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arXiv 1504.03043math.PR
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有漂移和无漂移的布朗运动到球面的击中时

Hitting times to spheres of Brownian motions with and without drifts

Yuji Hamana, Hiroyuki Matsumoto

摘要:

给出了带漂移的布朗运动球的首中时密度的显式表达式。本文考虑了标准布朗运动的球的首中时和球的首中位置的联合分布,并给出了它们的拉普拉斯变换的显式表达式,它不同于文献中已知的公式,具有独立的意义。

英文摘要:

Explicit formulae for the densities of the first hitting times to the sphere of Brownian motions with drifts are given. We need to consider the joint distributions of the first hitting times to the sphere and the hitting positions of the standard Brownian motion and explicit expression for their Laplace transforms are given, which are different from the known formulae in the literature and are of independnt interest.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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