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SUMMARY:Multidegrees\, polymatroids\, and Schubert polynomials
DTSTART:20231130T093000Z
DTEND:20231130T113000Z
DTSTAMP:20260424T110300Z
UID:indico-event-10863@indico.math.cnrs.fr
DESCRIPTION:Speakers: Yairon Cid Ruiz (KU Leuven)\n\nThe concept of multid
 egrees provides the right generalization of the degree of a projective var
 iety to a multiprojective setting. The study of multidegrees goes back to 
 seminal work by van der Waerden in 1929. We will present a complete charac
 terization of the positivity of multidegrees. This characterization will s
 how that the positive multidegrees of a multiprojective variety form a dis
 crete polymatroid\, which is a very special type of lattice polytope. Fina
 lly\, we will apply our methods on multidegrees to settle a conjecture of 
 Monical\, Tokcan\, and Yong for (double) Schubert polynomials.\n\nhttps://
 indico.math.cnrs.fr/event/10863/
URL:https://indico.math.cnrs.fr/event/10863/
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