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UID:20251217T025956EST-8340ddki9m@132.216.98.100
DTSTAMP:20251217T075956Z
DESCRIPTION:Title: The Chute Moves Lattice.\n\nAbstract:  For each permutat
 ion w\, we consider the set RP(w) of reduced pipe dreams for w\, partially
  ordered so that cover relations correspond to (generalized) chute moves. 
 Settling a conjecture of Rubey from 2012\, we prove that RP(w) is a lattic
 e. To establish this result\, introduce another poset consisting of object
 s called Lehmer tableaux with relation given by entrywise comparison. We p
 rovide a global description of the partial order on RP(w) by showing that 
 these two posets are isomorphic. In addition\, we prove that RP(w) is a se
 midistributive polygonal lattice whose polygons are all diamonds or pentag
 ons.\n\nRoom PK-4323 of UQAM’s Président-Kennedy Building.\n
DTSTART:20251219T160000Z
DTEND:20251219T170000Z
SUMMARY:Ilani Axelrod-Freed (MIT)
URL:/mathstat/channels/event/ilani-axelrod-freed-mit-3
 69820
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