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research article

Limit laws of transient excited random walks on integers

Kosygina, Elena
•
Mountford, Thomas  
2011
Annales De L Institut Henri Poincare-Probabilites Et Statistiques

We consider excited random walks (ERWs) on Z with a bounded number of i.i.d. cookies per site without the non-negativity assumption on the drifts induced by the cookies. Kosygina and Zerner [15] have shown that when the total expected drift per site, delta, is larger than 1 then ERW is transient to the right and, moreover, for delta > 4 under the averaged measure it obeys the Central Limit Theorem. We show that when delta is an element of (2,4] the limiting behavior of an appropriately centered and scaled excited random walk under the averaged measure is described by a strictly stable law with parameter delta/2. Our method also extends the results obtained by Basdevant and Singh [2] for delta is an element of (1,2] under the non-negativity assumption to the setting which allows both positive and negative cookies.

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Type
research article
DOI
10.1214/10-AIHP376
Web of Science ID

WOS:000289654500012

Author(s)
Kosygina, Elena
Mountford, Thomas  
Date Issued

2011

Published in
Annales De L Institut Henri Poincare-Probabilites Et Statistiques
Volume

47

Start page

575

End page

600

Subjects

Excited random walk

•

Limit theorem

•

Stable law

•

Branching process

•

Diffusion approximation

•

Brownian-Motion

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
PRST  
Available on Infoscience
December 16, 2011
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/74250
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