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SUMMARY:Patricia Klein (University of Minnesota)
DTSTART:20220407T223000Z
DTEND:20220407T233000Z
DTSTAMP:20260422T053651Z
UID:SFUQNTAG/65
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/SFUQNTAG/65/
 ">Bumpless pipe dreams encode Gröbner geometry of Schubert polynomials</a
 >\nby Patricia Klein (University of Minnesota) as part of SFU NT-AG semina
 r\n\n\nAbstract\nKnutson and Miller established a connection between the a
 nti-diagonal Gröbner degenerations of matrix Schubert varieties and the p
 re-existing combinatorics of pipe dreams. They used this correspondence to
  give a geometrically-natural explanation for the appearance of the combin
 atorially-defined Schubert polynomials as representatives of Schubert clas
 ses. In this talk\, we will describe a similar connection between diagonal
  degenerations of matrix Schubert varieties and bumpless pipe dreams\, new
 er combinatorial objects introduced by Lam\, Lee\, and Shimozono. This con
 nection was conjectured by Hamaker\, Pechenik\, and Weigandt. This talk is
  based on joint work with Anna Weigandt.\n
LOCATION:https://researchseminars.org/talk/SFUQNTAG/65/
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