On Bounding Inverses to Nekrasov Matrices in the Infinity Norm

On Bounding Inverses to Nekrasov Matrices in the Infinity Norm
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DOI:
10.1007/s10958-014-1870-7
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发表时间:
2014-06
影响因子:
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通讯作者:
L. Y. Kolotilina
L. Y. Kolotilina
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文献类型:
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作者:
L. Y. Kolotilina

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Nekrasov矩阵的逆无穷范数的一个新的上界,改进了L. Cvetkovic等人最近提出的两个上界。数学。第一版。, 219,5020 - 5024(2013))。并证明了对于严格对角占优矩阵,所提出的界改进了经典的Varah上界。参考书目:9篇。
A new upper bound on the infinity norm of the inverse to a Nekrasov matrix, improving two recent bounds by L. Cvetkovic et al.(Appl. Math. Comput., 219, 5020–5024 (2013)), is obtained. Also it is shown that for a strictly diagonally dominant matrix, the bound suggested improves the classical Varah upper bound. Bibliography: 9 titles.