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arXiv 1408.0628math.PR
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实直线上重扩散粒子的聚结系统

A system of coalescing heavy diffusion particles on the real line

Vitalii Konarovskyi

摘要:

我们构造了一个具有质量和能量守恒的修正Arratia流。我们假设粒子的质量服从守恒律,它们的扩散与质量成反比。我们的主要结果断言,这样一个系统存在的假设下,均匀的质量分布在一个区间上的开始时刻。我们引入了一个随机积分相对于这样的流量,并获得总的本地时间的密度的占领措施,为所有粒子。

英文摘要:

We construct a modified Arratia flow with mass and energy conservation. We suppose that particles have a mass obeying the conservation law, and their diffusion is inversely proportional to the mass. Our main result asserts that such a system exists under the assumption of the uniform mass distribution on an interval at the starting moment. We introduce a stochastic integral with respect to such a flow and obtain the total local time as the density of the occupation measure for all particles.

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