BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Ed Segal (University College London)
DTSTART:20210518T150000Z
DTEND:20210518T160000Z
DTSTAMP:20260423T021650Z
UID:DerSem/25
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/DerSem/25/">
 Mirrors to surfaces and twisted derived categories</a>\nby Ed Segal (Unive
 rsity College London) as part of Derived seminar\n\n\nAbstract\nPunctured 
 surfaces are the simplest class of symplectic manifolds and there are many
  constructions of homological mirrors for them\, i.e. constructions in alg
 ebraic geometry of a category equivalent to the Fukaya category of the sur
 face. To make the Fukaya category Z-graded\, not just Z/2-graded\, you nee
 d to choose a line-field on the surface. I'll explain what this choice cor
 responds to in (some of) the mirror constructions\, it leads to a kind of 
 twisted derived category which doesn't seem to have been widely studied.\n
LOCATION:https://researchseminars.org/talk/DerSem/25/
END:VEVENT
END:VCALENDAR