Hausdorff Dimension of Cut Points for Brownian Motion
Hausdorff Dimension of Cut Points for Brownian Motion
复制标题
布朗运动割点的豪斯多夫维数
DOI:
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发表时间:
1996
期刊:
影响因子:
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通讯作者:
G. Lawler
中科院分区:
文献类型:
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作者:
G. Lawler
Let $B$ be a Brownian motion in $R^d$, $d=2,3$. A time $tin [0,1]$ is called a cut time for $B[0,1]$ if $B[0,t) cap B(t,1] = emptyset$. We show that the Hausdorff dimension of the set of cut times equals $1 - zeta$, where $zeta = zeta_d$ is the intersection exponent. The theorem, combined with known estimates on $zeta_3$, shows that the percolation dimension of Brownian motion (the minimal Hausdorff dimension of a subpath of a Brownian path) is strictly greater than one in $R^3$.