BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20250919T011505EDT-9201L0sckg@132.216.98.100 DTSTAMP:20250919T051505Z DESCRIPTION:Title: A spine construction for interacting populations\n\nAbst ract: We are interested in populations where individual transition rates ( deaths\, births\, movements\, mutations...) are dependent on population de nsities. We are motivated in particular by increasing mortality or decreas ing natality due to competition or regulation. The objective is to describ e the ancestral lineage of a sample at a given time\, using a progressive Markovian construction. We will focus on unstructured population (no trait or space) and we will give an example of application and describe a phase transition in a simple fragmentation growth model with competition. Final ly\, from the remaining time\, we discuss another application or the exten sion of the construction to structured populations.\n\nLocation: \n\n(Remo te) https://mcgill.zoom.us/j/86314328515?pwd=WnBuci9qNVNST3l1OTZUaVNTRlQ0U T09\n DTSTART:20220217T190000Z DTEND:20220217T190000Z LOCATION:Room 708\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue Sherbrooke Ouest SUMMARY:Vincent Bansaye from École Polytechnique (l’X)\, URL:/mathstat/channels/event/vincent-bansaye-ecole-pol ytechnique-lx-337577 END:VEVENT END:VCALENDAR