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Asymptotics of the Persistence Exponent of Integrated Fractional Brownian Motion and Fractionally Integrated Brownian Motion
Theory of Probability and Its Applications ( IF 0.5 ) Pub Date : 2022-05-05 , DOI: 10.1137/s0040585x97t990769
F. Aurzada , M. Kilian

Theory of Probability &Its Applications, Volume 67, Issue 1, Page 77-88, May 2022.
We consider the persistence probability for the integrated fractional Brownian motion and the fractionally integrated Brownian motion with parameter $H$, respectively. For the integrated fractional Brownian motion, we discuss a conjecture of Molchan and Khokhlov and determine the asymptotic behavior of the persistence exponent as $H\to 0$ and $H\to 1$, which is in accordance with the conjecture. For the fractionally integrated Brownian motion, also called the Riemann--Liouville process, we find the asymptotic behavior of the persistence exponent as $H\to 0$.


中文翻译:

积分分数布朗运动和分数积分布朗运动的持续指数的渐近

概率理论及其应用,第 67 卷,第 1 期,第 77-88 页,2022 年 5 月。
我们分别考虑积分分数布朗运动和带参数 $H$ 的分数积分布朗运动的持续概率。对于积分分数布朗运动,我们讨论了 Molchan 和 Khokhlov 的猜想,确定了持久性指数的渐近行为为 $H\to 0$ 和 $H\to 1$,这与猜想一致。对于分数积分布朗运动,也称为黎曼-刘维尔过程,我们发现持久性指数的渐近行为为$H\to 0$。
更新日期:2022-05-06
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