BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Toby Driscoll (University of Delaware) DTSTART:20231024T130000Z DTEND:20231024T140000Z DTSTAMP:20260422T201742Z UID:CAvid/109 DESCRIPTION:Title: AAA for rational interpolation on continuua\nby Toby Driscoll (Univers ity of Delaware) as part of CAvid: Complex Analysis video seminar\n\nLectu re held in N/A.\n\nAbstract\nThe AAA algorithm of Nakatsukasa\, Sète\, an d Trefethen has rapidly risen to prominence as a fast and powerful way to approximate functions in the complex plane. As originally presented\, AAA incrementally constructs an approximation based on a fixed initial discret ization\, which is not ideal in cases where a good initial distribution of nodes may be difficult to discern. By also incrementally adding nodes fro m the domain based on the latest residual\, the algorithm can be adapted t o work well automatically even when singularities are very close to or eve n on the approximation interval. This capability has been released as a Ju lia software package\, and another package is in development to use these approximations for computing conformal maps to simply- and doubly-connecte d domains.\n LOCATION:https://researchseminars.org/talk/CAvid/109/ END:VEVENT END:VCALENDAR