BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Michael Wemyss (University of Glasgow\, UK) DTSTART:20250430T120000Z DTEND:20250430T130000Z DTSTAMP:20260423T022930Z UID:LAGOON/101 DESCRIPTION:Title: The classification of 3-fold flops via Jacobi algebras\nby Michael We myss (University of Glasgow\, UK) as part of Longitudinal Algebra and Geom etry Open ONline Seminar (LAGOON)\n\n\nAbstract\nThe talk will give an ove rview of the analytic classification of smooth\, simple\, 3-fold flops. T here are three main aspects: (1) reducing the problem to the classificatio n of certain noncommutative finite dimensional algebras\, (2) a full under standing of those algebras\, then lastly (3) building the associated geome try for each algebra in that class. There are various bonus corollaries. The talk will be algebraic\, and so will focus mostly on (1) and (2)\, wh ere new techniques in A∞ algebras and in noncommutative standard bases w ill be explained. Perhaps the main point is that a new invariant of Jacob i algebras on the two-loop quiver called the "algebraic length" will be in troduced\, and I will speculate on how general this construction really is . Part (1) is joint with Joe Karmazyn and Emma Lepri\, the rest is joint with Gavin Brown.\n LOCATION:https://researchseminars.org/talk/LAGOON/101/ END:VEVENT END:VCALENDAR