BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20251111T230022EST-7196wtSc06@132.216.98.100 DTSTAMP:20251112T040022Z DESCRIPTION:Title: Perverse cohérent sheaves and quantum loop group\n\nAbst ract: The category of equivariant perverse sheaves on the affine Grassmann ian has a coherent counterpart\, called the coherent Satake category. Caut is and Williams proved for GL and conjectured for other types that this ca tegory has a cluster structure. I will speak about constructing certain ca tegorical mutations in all simply-laced types. Our approach is based on re lating the coherent Satake category with the category of finite-dimensiona l modules over the quantum affine group. The bridge between these two cate gories is provided by the notion of Feigin-Loktev fusion product for modul es over the current algebra. In particular\, it helps to construct cluster short exact sequences of perverse coherent sheaves using the existence of exact sequences of modules over the quantum affine group.\n\nLocation: UQ AM PK-5675\n DTSTART:20251112T190000Z DTEND:20251112T190000Z SUMMARY:Ilya Dumanski (MIT) URL:/smerg/channels/event/ilya-dumanski-mit-368845 END:VEVENT END:VCALENDAR