:HKUST-AG/90
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/HKUST-AG/90/
 ">Wall-crossing for invariants of equivariant 3CY categories (overview)</a
 >\nby Henry Liu (Kavli IPMU) as part of Algebra and Geometry Seminar @ HKU
 ST\n\nLecture held in Room 5562 (Lift 27/28).\n\nAbstract\nI will give an 
 overview of: what is wall-crossing\; geometric techniques for producing wa
 ll-crossing formulas\; recent advances in such techniques for enumerative 
 invariants\, particularly those of ``3-Calabi-Yau type''\, in various equi
 variant cohomology theories like K-theory or elliptic cohomology. This inc
 ludes joint work with N. Kuhn and F. Thimm which can be thought of as a re
 finement and generalization of results of Joyce-Song and Kontsevich-Soibel
 man. Applications include the Donaldson-Thomas/Pandharipande-Thomas vertex
  correspondence (related to the topological vertex) and the study of refin
 ed Vafa-Witten invariants.\n\nLecture series: Wall-crossing for invariants
  of equivariant 3CY categories\n
LOCATION:https://researchseminars.org/talk/HKUST-AG/90/
END:VEVENT
END:VCALENDAR