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arXiv 1209.0440math.PR
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自旋布朗运动

Spinning Brownian motion

Mauricio A. Duarte

摘要:

我们证明了强存在性和唯一性的反射过程$X$在一个光滑的,有界的区域$D$的行为类似于反射布朗运动,除了反射的方向取决于一个(自旋)参数$S$,只有当$X$是根据物理规则的边界上的$D$。过程$(X,S)$是退化扩散。我们使用的技术的基础上的游览$X$从$\partial D$,和相关的出口系统的平稳分布的唯一性。我们还表明,该过程承认一个下鞅制定和使用相关的结果显示的平稳分布的例子。

英文摘要:

We prove strong existence and uniqueness for a reflection process $X$ in a smooth, bounded domain $D$ that behaves like obliquely-reflected-Brownian-motion, except that the direction of reflection depends on a (spin) parameter $S$, which only changes when $X$ is on the boundary of $D$ according to a physical rule. The process $(X,S)$ is a degenerate diffusion. We show uniqueness of the stationary distribution by using techniques based on excursions of $X$ from $\partial D$, and an associated exit system. We also show that the process admits a submartingale formulation and use related results to show examples of the stationary distribution.

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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