Relationships among contour integral-based methods for solving generalized eigenvalue problems

Relationships among contour integral-based methods for solving generalized eigenvalue problems
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求解广义特征值问题的基于轮廓积分的方法之间的关系

DOI:
10.1007/s13160-016-0224-x
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发表时间:
2016-11
影响因子:
0.9
通讯作者:
Sakurai Tetsuya
Sakurai Tetsuya
中科院分区:
数学4区
文献类型:
--
作者:
Imakura Akira;Du Lei;Sakurai Tetsuya

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最近,基于轮廓积分的方法已被积极研究,用于解决内部特征值问题,找到位于某个区域的所有特征值及其相应的特征向量。本文从投影方法的角度出发,对五种典型的基于轮廓积分的特征值求解器的算法进行了重新审视,并映射了这些方法之间的关系。从分析中,我们得出结论,所有的轮廓积分为基础的本征解算器可以被视为投影方法,并可以根据其使用的子空间,投影的类型和问题,它们被隐含地应用。
Recently, contour integral-based methods have been actively studied for solving interior eigenvalue problems that find all eigenvalues located in a certain region and their corresponding eigenvectors. In this paper, we reconsider the algorithms of the five typical contour integral-based eigensolvers from the viewpoint of projection methods, and then map the relationships among these methods. From the analysis, we conclude that all contour integral-based eigensolvers can be regarded as projection methods and can be categorized based on their subspace used, the type of projection and the problem to which they are applied implicitly.
DOI: 10.1007/s11075-015-9987-4
发表时间: 2015
影响因子: 2.1
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期刊: ArXiv
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