BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Lukas Rollier (Katholieke Universiteit Leuven\, Belgium) DTSTART:20240610T140000Z DTEND:20240610T150000Z DTSTAMP:20260422T180234Z UID:QGS/121 DESCRIPTION:Title: Qu antum automorphism groups of discrete structures\nby Lukas Rollier (Ka tholieke Universiteit Leuven\, Belgium) as part of Quantum Groups Seminar [QGS]\n\n\nAbstract\nGiven any mathematical structure\, it is a natural qu estion to ask which quantum symmetries it admits. One can in general not h ope to find a quantum automorphism group for any structure in the framewor k of Kustermans-Vaes\, as a necessary condition for its existence is local compactness of the classical automorphism group. In recent work\, a wide range of discrete structures\, those which are connected and locally finit e in a suitable sense\, were shown to admit an algebraic quantum automorph ism group. The main tool for their construction is a generalization of the Tannaka-Krein-Woronowicz reconstruction theorem. In particular\, this all ows to construct quantum automorphism groups of connected locally finite q uantum graphs\, such as Wasilewski's quantum Cayley graphs\, generalizing joint results with Stefaan Vaes.\n LOCATION:https://researchseminars.org/talk/QGS/121/ END:VEVENT END:VCALENDAR