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arXiv 1606.08060math.APnlin.AO
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具有阶跃运动弹性的介观模型在邻面上的连续极限

Continuum limit of a mesoscopic model with elasticity of step motion on vicinal surfaces

Yuan Gao, Jian-Guo Liu, Jianfeng Lu

摘要:

这项工作认为,严格推导连续模型的步进运动开始从一个介观伯顿-卡布雷拉-弗兰克(BCF)型模型的工作[Xiang,SIAM J。应用数学。2002]。证明了当格点参数趋于零时,在有限时间区间内,修正的离散模型以一阶收敛速度收敛于极限偏微分方程的强解。

英文摘要:

This work considers the rigorous derivation of continuum models of step motion starting from a mesoscopic Burton-Cabrera-Frank (BCF) type model following the work [Xiang, SIAM J. Appl. Math. 2002]. We prove that as the lattice parameter goes to zero, for a finite time interval, a modified discrete model converges to the strong solution of the limiting PDE with first order convergence rate.

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