Asymptotic Behavior of Density in the Boundary-Driven Exclusion Process on the Sierpinski Gasket
Asymptotic Behavior of Density in the Boundary-Driven Exclusion Process on the Sierpinski Gasket
复制标题
Sierpinski 垫片边界驱动排除过程中密度的渐近行为
DOI:
10.1007/s11040-021-09392-4
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Gonçalves, Patrícia
中科院分区:
文献类型:
--
作者:
Chen, Joe P.;Gonçalves, Patrícia
We derive the macroscopic laws that govern the evolution of the density of particles in the exclusion process on the Sierpinski gasket in the presence of a variable speed boundary. We obtain, at the hydrodynamics level, the heat equation evolving on the Sierpinski gasket with either Dirichlet or Neumann boundary conditions, depending on whether the reservoirs are fast or slow. For a particular strength of the boundary dynamics we obtain linear Robin boundary conditions. As for the fluctuations, we prove that, when starting from the stationary measure, namely the product Bernoulli measure in the equilibrium setting, they are governed by Ornstein-Uhlenbeck processes with the respective boundary conditions.
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