On Covering paths with 3 Dimensional Random Walk
On Covering paths with 3 Dimensional Random Walk
复制标题
用 3 维随机游走覆盖路径
DOI:
--
复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Y. Zhang
中科院分区:
文献类型:
--
作者:
Eviatar B. Procaccia;Y. Zhang
In this paper we find an upper bound for the probability that a $3$ dimensional simple random walk covers each point in a nearest neighbor path connecting 0 and the boundary of an $L_1$ ball of radius $N$. For $dge 4$, it has been shown in [5] that such probability decays exponentially with respect to $N$. For $d=3$, however, the same technique does not apply, and in this paper we obtain a slightly weaker upper bound: $forall varepsilon>0,exists c_varepsilon>0,$ $$Pleft({
m Trace}(mathcal{P})subseteq {
m Trace}ig({X_n}_{n=0}^inftyig)
ight)le expleft(-c_varepsilon Nlog^{-(1+varepsilon)}(N)
ight).$$