Diffusivity of a random walk on random walks

被引:4
作者
Boissard, Emmanuel [1 ]
Cohen, Serge [1 ]
Espinasse, Thibault [1 ]
Norris, James [2 ]
机构
[1] Univ Toulouse 3, Univ Toulouse, CNRS UMR 5219, Inst Math Toulouse, F-31062 Toulouse, France
[2] Univ Cambridge, Stat Lab, Ctr Math Sci, Cambridge CB3 0WB, England
基金
英国工程与自然科学研究理事会;
关键词
random walk; graph; central limit theorem;
D O I
10.1002/rsa.20541
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
We consider a random walk (Zn-(1),...,Zn(K+1)) epsilon Z(K+1) with the constraint that each coordinate of the walk is at distance one from the following one. In this paper, we show that this random walk is slowed down by a variance factor sigma(2)(K)=2K+2 with respect to the case of the classical simple random walk without constraint. (c) 2014 Wiley Periodicals, Inc. Random Struct. Alg., 47, 267-283, 2015
引用
收藏
页码:267 / 283
页数:17
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