BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Chris Raymond (University of Hamburg) DTSTART:20260326T230000Z DTEND:20260327T001500Z DTSTAMP:20260423T024451Z UID:PIMS_GAP/21 DESCRIPTION:Title: Inverting Hamiltonian Reduction - A Rep Theory Perspective\nby Chris Raymond (University of Hamburg) as part of PIMS Geometry / Algebra / Phys ics (GAP) Seminar\n\nLecture held in PHYSIC 130.\n\nAbstract\nQuantum Hami ltonian reduction is an algebraic procedure that produces new vertex algeb ras from known ones\, with the best understood examples being the W-algebr as that arise from affine vertex algebras. Recent work has focused on mora lly inverting this construction\, which has important implications for rep resentation theory. Moreover\, since affine vertex algebras are intimately tied to their underlying Lie algebras\, this inverse construction also pr ovides new tools for constructing and studying weight modules over both fi nite and affine Lie algebras\, which are of broader interest in algebra an d mathematical physics. In this talk\, I'll give an introduction to the id eas involved and illustrate the construction by showing how it naturally p roduces simple weight modules with infinite-dimensional weight spaces ever ywhere.\n\nHybrid delivery (in person on University of Saskatchewan campus and via Zoom).\n LOCATION:https://researchseminars.org/talk/PIMS_GAP/21/ END:VEVENT END:VCALENDAR