BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Peter Crooks (Northeastern University)
DTSTART:20200429T200000Z
DTEND:20200429T210000Z
DTSTAMP:20260423T035927Z
UID:AG-Davis/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG-Davis/2/"
 >Poisson slices and Hessenberg varieties</a>\nby Peter Crooks (Northeaster
 n University) as part of UC Davis algebraic geometry seminar\n\n\nAbstract
 \nHessenberg varieties constitute a rich and well-studied class of closed 
 subvarieties in the flag variety. Prominent examples include Grothendieck-
 Springer fibres\, the Peterson variety\, and the projective toric variety 
 associated to the Weyl chambers. These last two examples belong to the fam
 ily of standard Hessenberg varieties\, whose total space is known to be a 
 log symplectic variety. I will exhibit this total space as a Poisson slice
  in the log cotangent bundle of the wonderful compactification\, thereby b
 uilding on Balibanu's recent results. This will yield a canonical closed e
 mbedding of each standard Hessenberg variety into the wonderful compactifi
 cation.\n\nThis represents joint work with Markus Röser.\n
LOCATION:https://researchseminars.org/talk/AG-Davis/2/
END:VEVENT
END:VCALENDAR