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arXiv 1302.4087math.PR
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原点具有催化分支的分支布朗运动

Branching Brownian Motion with catalytic branching at the origin

Sergey Bocharov, Simon C. Harris

摘要:

考虑一个分支布朗运动,其中只有当粒子在局部时间尺度上以速率β> 0位于原点时,才发生二分裂.当λ> 0时,我们得到了关于λt以上粒子数在时间t的渐近行为的结果。作为推论,我们建立了最右边粒子的几乎必然渐近速度。我们还证明了这种催化分支布朗运动的一个强大数律。

英文摘要:

We consider a branching Brownian motion in which binary fission takes place only when particles are at the origin at a rate β> 0 on the local time scale. We obtain results regarding the asymptotic behaviour of the number of particles above λt at time t, for λ> 0. As a corollary, we establish the almost sure asymptotic speed of the rightmost particle. We also prove a Strong Law of Large Numbers for this catalytic branching Brownian motion.

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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