BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/Vienna
BEGIN:DAYLIGHT
DTSTART:20220327T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:CEST
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20211031T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:CET
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260405T153419Z
UID:1642705200@ist.ac.at
DTSTART:20220120T200000
DTEND:20220120T220000
DESCRIPTION:Speaker: David D Ben-Zvi\nhosted by Tamas Hausel\nAbstract: I w
 ill present joint work with Yiannis Sakellaridis and Akshay Venkatesh\, in
  which we apply a perspective from topological field theory to the relativ
 e Langlands program. The main geometric objects are hyperspherical varieti
 es for a reductive group\, a nonabelian counterpart of hypertoric varietie
 s which include the cotangent bundles of spherical varieties. To a hypersp
 herical variety one can assign two quantization problems\, automorphic and
  spectral\, both resulting in structures borrowed from QFT. The automorphi
 c quantization (or A-side) organizes objects such as periods\, Plancherel 
 measure\, theta series and relative trace formula\, while the spectral qua
 ntization (or B-side) organizes L-functions and Langlands parameters. Our 
 conjectures organize the relative Langlands program as a duality operation
  on hyperspherical varieties\, which exchanges automorphic and spectral qu
 antizations (and may be seen as Langlands duality for boundary conditions 
 in 4d TFT\, a refined form of symplectic duality / 3d mirror symmetry).
LOCATION:https://mathseminars.org/seminar/AGNTISTA\, ISTA
ORGANIZER:birgit.oosthuizen-noczil@ist.ac.at
SUMMARY:David D Ben-Zvi: Quantization and Duality for Hyperspherical Variet
 ies
URL:https://talks-calendar.ista.ac.at/events/3323
END:VEVENT
END:VCALENDAR