BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20250730T041531EDT-97637G1Dm1@132.216.98.100 DTSTAMP:20250730T081531Z DESCRIPTION:Title: Geometry and dynamics of the extension graph of graph pr oduct of groups\n\nAbstract: In this talk\, I will introduce the extension graph of graph product of groups and explain its geometry. This notion en ables us to study the properties of graph product by exploiting the large- scale geometry of its defining graph. In particular\, I show that the asym ptotic dimension of the extension graph exhibits the same behavior as in t he case of quasi-trees of metric spaces studied by Bestvina-Bromberg-Fujiw ara. In addition\, I present applications of the extension graph to the st udy of convergence actions\, graph wreath products\, and group von Neumann algebras when the defining graph is hyperbolic.\n\nWe will gather for tea time in the lounge after the talk. After teatime\, we will go for dinner w ith Koichi. \n\n \n DTSTART:20250129T210000Z DTEND:20250129T220000Z LOCATION:Room 920\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue Sherbrooke Ouest SUMMARY:Koichi Oyakawa (Vanderbilt University) URL:/mathstat/channels/event/koichi-oyakawa-vanderbilt -university-362929 END:VEVENT END:VCALENDAR