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The Ostrowski theorem for matrices of operators
Linear and Multilinear Algebra ( IF 0.9 ) Pub Date : 2021-10-04 , DOI: 10.1080/03081087.2021.1985421 Yaru Qi 1 , Yuying Li 1 , Yihui Kong 1
中文翻译:
算子矩阵的 Ostrowski 定理
更新日期:2021-10-04
Linear and Multilinear Algebra ( IF 0.9 ) Pub Date : 2021-10-04 , DOI: 10.1080/03081087.2021.1985421 Yaru Qi 1 , Yuying Li 1 , Yihui Kong 1
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The classical Ostrowski Theorem gives an estimate for the eigenvalues of a matrix by a union of some disks. In this paper, we present the Ostrowski Theorem on the localization of the spectrum of an operator matrix.
中文翻译:
算子矩阵的 Ostrowski 定理
经典的 Ostrowski 定理通过一些圆盘的并集给出了矩阵特征值的估计。在本文中,我们提出了关于算子矩阵谱定位的 Ostrowski 定理。