BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Jun Su (Cambridge University) DTSTART:20210226T160000Z DTEND:20210226T170000Z DTSTAMP:20260423T024830Z UID:QMULANTS/13 DESCRIPTION:Title: Arithmetic group cohomology with generalised coefficients\nby Jun Su (Cambridge University) as part of Queen Mary University of London Algebra and Number Theory Seminar\n\n\nAbstract\nCohomology of arithmetic subgrou ps\, with algebraic representations as coefficients\, has played an import ant role in the construction of Langlands correspondence. Traditionally th e first step to access these objects is to view them as cohomology of shea ves on locally symmetric spaces and hence connect them with spaces of func tions. However\, sometimes infinite dimensional coeffients also naturallhy arise\, e.g. when you try to attach elliptic curves to weight 2 eigenform s on GL_2/an imaginary cubic field\, and the sheaf theoretic viewpoint mig ht no longer be fruitful. In this talk we'll explain a very simple alterna tive understanding of the connection between arithmetic group cohomology ( with finite dimensional coefficients) and function spaces\, and discuss it s application to infinite dimensional coefficients.\n LOCATION:https://researchseminars.org/talk/QMULANTS/13/ END:VEVENT END:VCALENDAR