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SUMMARY:Gábor Tardos (Budapest)
DTSTART:20201023T130000Z
DTEND:20201023T140000Z
DTSTAMP:20260404T170709Z
UID:WCS/7
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/WCS/7
 /">Convergence and limits of finite trees</a>\nby Gábor Tardos (Budapest)
  as part of Warwick Combinatorics Seminar\n\n\nAbstract\nSeeing the succes
 s of limit theory of dense finite graphs with graphons as their limit obje
 cts we developed a similar (?) theory for finite trees. In order for the s
 ampling limit to make sense we need to make the trees "dense" - we do this
  by considering them as metric spaces with the normalized graph distance. 
 Using ultaproducts is a simple and elegant way to find unique limit object
 s (we call them dendrons) and also to highlight similarities and major dif
 ferences from the theory of dense graph limits. For the underlying quantit
 ative approximation results\, one needs more "down to earth" techniques to
  be developed.\nThis is joint work with Gábor Elek.\n
LOCATION:https://stable.researchseminars.org/talk/WCS/7/
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