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METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20201204T160906Z
DTSTART:20201209T150000Z
DTEND:20201209T160000Z
SUMMARY:Eleanor Archer - Random walks on decorated Galton-Watson trees
UID:{http://www.columbasystems.com/customers/uom/gpp/eventid/}j1cq-kiagqp
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DESCRIPTION:Eleanor Archer (Tel Aviv) will speak in the Probability semin
ar. \n\nhttps://zoom.us/j/91491645346\n\n\nAbstract:\nRandom trees are t
he building blocks for a range of probabilistic structures\, including p
ercolation clusters on the lattice and a range of statistical physics mo
dels on random planar maps. In this talk we consider a random walk on a
critical "decorated" Galton-Watson tree\, by which we mean that we first
sample a critical Galton-Watson tree T\, replace each vertex of degree
n with an independent copy of a graph G(n)\, and then glue these inserte
d graphs along the tree structure of T. We will determine the random wal
k exponents for this decorated tree model in terms of the exponents for
the underlying tree and the exponents for the inserted graphs. We will s
ee that the model undergoes several phase transitions depending on how t
hese exponents balance out.
STATUS:TENTATIVE
TRANSP:TRANSPARENT
CLASS:PUBLIC
LOCATION:https://zoom.us/j/91491645346
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