Heat kernel fluctuations and quantitative homogenization for the one-dimensional Bouchaud trap model

Heat kernel fluctuations and quantitative homogenization for the one-dimensional Bouchaud trap model
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一维布绍陷阱模型的热核波动和定量均质化

DOI:
10.1016/j.spa.2024.104336
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发表时间:
2023
影响因子:
1.4
通讯作者:
Takashi Kumagai
Takashi Kumagai
中科院分区:
数学3区
文献类型:
--
作者:
Sebastian Andres;D. Croydon;Takashi Kumagai

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我们提出了一维Bouchaud陷阱模型的对角线热核估计和定量均匀化陈述。热核估计是使用标准技术获得的,关键输入来自对所研究过程的不变测量的体积增长的仔细分析。定量均匀化结果包括淬火和退火的berry - esseen型定理,以及定量淬火的局部极限定理。虽然我们在这里研究的模型是随机环境中随机游走的一个特别简单的例子,但我们相信我们为建立后一种结果提供的路线图将有助于在其他更具挑战性的环境中推导定量局部极限定理。
We present on-diagonal heat kernel estimates and quantitative homogenization statements for the one-dimensional Bouchaud trap model. The heat kernel estimates are obtained using standard techniques, with key inputs coming from a careful analysis of the volume growth of the invariant measure of the process under study. As for the quantitative homogenization results, these include both quenched and annealed Berry–Esseen-type theorems, as well as a quantitative quenched local limit theorem. Whilst the model we study here is a particularly simple example of a random walk in a random environment, we believe the roadmap we provide for establishing the latter result in particular will be useful for deriving quantitative local limit theorems in other, more challenging, settings.
DOI: 10.1214/20-ejp478
发表时间: 2020
影响因子: 1.4
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