arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.03857math.AP
收藏

一类非线性抛物型方程的尺度极限与随机均匀化

Scaling limits and stochastic homogenization for some nonlinear parabolic equations

Pierre Cardaliaguet, Nicolas Dirr, Panagiotis E. Souganidis

摘要:

该文致力于研究两个问题.第一部分是研究统计物理学中著名的Funaki-Spohn模型的抛物标度的、连续的、时空平稳的渐近性。在改变了未知量,要求一个随机扰动热方程的时空平稳永恒解的存在后,问题转化为一个一致椭圆型的、时空平稳的、散度型、非线性偏微分方程的定性均匀化问题,这是本文的第二个目的。一个重要的步骤是构造在无穷远处具有适当行为的校正器。

英文摘要:

The aim of this paper is twofold. The first is to study the asymptotics of a parabolically scaled, continuous and space-time stationary in time version of the well-known Funaki-Spohn model in Statistical Physics. After a change of unknowns requiring the existence of a space-time stationary eternal solution of a stochastically perturbed heat equation, the problem transforms to the qualitative homogenization of a uniformly elliptic, space-time stationary, divergence form, nonlinear partial differential equation, the study of which is the second aim of the paper. An important step is the construction of correctors with the appropriate behavior at infinity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑