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VERSION:2.0
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CALSCALE:GREGORIAN
X-WR-CALNAME:Richard P. Stanley Seminar in Combinatorics
X-WR-TIMEZONE:Eastern Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20260617T201442Z
UID:tag:localist.com\,2008:EventInstance_49312580657568
DTSTART:20250409T201500Z
DTEND:20250409T211500Z
DESCRIPTION:Speaker: Linus Setiabrata (U. Chicago)\n\nTitle: Double orthodo
 ntia formulas and Lascoux positivity\n\nAbstract:  \n\nMotivated by our se
 arch for a representation theoretic avatar for double Grothendieck polynom
 ials\, we extend Magyar’s orthodontia formula for Schubert polynomials. 
 Our formula gives a curious positivity result: Writing $\\mathfrak S_w(\\m
 athbf x\, \\mathbf y)$ for a vexillary double Schubert polynomial\, the po
 lynomial $x_1^n \\dots x_n^n \\mathfrak S_w(x_n^{-1}\, \\dots\, x_1^{-1}\;
  1\, \\dots\, 1)$ is a graded nonnegative sum of Lascoux polynomials. Join
 t work with Avery St. Dizier.
GEO:42.358262;-71.090045
LOCATION:Building 2\, Room 135
SUMMARY:Richard P. Stanley Seminar in Combinatorics
URL;VALUE=URI:https://calendar.mit.edu/event/richard-p-stanley-seminar-in-c
 ombinatorics-8891
CATEGORIES:Conferences/Seminars/Lectures
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