BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Panagiotis Gianniotis (The University of Athens) DTSTART:20250522T133000Z DTEND:20250522T143000Z DTSTAMP:20260423T004513Z UID:IGTP/2 DESCRIPTION:Title: Spl itting maps in Type I Ricci flows\nby Panagiotis Gianniotis (The Unive rsity of Athens) as part of IUT seminar in Geometry\, Topology and PDE (IG TP)\n\n\nAbstract\nHarmonic almost splitting maps are an indispensable too l in the\nstudy of the singularity structure of non-collapsed Ricci limit spaces. In\nfact\, by recent work of Cheeger-Jiang-Naber the singular stra tification is\nrectifiable\, and almost splitting maps are used to constru ct bi-Lipschitz\ncharts of the singular strata. For this\, it is crucial t o understand how a\nsplitting map may degenerate at small scales\, and whe n it doesn’t.\n\nIn this talk we will discuss similar issues for a parab olic analogue of\nalmost splitting maps\, in the context of the Ricci Flow \, and present some\nnew results regarding the existence and small scale b ehavior of almost\nsplitting maps in a Ricci flow with Type I curvature bo unds. We will also\ndiscuss how these results relate to a conjecture of Pe relman on the\nboundedness of the diameter of a 3d Ricci flow developing a finite time\nsingularity\, as we approach the singular time.\n\nlink: htt ps://meet.google.com/wha-yopd-trc\n LOCATION:https://researchseminars.org/talk/IGTP/2/ END:VEVENT END:VCALENDAR