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Some improved Ky Fan type eigenvalue inclusion sets for tensors
Calcolo ( IF 1.7 ) Pub Date : 2020-11-05 , DOI: 10.1007/s10092-020-00389-z
Yangyang Xu , Bing Zheng , Ruijuan Zhao

To locate the eigenvalues of a given tensor, we present two classes of new Ky Fan type eigenvalue inclusion sets for tensors, which are tighter than those in Yang et al. (SIAM J Matrix Anal Appl 31:2517–2530, 2010) and He et al. (J Inequal Appl 114:1-9, 2014), respectively. Under certain conditions, the theoretical comparisons of the new proposed Ky Fan type eigenvalue inclusion sets for tensors are established. As applications, some sufficient conditions for identifying strong \(\mathcal {M}\)-tensors, the non-singularity and positive definiteness of tensors are obtained. Some numerical examples are given to verify the validity of our theoretical results.



中文翻译:

张量的一些改进的Ky Fan型特征值包含集

为了找到给定张量的特征值,我们提出了两类新的张量的Ky Fan型特征值包含集,它们比Yang等人的方法更严格。(SIAM J Matrix Anal Appl 31:2517–2530,2010)和He等人。(J Inequal Appl 114:1-9,2014)。在特定条件下,建立了新的张量Ky Fan型特征值包含集的理论比较。作为应用,获得了确定强\(\ mathcal {M} \) -张量,张量的非奇异性和正定性的一些充分条件。通过数值算例,验证了本文理论结果的正确性。

更新日期:2020-11-05
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