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UID:20250813T180102EDT-4465tdpNH1@132.216.98.100
DTSTAMP:20250813T220102Z
DESCRIPTION:Braid group symmetries of Grassmannian cluster algebras.\n\nWe 
 define an action of the $k$-strand braid group on the set of cluster varia
 bles for the Grassmannian Gr$(k\,n)$\, whenever $k$ divides $n$. The actio
 n sends clusters to clusters\, preserving the underlying quivers\, definin
 g a homomorphism from the braid group to the cluster modular group for Gr$
 (k\,n)$. Then we apply our results to the Grassmannian Gr$(3\,9)$. We prov
 e the $n=9$ case of a conjecture of Fomin-Pylyavskyy describing the cluste
 r combinatorics for Gr$(3\,n)$\, in terms of Kuperberg's basis of non-elli
 ptic webs.\n
DTSTART:20170317T173000Z
DTEND:20170317T183000Z
LOCATION:PK-4323\, CA\, PHI Centre & 51³Ô¹ÏÍø\, CA
SUMMARY:Chris Fraser\, Indiana University - Purdue University Indianapolis
URL:/channels/event/chris-fraser-indiana-university-pu
 rdue-university-indianapolis-266915
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