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arXiv 2602.14588math.NAcs.NA
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全空间传输问题的新型后验误差估计

New a posteriori error estimates for full-space transmission problems

TU Wien(维也纳工业大学);TU Dresden(德累斯顿工业大学)

Alexander Freiszlinger, Dirk Pauly, Dirk Praetorius, Michael Schomburg

AI总结:

本文提出了一种新型后验误差估计方法,用于非线性泊松型传输问题的有限元边界元耦合公式,通过局部辅助问题提供保证上界并验证其有效性。

摘要:

本文推导了有限元边界元耦合公式在非线性泊松型传输问题中潜在误差的函数上界。所提出的后验误差估计独立于精确离散化方案,提供对潜在误差的保证上界。这些上界的计算基于在内部域和耦合边界附近条带域上的局部辅助有限元问题的解。数值实验展示了所提出的误差估计策略在相关自适应网格细化策略中的性能。

英文摘要:

In the present work, we derive functional upper bounds for the potential error arising from finite-element boundary-element coupling formulations for a nonlinear Poisson-type transmission problem. The proposed a posteriori error estimates are independent of the precise discretization scheme and provide guaranteed upper bounds for the potential error. The computation of these upper bounds is based on the solutions of local auxiliary finite element problems on patches in the interior domain and in a strip domain along the coupling boundary. Numerical experiments illustrate the performance of the proposed error estimation strategy for a related adaptive mesh-refinement strategy.

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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