BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/Vienna
BEGIN:DAYLIGHT
DTSTART:20190331T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:CEST
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20191027T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:CET
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260404T110020Z
UID:5ba209fb35c7c232381396@ist.ac.at
DTSTART:20190418T133000
DTEND:20190418T153000
DESCRIPTION:Speaker: Eric Vasserot\nhosted by Tamas Hausel\nAbstract: I we'
 ll review some recent joint work with M. Kapranov where we define a cohomo
 logical Hall algebra associated with any smooth algebraic surface.I will a
 lso explain how to prove a PBW theorem for these algebras\, using factoriz
 ation algebra techniques.
LOCATION:Big Seminar room Ground floor / Office Bldg West (I21.EG.101)\, IS
 TA
ORGANIZER:cpetz@ist.ac.at
SUMMARY:Eric Vasserot: Cohomological algebras and factorization algebras
URL:https://talks-calendar.ista.ac.at/events/1877
END:VEVENT
END:VCALENDAR
