BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Matteo Pagliero (University of Southern Denmark) DTSTART:20261021T190000Z DTEND:20261021T200000Z DTSTAMP:20261022T012618Z UID:NYC-NCG/229 DESCRIPTION:Title: Unital embeddings of the Jiang-Su algebra are not unique\nby Matteo Pagliero (University of Southern Denmark) as part of Noncommutative geomet ry in NYC\n\n\nAbstract\nClassifying embeddings up to approximate unitary equivalence\, together with the accompanying existence theorem\, is a corn erstone step in the modern approach to classification of C*-algebras. Part ly motivated by Gabe's result that any pair of unital embeddings of the Cu ntz algebra $\\mathcal{O}_{\\infty}$ into a unital C*-algebra are approxim ately unitarily equivalent\, Schafhauser\, Tikuisis and White asked wheth er this must also be case for unital embeddings of the Jiang-Su algebra. D espite this being true for a class of sufficiently regular targets by a th eorem of Robert\, the answer to the question is negative. In this talk\, I will present recent work where we produce a counterexample\; in particula r\, one can choose the full free product of two copies of the Jiang-Su alg ebra as target.\n LOCATION:https://researchseminars.org/talk/NYC-NCG/229/ END:VEVENT END:VCALENDAR