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arXiv 1204.4969math.PR
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反射扩散稳态分布的表征

Characterization of stationary distributions of reflected diffusions

Weining Kang, Kavita Ramanan

摘要:

给定域G,反射向量场d(.)在G的边界上,漂移和色散系数b(.)和σ(.),设L是与b(.)和σ(.)。在适当的假设下,特别是,确保相关的下鞅问题是适定性的,它表明,概率测度$π$ \bar{G}是一个平稳分布相应的反射扩散当且仅当$π(\partial G) = 0$和$\int_{\bar{G}} L f (x) π(dx) \leq 0$,每一个f在一定的一类检验函数。此外,假设被证明是满足一个大类的反射扩散在分段光滑的多维域可能斜反射。

英文摘要:

Given a domain G, a reflection vector field d(.) on the boundary of G, and drift and dispersion coefficients b(.) and σ(.), let L be the usual second-order elliptic operator associated with b(.) and σ(.). Under suitable assumptions that, in particular, ensure that the associated submartingale problem is well posed, it is shown that a probability measure $π$ on \bar{G} is a stationary distribution for the corresponding reflected diffusion if and only if $π(\partial G) = 0$ and $\int_{\bar{G}} L f (x) π(dx) \leq 0$ for every f in a certain class of test functions. Moreover, the assumptions are shown to be satisfied by a large class of reflected diffusions in piecewise smooth multi-dimensional domains with possibly oblique reflection.

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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