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arXiv 1501.03476math.PRmath.AP
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退化无界随机介质中扩散的局部中心极限定理

Local Central Limit Theorem for diffusions in a degenerate and unbounded Random Medium

Alberto Chiarini, Jean-Dominique Deuschel

摘要:

研究了平稳遍历环境中散度型的$\mathbb{R}^d$上的对称扩散$X$,其系数可测为无界退化.在环境的某些矩条件下,证明了$X$的猝灭局部中心极限定理,其关键工具是用Moser迭代技巧得到的局部抛物Harnack不等式.

英文摘要:

We study a symmetric diffusion $X$ on $\mathbb{R}^d$ in divergence form in a stationary and ergodic environment, with measurable unbounded and degenerate coefficients. We prove a quenched local central limit theorem for $X$, under some moment conditions on the environment; the key tool is a local parabolic Harnack inequality obtained with Moser iteration technique.

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