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SUMMARY:Michael Brown (Auburn University)
DTSTART:20201119T200000Z
DTEND:20201119T213000Z
DTSTAMP:20260423T021430Z
UID:FOTR/31
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/FOTR/31/">A 
 toric BGG correspondence</a>\nby Michael Brown (Auburn University) as part
  of Fellowship of the Ring\n\n\nAbstract\nThis is ongoing joint work with 
 David Eisenbud\, Daniel Erman\, and Frank-Olaf Schreyer. The Bernstein-Gel
 'fand-Gel'fand (BGG) correspondence is a derived equivalence between a sta
 ndard graded polynomial ring and its Koszul dual exterior algebra. One of 
 the many important applications of the BGG correspondence is an algorithm\
 , due to Eisenbud-Fløystad-Schreyer\, for computing sheaf cohomology on p
 rojective space that is\, in some cases\, the fastest available. The goal 
 of this talk is to discuss a generalization of the BGG correspondence from
  standard graded to multigraded polynomial rings and how it leads to an Ei
 senbud-Fløystad-Schreyer-type algorithm for computing sheaf cohomology ov
 er certain projective toric varieties.\n
LOCATION:https://researchseminars.org/talk/FOTR/31/
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