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
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通讯作者:
L. Y. Kolotilina
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文献类型:
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作者:
L. Y. Kolotilina
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.