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arXiv 1111.3736math.PR
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Bessel过程的首中时--移动球上行走算法(WoMS)

Hitting time for Bessel processes - walk on moving spheres algorithm (WoMS)

Madalina Deaconu, Samuel Herrmann

摘要:

本文研究了Bessel过程某些给定边界的首中时。主要的动机来自于数学金融学在处理波动率模型时,但其结果也可以用在最优控制问题中。这里的目的是构造一个新的和有效的算法,以接近这个首中时。作为一个应用,我们将考虑Cox-Ingersoll-Ross过程在给定水平的首中时。我们使用的主要工具一方面是图像方法对这种特殊情况的适应,另一方面是Cox-Ingersoll-Ross过程和Bessel过程之间存在的联系。

英文摘要:

In this article we investigate the hitting time of some given boundaries for Bessel processes. The main motivation comes from mathematical finance when dealing with volatility models, but the results can also be used in optimal control problems. The aim here is to construct a new and efficient algorithm in order to approach this hitting time. As an application we will consider the hitting time of a given level for the Cox-Ingersoll-Ross process. The main tools we use are on one side, an adaptation of the method of images to this particular situation and on the other side, the connection that exists between Cox-Ingersoll-Ross processes and Bessel processes.

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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