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Zapiski Nauchnykh Seminarov POMI, 2019, Volume 482, Pages 184–200
(Mi znsl6836)
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This article is cited in 4 scientific papers (total in 4 papers)
New classes of nonsingular matrices and upper bounds for their inverses
L. Yu. Kolotilina St. Petersburg Department of Steklov Mathematical Institute of Russian Academy of Sciences
Abstract:
The paper introduces new classes of nonsingular matrices, which extend some known subclasses of the class of nonsingular $\mathcal{H}$-matrices, such as the Nekrasov, $Q$-Nekrasov, $\{P_1,P_2\}$-Nekrasov, and DZ matrices. For matrices in the classes introduced, upper bounds for $\|A^{-1}\|_\infty$ are derived (in a unified manner) and shown to improve the known bounds for matrices from the corresponding subclasses of nonsingular $\mathcal{H}$-matrices.
Key words and phrases:
Nekrasov matrices, $Q$-Nekrasov matrices, $\{P_1,P_2\}$-Nekrasov matrices, DZ matrices, $S$-SDD matrices, $S$-Nekrasov matrices, SDD matrices, reverse matrix, infinity norm, upper bound, $\mathcal M$-matrices, $\mathcal H$-matrices.
Received: 30.09.2019
Citation:
L. Yu. Kolotilina, “New classes of nonsingular matrices and upper bounds for their inverses”, Computational methods and algorithms. Part XXXII, Zap. Nauchn. Sem. POMI, 482, POMI, St. Petersburg, 2019, 184–200
Linking options:
https://www.mathnet.ru/eng/znsl6836 https://www.mathnet.ru/eng/znsl/v482/p184
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Statistics & downloads: |
Abstract page: | 117 | Full-text PDF : | 34 | References: | 20 |
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