BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Marco Barberis (Warwick) DTSTART:20220505T140500Z DTEND:20220505T145500Z DTSTAMP:20260423T003241Z UID:GaTO/61 DESCRIPTION:Title: Cu rve graphs: exhaustions by rigid sets and the co-Hopfian property\nby Marco Barberis (Warwick) as part of Geometry and topology online\n\n\nAbst ract\nSince Ivanov's celebrated first result\, many rigidity theorems for various variants of the curve graph of surfaces have been proven. Among th ese\, there is a cluster of results regarding the existence of exhaustion via finite subgraphs which are rigid (that is such that every embedding is induced by an automorphism of the whole graph). From this property\, inte resting per se\, the co-Hopfian property of the graphs immediately follows . In this talk I will present the classical results in the fields\, as wel l as some new cases\, which point toward conjecturing that most curve grap hs on finite-type surfaces should admit exhaustions by rigid sets\, in lin e with Ivanov's Metaconjecture.\n LOCATION:https://researchseminars.org/talk/GaTO/61/ END:VEVENT END:VCALENDAR