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DTSTART:20070311T020000
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DTSTAMP:20260914T092752
DTSTART;TZID=America/Detroit:20261002T150000
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SUMMARY:Workshop / Seminar:Combinatorial invariance for the coefficient of q in Kazhdan-Lusztig polynomials
DESCRIPTION:I will describe joint work with Grant Barkley and Thomas Lam in which we study the Combinatorial Invariance Conjecture (CIC)\, which asserts that Kazhdan-Lusztig polynomials depend only on the combinatorics of Bruhat order. Motivated by the cluster structure on Richardson varieties\, we prove the combinatorial invariance of the coefficient of q in KL polynomials for arbitrary Coxeter groups. We also prove the Gabber-Joseph conjecture for the second-highest Ext group of a pair of Verma modules\, as well as the combinatorial invariance of the dimension of this group.
UID:149734-21907011@events.umich.edu
URL:https://events.umich.edu/event/149734
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
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