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VERSION:2.0
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CALSCALE:GREGORIAN
X-WR-CALNAME:MIT Lie Groups Seminar
X-WR-TIMEZONE:Eastern Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20260719T151310Z
UID:tag:localist.com\,2008:EventInstance_33291699614403
DTSTART:20200506T203000Z
DTEND:20200506T213000Z
DESCRIPTION:Featured Speaker :  Clifton Cunningham (University of Calgary)\
 n\nTitle :  Authur packets for $G_2$ and perverse sheaves on cubics\n\nAbs
 tract :  \n\nThis talk demonstrates a non-invasive procedure that calculat
 es Arthur pack- ets\, their associated stable distributions and Langlands-
 Shelstad transfers\, without direct use of endoscopy\, using certain unipo
 tent representations of the split p-adic exceptional group G2 as examples.
  In the case at hand\, this procedure relies on a study of the category of
  GL(2)-equivariant perverse sheaves on the moduli space of homogeneous cub
 ics in two variables\, which is perhaps of independent interest. Specifica
 lly\, we find the Fourier transform and the microlocalization of the simpl
 e objects in this category\, and convert that into information about the A
 ubert in- volution and stable distributions attached to Arthur packets. Th
 is is joint work with Andrew Fiori and Qing Zhang\, based on earlier joint
  work with Andrew Fiori\, Ahmed Moussaoui\, James Mracek and Bin Xu\, whic
 h is based on earlier work by David Vogan\, sadly\, not joint.
LOCATION:
SUMMARY:MIT Lie Groups Seminar
URL;VALUE=URI:https://calendar.mit.edu/event/mit_lie_groups_seminar_2020050
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CATEGORIES:Conferences/Seminars/Lectures
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