An existence and uniqueness result for a phase-field model of diffusion-induced grain-boundary motion

An existence and uniqueness result for a phase-field model of diffusion-induced grain-boundary motion
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扩散引起的晶界运动相场模型的存在唯一性结果

DOI:
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发表时间:
2001
期刊:
Proceedings of the Royal Society of Edinburgh: Section A Mathematics
影响因子:
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通讯作者:
C. M. Elliott
C. M. Elliott
中科院分区:
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文献类型:
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作者:
K. Deckelnick;C. M. Elliott

文献摘要

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我们考虑扩散引起的晶界运动的相场模型。该模型将抛物线变分不等式与简并扩散方程耦合起来。使用正则化技术,我们证明了所得系统的存在定理。如果解决方案具有一些额外的规律性,我们还会获得唯一性结果。
We consider a phase-field model for diffusion-induced grain boundary motion. The model couples a parabolic variational inequality to a degenerate diffusion equation. Using a regularization technique, we prove an existence theorem for the resulting system. We also obtain a uniqueness result, provided the solution has some additional regularity.