Conservative stochastic two-dimensional Cahn–Hilliard equation

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-06-01 DOI:10.1214/20-aap1620

M. Röckner, Huanyu Yang, Rongchan Zhu

引用次数: 2

Abstract

We consider the stochastic two-dimensional Cahn–Hilliard equation which is driven by the derivative in space of a space-time white noise. We use two different approaches to study this equation. First we prove that there exists a unique solution Y to the shifted equation (1.4). Then X:=Y+Z is the unique solution to the stochastic Cahn–Hilliard equation, where Z is the corresponding O-U process. Moreover, we use the Dirichlet form approach in (Probab. Theory Related Fields 89 (1991) 347–386) to construct a probabilistically weak solution to the original equation (1.1) below. By clarifying the precise relation between the two solutions, we also get the restricted Markov uniqueness of the generator and the uniqueness of the martingale solutions to the equation (1.1). Furthermore, we also obtain exponential ergodicity of the solutions.

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保守随机二维Cahn–Hilliard方程

我们考虑由时空白噪声的空间导数驱动的随机二维Cahn–Hilliard方程。我们用两种不同的方法来研究这个方程。首先，我们证明了移位方程（1.4）存在唯一解Y。然后X:=Y+Z是随机Cahn–Hilliard方程的唯一解，其中Z是相应的O-U过程。此外，我们在（Probab.Theory Related Fields 89（1991）347–386）中使用狄利克雷形式方法来构造下面原始方程（1.1）的概率弱解。通过澄清这两个解之间的精确关系，我们还得到了方程（1.1）的生成元的受限马尔可夫唯一性和鞅解的唯一性，此外，我们还获得了解的指数遍历性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.