Robust exponential attractors for the modified phase-field crystal equation

Robust exponential attractors for the modified phase-field crystal equation
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修正相场晶体方程的鲁棒指数吸引子

DOI:
10.3934/dcds.2015.35.2539
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发表时间:
2013-12
期刊:
Discrete Contin. Dyn. Syst. Ser. A,
影响因子:
--
通讯作者:
Hao Wu
Hao Wu
中科院分区:
其他
文献类型:
--
作者:
M. Grasselli;Hao Wu

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我们考虑最近由P. Stefanovic等人提出的修正的相场晶体(MPFC)方程。这是K. R. Elder等人,其特征在于存在惯性项$\beta\phi_{tt}$。这里$\phi$是代表原子数密度的相位函数,$\beta\geq 0$是弛豫时间。分析了MPFC方程关于参数$\beta$的相关动力学系统。更准确地说,我们建立了一个家庭的指数吸引$\mathcal{M}_\beta$的存在性是H\“旧连续的关于$\beta$。
We consider the modified phase-field crystal (MPFC) equation that has recently been proposed by P. Stefanovic et al. This is a variant of the phase-field crystal (PFC) equation, introduced by K.-R. Elder et al., which is characterized by the presence of an inertial term $\beta\phi_{tt}$. Here $\phi$ is the phase function standing for the number density of atoms and $\beta\geq 0$ is a relaxation time. The associated dynamical system for the MPFC equation with respect to the parameter $\beta$ is analyzed. More precisely, we establish the existence of a family of exponential attractors $\mathcal{M}_\beta$ that are H\"older continuous with respect to $\beta$.
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