arXivDaily arXiv每日学术速递 周一至周五更新
arXiv math/0607321math.PR
收藏

不相交布朗游程

Nonintersecting Brownian excursions

Craig A. Tracy, Harold Widom

摘要:

我们考虑条件为不相交的$n$布朗游程过程。我们证明了上曲线和下曲线的分布函数等于弗雷德霍姆行列式,我们明确给出了它的核。在最简单的情况下,这些行列式可以用Painlevé V函数表示。我们证明了作为$n\to \infty$,底部曲线的分布极限是参数为1/2的Bessel过程。(This是与戴森布朗运动相关的贝塞尔过程。)我们应用这些结果来研究底部和顶部曲线下的预期面积。

英文摘要:

We consider the process of $n$ Brownian excursions conditioned to be nonintersecting. We show the distribution functions for the top curve and the bottom curve are equal to Fredholm determinants whose kernel we give explicitly. In the simplest case, these determinants are expressible in terms of Painlevé V functions. We prove that as $n\to \infty$, the distributional limit of the bottom curve is the Bessel process with parameter 1/2. (This is the Bessel process associated with Dyson's Brownian motion.) We apply these results to study the expected area under the bottom and top curves.

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。

↑