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UID:8186@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20150123T110000
DTEND;TZID=Europe/Paris:20150123T120000
DTSTAMP:20241120T210100Z
URL:https://www.i2m.univ-amu.fr/evenements/excited-random-walk-with-period
 ic-cookies-tal-orenshtein/
SUMMARY:Tal Orenshtein (The Weizmann Institute of Science\, Rehovot\, Israe
 l): Excited random walk with periodic cookies - Tal Orenshtein
DESCRIPTION:Tal Orenshtein: \nWe will discuss excited random walk on the in
 tegers in elliptic and identically piled environments with periodic cookie
 s.\nThis is a discrete time process on the integers defined by parameters 
 $p_1\,...\,p_M$ in $(0\,1)$ for some positive integer $M$\, where in the $
 i$-th visit to an integer $z$ the walker moves to $z+1$ with probability $
 p_{i \\mod M}$\, and to $z−1$ with probability $1-p_{i \\mod M}$. The ma
 in result will be discussed is an explicit formula\, in terms of $p_1\,…
 \,p_M$\, for determining recurrence\, transience to the left\, or transien
 ce to the right. As an application one can easily construct transient walk
 s even when the average drift per period is zero.\nThis is a joint work wi
 th Gady Kozma and Igor Shinkar.\n\n&nbsp\;
ATTACH;FMTTYPE=image/jpeg:https://www.i2m.univ-amu.fr/wp-content/uploads/2
 020/01/Tal_Orenshtein.jpg
CATEGORIES:Séminaire,Probabilités
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DTSTART:20141026T020000
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