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A Quenched Functional Central Limit Theorem for Random Walks in Random Environments under $(T)_gamma$

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 نشر من قبل Christophe Sabot
 تاريخ النشر 2014
  مجال البحث
والبحث باللغة English
 تأليف Elodie Bouchet




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We prove a quenched central limit theorem for random walks in i.i.d. weakly elliptic random environments in the ballistic regime. Such theorems have been proved recently by Rassoul-Agha and Seppalainen in [10] and Berger and Zeitouni in [2] under the assumption of large finite moments for the regeneration time. In this paper, with the extra $(T)_{gamma}$ condition of Sznitman we reduce the moment condition to ${Bbb E}(tau^2(ln tau)^{1+m})<+infty$ for $m>1+1/gamma$, which allows the inclusion of new non-uniformly elliptic examples such as Dirichlet random environments.

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