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SUMMARY:Thomas Lam (University of Michigan)
DTSTART:20210223T190000Z
DTEND:20210223T200000Z
DTSTAMP:20260423T024610Z
UID:AG-Davis/20
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AG-Davis/20/
 ">Positroids\, clusters\, and Catalan numbers</a>\nby Thomas Lam (Universi
 ty of Michigan) as part of UC Davis algebraic geometry seminar\n\n\nAbstra
 ct\nPositroid varieties are subvarieties of the Grassmannian obtained by i
 ntersecting cyclic rotations of Schubert varieties. I will talk about a re
 cent result relating the (singular) cohomology of positroid varieties and 
 to q\,t-Catalan theory. I will also explain some features of the cohomolog
 y of the more general class of cluster varieties.\n
LOCATION:https://researchseminars.org/talk/AG-Davis/20/
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