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arXiv 1602.00744math.NAcs.NA
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涡流方程-LLG方程耦合-第一部分:有限元-边界元耦合

The Eddy Current-LLG Equations-Part I: FEM-BEM Coupling

The University of New South Wales(新南威尔士大学)

Michael Feischl, Thanh Tran

AI总结:

本文研究了三维涡流方程与有限域内LLG方程耦合问题,采用有限元-边界元耦合方法求解,证明了有限元解弱收敛性,后续将给出先验误差估计。

摘要:

本文分析了三维涡流方程与有限域内LLG方程耦合系统的数值方法。无限域通过有限元-边界元耦合进行离散化。尽管所考虑的问题高度非线性,但该数值方法仅需每个时间步求解两个线性系统。本文第一部分证明了有限元解弱收敛性( subsequences)向弱解收敛。后续将给出先验误差估计。

英文摘要:

We analyse a numerical method for the coupled system of the eddy current equations in $\mathbb{R}^3$ with the Landau-Lifshitz-Gilbert equation in a bounded domain. The unbounded domain is discretised by means of finite-element/boundary-element coupling. Even though the considered problem is strongly nonlinear, the numerical approach is constructed such that only two linear systems per time step have to be solved. In this first part of the paper, we prove unconditional weak convergence (of a subsequence) of the finite-element solutions towards a weak solution. A priori error estimates will be presented in the second part.

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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