Advances in Differential Equations

The Cahn-Hilliard equation with dynamic boundary conditions

Reinhard Racke and Songmu Zheng

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Abstract

This paper is concerned with the following Cahn-Hilliard equation $ \psi _t = \Delta \mu, $ where $ \mu= -\Delta \psi -\psi +\psi ^3, $ subject on the boundary $\Gamma$ to the following dynamic boundary condition $ \sigma _s \Delta _{||} \psi - \partial _{\nu} \psi + h_s -g_s \psi = \frac{1}{\Gamma _s} \psi _t $ and $ \partial _{\nu} \mu =0, $ and the initial condition $ \psi |_{t=0}= \psi _0. $ This problem was recently proposed by physicists to describe spinodal decomposition of binary mixtures where the effective interaction between the wall (i.e., the boundary $\Gamma$) and two mixture components are short-ranged. The global existence and uniqueness of solutions to this initial boundary value problem with highest-order boundary conditions is proved.

Article information

Source
Adv. Differential Equations Volume 8, Number 1 (2003), 83-110.

Dates
First available in Project Euclid: 19 December 2012

Permanent link to this document
https://projecteuclid.org/euclid.ade/1355926869

Mathematical Reviews number (MathSciNet)
MR1946559

Zentralblatt MATH identifier
1035.35050

Subjects
Primary: 35K55: Nonlinear parabolic equations
Secondary: 35K20: Initial-boundary value problems for second-order parabolic equations 74N20: Dynamics of phase boundaries

Citation

Racke, Reinhard; Zheng, Songmu. The Cahn-Hilliard equation with dynamic boundary conditions. Adv. Differential Equations 8 (2003), no. 1, 83--110. https://projecteuclid.org/euclid.ade/1355926869.


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