A quenched local limit theorem for stochastic flows
A quenched local limit theorem for stochastic flows
复制标题
随机流的淬灭局部极限定理
DOI:
10.1016/j.jfa.2021.109372
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发表时间:
2022
影响因子:
1.7
通讯作者:
Gu, Yu
中科院分区:
文献类型:
--
作者:
Dunlap, Alexander;Gu, Yu
We consider a particle undergoing Brownian motion in Euclidean space of any dimension, forced by a Gaussian random velocity field that is white in time and smooth in space. We show that conditional on the velocity field, the quenched density of the particle after a long time can be approximated pointwise by the product of a deterministic Gaussian density and a spacetime-stationary random field U. If the velocity field is additionally assumed to be incompressible, then U≡ 1 almost surely and we obtain a local central limit theorem.
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