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arXiv 1503.00927math.AP
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模拟肿瘤生长的Cahn-Hilliard型相场系统的渐近分析和误差估计

Asymptotic analyses and error estimates for a Cahn-Hilliard type phase field system modelling tumor growth

Pierluigi Colli, Gianni Gilardi, Elisabetta Rocca, Jürgen Sprekels

摘要:

本文讨论了一个与肿瘤生长模型有关的Cahn-Hilliard型相场系统,它由三个以序参量、化学势和营养浓度为变量的方程组成。最近的论文arXiv:1401.5943 [math.AP]和arXiv:1501.07057 [math.AP]从适定性、长时间行为和两个正粘性系数同时趋于零时的渐近收敛的角度研究了这个系统。在这里,我们继续arXiv:1501.07057 [math.AP]中执行的分析,显示两组独立的结果,因为只有一个系数趋于零,另一个保持不变。我们证明了收敛性结果,两个极限问题的解决方案的唯一性,以及适当的误差估计。

英文摘要:

This paper is concerned with a phase field system of Cahn-Hilliard type that is related to a tumor growth model and consists of three equations in terms of the variables order parameter, chemical potential and nutrient concentration. This system has been investigated in the recent contributions arXiv:1401.5943 [math.AP] and arXiv:1501.07057 [math.AP] from the viewpoint of well-posedness, long time behavior and asymptotic convergence as two positive viscosity coefficients tend to zero at the same time. Here, we continue the analysis performed in arXiv:1501.07057 [math.AP] by showing two independent sets of results as just one of the coefficients tends to zero, the other remaining fixed. We prove convergence results, uniqueness of solutions to the two resulting limit problems, and suitable error estimates.

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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