Large deviations for Brownian motion on the Sierpinski gasket
Large deviations for Brownian motion on the Sierpinski gasket
复制标题
谢尔宾斯基垫片上的布朗运动偏差较大
DOI:
10.1016/s0304-4149(99)00075-7
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发表时间:
2000
影响因子:
1.4
通讯作者:
T. Kumagai
中科院分区:
文献类型:
--
作者:
G. B. Arous;T. Kumagai
We study large deviations for Brownian motion on the Sierpinski gasket in the short time limit. Because of the subtle oscillation of hitting times of the process, no large deviation principle can hold. In fact, our result shows that there is an infinity of different large deviation principles for different subsequences, with different (good) rate functions. Thus, instead of taking the time scaling ε→0, we prove that the large deviations hold for εnz≡( 2 5 )nz as n→∞ using one parameter family of rate functions Iz(z∈[ 2 5 ,1)) . As a corollary, we obtain Strassen-type laws of the iterated logarithm.