BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20250730T034153EDT-6124WZ2ulx@132.216.98.100 DTSTAMP:20250730T074153Z DESCRIPTION:Title: From geometric realizations of affine Hecke algebras to character formulas\n\nAbstract: I will explain an approach allowing to ext ract character formulas for irreducible \hat{g}-modules at the positive le vel from the geometry of some open subvarieties of Steinberg varieties. Th e approach uses Bezrukavnikov's 'exotic coherent' categorification of the canonical basis of the affine Hecke algebra for g. We will discuss the fir st nontrivial example and will see that it leads to explicit character for mulas for all irreducible modules in categories O for certain Vertex algeb ras. Based on joint works with Bezrukavnikov\, Kac\, and Suzuki.\n\nLocati on: UQAM PK-5675\n DTSTART:20250122T190000Z DTEND:20250122T200000Z SUMMARY:Vasily Krylov (Harvard University) URL:/mathstat/channels/event/vasily-krylov-harvard-uni versity-362749 END:VEVENT END:VCALENDAR