Self-intersection local time: Critical exponent, large deviations, and laws of the iterated logarithm

Self-intersection local time: Critical exponent, large deviations, and laws of the iterated logarithm
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DOI:
10.1214/009117904000000504
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发表时间:
2004-10
影响因子:
2.3
通讯作者:
R. Bass;Xia Chen
R. Bass;Xia Chen
中科院分区:
数学1区
文献类型:
--
作者:
R. Bass;Xia Chen

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如果 β t 是平面布朗运动的重正化自交局部时间,我们可以根据 Gagliardo-Nirenberg 不等式的最佳常数来表征 Ee γβ 1 何时是有限或无限的。我们证明了 β 1 和 -β 1 的大偏差估计。当 t → ∞ 时,我们建立了 β t 的迭代对数 lim super 和 lim inf 定律。
If β t is renormalized self-intersection local time for planar Brownian motion, we characterize when Ee γβ 1 is finite or infinite in terms of the best constant of a Gagliardo-Nirenberg inequality. We prove large deviation estimates for β 1 and -β 1 . We establish lim sup and lim inf laws of the iterated logarithm for β t as t → ∞.