Weak Solutions for the Cahn-Hilliard Equation with Degenerate Mobility

被引:61
|
作者
Dai, Shibin [1 ]
Du, Qiang [2 ]
机构
[1] New Mexico State Univ, Dept Math Sci, Las Cruces, NM 88003 USA
[2] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA
基金
美国国家科学基金会;
关键词
SURFACE MOTION;
D O I
10.1007/s00205-015-0918-2
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, we study the well-posedness of Cahn-Hilliard equations with degenerate phase-dependent diffusion mobility. We consider a popular form of the equations which has been used in phase field simulations of phase separation and microstructure evolution in binary systems. We define a notion of weak solutions for the nonlinear equation. The existence of such solutions is obtained by considering the limits of Cahn-Hilliard equations with non-degenerate mobilities.
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页码:1161 / 1184
页数:24
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