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arXiv 1310.0965math.AP
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带惯性项和动力边界条件的非等温粘性Cahn-Hilliard方程

Non-isothermal viscous Cahn--Hilliard equation with inertial term and dynamic boundary conditions

Cecilia Cavaterra, Maurizio Grasselli, Hao Wu

摘要:

本文考虑了一个非等温的修正Cahn-Hilliard方程。这样的方程的特征在于一个惯性项和一个粘性项,它与一个双曲型热方程耦合。在无通量边界条件的情况下研究了所得到的系统。在这里,我们分析的情况下,序参数是受动态边界条件。这个假设需要一个更精确的策略来扩展以前的结果到目前的情况。更准确地说,我们首先证明了有界能量的解决方案以及弱解的适定性。然后,我们建立一个整体吸引子的存在性。最后,利用适当的Lojasiewicz-Simon不等式,证明了任意给定的弱解收敛于单个平衡点.

英文摘要:

We consider a non-isothermal modified Cahn--Hilliard equation which was previously analyzed by M. Grasselli et al. Such an equation is characterized by an inertial term and a viscous term and it is coupled with a hyperbolic heat equation. The resulting system was studied in the case of no-flux boundary conditions. Here we analyze the case in which the order parameter is subject to a dynamic boundary condition. This assumption requires a more refined strategy to extend the previous results to the present case. More precisely, we first prove the well-posedness for solutions with bounded energy as well as for weak solutions. Then we establish the existence of a global attractor. Finally, we prove the convergence of any given weak solution to a single equilibrium by using a suitable Lojasiewicz--Simon inequality.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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