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arXiv 0811.1704math.PR
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分支布朗运动:沿无标度路径的几乎必然增长

Branching Brownian motion: Almost sure growth along unscaled paths

Simon Harris, Matthew Roberts

摘要:

我们给出了新的结果的增长的粒子数在一个并矢分支布朗运动遵循一个固定的距离内的路径$f:[0,\infty)\to \mathbb{R}$。我们表明,它是可能的粒子数计数,而无需重新调整的路径。我们的结果表明,沿着某些路径的粒子数可以剧烈振荡。所使用的方法是完全概率性的,利用了由Lyons等人,Kyprianou和Hardy & Harris开发的脊柱技术。

英文摘要:

We give new results on the growth of the number of particles in a dyadic branching Brownian motion which follow within a fixed distance of a path $f:[0,\infty)\to \mathbb{R}$. We show that it is possible to count the number of particles without rescaling the paths. Our results reveal that the number of particles along certain paths can oscillate dramatically. The methods used are entirely probabilistic, taking advantage of the spine technique developed by, amongst others, Lyons et al, Kyprianou, and Hardy & Harris.

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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