BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Weyl symmetry for curve counting invariants via spherical twists -
  Tim-Henrik Bülles
DTSTART:20220513T100000Z
DTEND:20220513T110000Z
UID:TALK173888@talks.cam.ac.uk
CONTACT:Dhruv Ranganathan
DESCRIPTION:The curve counting invariants of Calabi—Yau 3-folds exhibit 
 symmetries induced by the action of derived autoequivalences. I will give 
 a brief overview of the subject and explain some recent development. In jo
 int work with M. Moreira we obtain the Weyl symmetry along a ruled divisor
 \, a new rationality result and functional equation for the generating fun
 ction of stable pairs invariants. The underlying derived autoequivalence i
 nvolves spherical twists.\n
LOCATION:MR14
END:VEVENT
END:VCALENDAR