Fast Calderón Preconditioning for the Electric Field Integral Equation

Fast Calderón Preconditioning for the Electric Field Integral Equation
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电场积分方程的快速 Calderón 预处理

DOI:
10.1109/tap.2019.2891608
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发表时间:
2019
影响因子:
5.7
通讯作者:
C. Jerez
C. Jerez
中科院分区:
计算机科学2区
文献类型:
--
作者:
Paul Escapil;C. Jerez

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尽管其坚实的数学背景,标准的Calderón预处理电场积分方程的规模较差的网格细化,由于其建设的重心网格。基于分层矩阵,我们提出的算法最佳地分裂的解决方案和预处理器的准确性,显着减少计算时间和内存需求,同时保留了原来的Calderón预处理器的良好性能。数值实验验证了我们的索赔日益复杂的设置,产生的结果相比,如近场预处理代数技术,并提供深入的研究途径。
Despite its solid mathematical background, the standard Calderón preconditioning for the electric field integral equation scales poorly with respect to the mesh refinement due to its construction over barycentric meshes. Based on hierarchical matrices, our proposed algorithm optimally splits solution and preconditioner accuracies, significantly reducing computation times and memory requirements while retaining the good properties of the original Calderón preconditioner. Numerical experiments validate our claims for increasingly complex settings, yielding results comparable to those given by algebraic techniques such as near-field preconditioners and providing insights into further research avenues.
DOI: 10.1016/j.camwa.2017.07.049
发表时间: 2017
影响因子: 2.9
作者:
Scroggs M
通讯作者: Scroggs M
DOI: 10.1109/tap.2017.2738061
发表时间: 2017-08
影响因子: 5.7
作者:
Y. Beghein;R. Mitharwal;K. Cools;F. Andriulli
通讯作者: Y. Beghein;R. Mitharwal;K. Cools;F. Andriulli