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arXiv 1102.0315math.AP
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高振荡薄区域中Neumann问题的误差估计

Error estimates for a Neumann problem in highly oscillating thin domains

Marcone Corrêa Pereira, Ricardo Parreira da Silva

摘要:

在这项工作中,我们分析了收敛的解决方案的拉普拉斯算子与诺依曼边界条件在一个二维的高度振荡域退化成一个片段(薄域)的实数线。我们考虑的情况下,薄域的高度,振幅和周期的振荡都是相同的顺序,由一个小参数$ε$。我们研究强收敛性的解决方案,使用适当的校正方法。当我们用多尺度方法代替原始解进行二阶展开时,我们也给出了误差估计。

英文摘要:

In this work we analyze convergence of solutions for the Laplace operator with Neumann boundary conditions in a two-dimensional highly oscillating domain which degenerates into a segment (thin domains) of the real line. We consider the case where the height of the thin domain, amplitude and period of the oscillations are all of the same order, given by a small parameter $ε$. We investigate strong convergence properties of the solutions using an appropriate corrector approach. We also give error estimates when we replace the original solutions for the second-order expansion through the Multiple-Scale Method.

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