BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Minghao Wang (Boston University) DTSTART:20240710T140000Z DTEND:20240710T150000Z DTSTAMP:20260423T021318Z UID:TQFT/118 DESCRIPTION:Title: F eynman graph integrals from topological-holomorphic theories and their app lications\nby Minghao Wang (Boston University) as part of Topological Quantum Field Theory Club (IST\, Lisbon)\n\n\nAbstract\nFeynman graph inte grals of topological field theories have been proved to be ultraviolet fin ite by Axelrod and Singer\, and Kontsevich independently. This result lead s to many applications including universal finite type knot invariants and the formality of $E_n$ operads. In this talk\, I will extend the finitene ss results (and some anomaly cancellation results) to Feynman graph integr als of topological-holomorphic theories on flat spaces. The main technique for the proof is compactification of the moduli space of metric graphs. A s a result\, we can construct many factorization algebras from quantum top ological-holomorphic theories. In the special case of 4d Chern–Simons th eory\, the factorization algebra structure encodes the Yang–Baxter equat ion. If time permits\, I will sketch how to extend these results to Feynma n graph integrals on Kähler manifolds. Part of this work is joint with Br ian Williams.\n\nReference: https://arxiv.org/abs/2401.08113\n\nPlease not e the unusual hour!\n LOCATION:https://researchseminars.org/talk/TQFT/118/ END:VEVENT END:VCALENDAR