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arXiv 1102.1842math.PR
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Wasserstein度量中带谱隙马氏过程的中心极限定理

Central limit theorem for Markov processes with spectral gap in the Wasserstein metric

Tomasz Komorowski, Anna Walczuk

摘要:

假设$\{X_t,\,t\ge0\}$是一个非平稳马尔可夫过程,取值于波兰度量空间$E$。证明了$\int_0^Tψ(X_s)ds$形式的可加泛函的大数定律和中心极限定理,条件是定义在测度上的对偶转移概率半群在适当的Wasserstein度量下是强压缩的.假定函数$ψ$是$E$上的Lipschitz。

英文摘要:

Suppose that $\{X_t,\,t\ge0\}$ is a non-stationary Markov process, taking values in a Polish metric space $E$. We prove the law of large numbers and central limit theorem for an additive functional of the form $\int_0^Tψ(X_s)ds$, provided that the dual transition probability semigroup, defined on measures, is strongly contractive in an appropriate Wasserstein metric. Function $ψ$ is assumed to be Lipschitz on $E$.

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