On nonnegative solutions for the Functionalized Cahn–Hilliard equation with degenerate mobility

On nonnegative solutions for the Functionalized Cahn–Hilliard equation with degenerate mobility
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具有简并迁移率的函数化 Cahn-Hilliard 方程的非负解

DOI:
10.1016/j.rinam.2021.100195
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发表时间:
2021
影响因子:
2
通讯作者:
Promislow, Keith
Promislow, Keith
中科院分区:
--
文献类型:
--
作者:
Dai, Shibin;Liu, Qiang;Luong, Toai;Promislow, Keith

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摘要提出了泛函Cahn-Hilliard方程作为两亲分子相分离混合物界面能的模型。研究了具有退化迁移率M(U)的泛函Cahn-Hilliard方程梯度流的非负弱解的存在性,它对u≤0为零.假设初始数据u0(X)为正,我们构造了一个弱解作为非退化迁移率对应的解的极限,并证明了它满足一个能量耗散不等式。我们的方法是Galerkin近似、能量估计和弱收敛方法的组合。
Abstract The Functionalized Cahn–Hilliard equation has been proposed as a model for the interfacial energy of phase-separated mixtures of amphiphilic molecules. We study the existence of a nonnegative weak solutions of a gradient flow of the Functionalized Cahn–Hilliard equation subject to a degenerate mobility M (u) that is zero for u≤ 0. Assuming the initial data u 0 (x) is positive, we construct a weak solution as the limit of solutions corresponding to non-degenerate mobilities and verify that it satisfies an energy dissipation inequality. Our approach is a combination of Galerkin approximation, energy estimates, and weak convergence methods.
高两亲性混合物的余维一最小化剂
DOI: 10.1016/j.cam.2020.113320
发表时间: 2021
影响因子: 2.4
作者:
Dai, Shibin;Promislow, Keith
通讯作者: Promislow, Keith
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发表时间: 2019-03
影响因子: 1.1
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通讯作者: Shibin Dai;Qiang Liu;K. Promislow
对“关于‘相场模型中的简并迁移率不足以捕获表面扩散’的评论”的回应 [Appl. 108, 036101 (2016)]
DOI: --
发表时间: 2016
期刊:
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简并迁移率 Cahn-Hilliard 方程的锐界面极限
DOI: 10.1137/140960189
发表时间: 2015
期刊: SIAM J. Appl. Math.
影响因子: --
作者:
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通讯作者: E. Süli
DOI: 10.1137/130941432
发表时间: 2015
期刊: SIAM J. Math. Anal.
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通讯作者: K. Promislow