BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Eleonore Faber (University of Leeds) DTSTART:20200820T203000Z DTEND:20200820T220000Z DTSTAMP:20260423T053015Z UID:FOTR/15 DESCRIPTION:Title: Gr assmannian categories of infinite rank and countable Cohen-Macaulay type\nby Eleonore Faber (University of Leeds) as part of Fellowship of the R ing\n\n\nAbstract\nThis talk is about a categorification of the coordinate rings of Grassmannians of infinite rank in terms of graded maximal Cohen- Macaulay modules over a hypersurface singularity. This gives an infinite r ank analogue of the Grassmannian cluster categories introduced by Jensen\, King\, and Su. In a special case\, when the hypersurface singularity is a curve of countable Cohen-Macaulay type\, our category has a combinatorial model by an ``infinity-gon'' and we can determine triangulations of this infinity-gon.\n\nI will first give an introduction to Grassmannian cluster algebras and categories\, and then explain our limit constructions. This is joint work with Jenny August\, Man-Wai Cheung\, Sira Gratz\, and Sibyll e Schroll.\n LOCATION:https://researchseminars.org/talk/FOTR/15/ END:VEVENT END:VCALENDAR