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Sibirskii Zhurnal Vychislitel'noi Matematiki, 2001, Volume 4, Number 3, Pages 285–293
(Mi sjvm402)
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On the construction of a normal pseudo-solution for a system of linear equations with a rectangular matrix
A. I. Rozhenko Institute of Computational Mathematics and Mathematical Geophysics (Computing Center), Siberian Branch of the Russian Academy of Sciences
Abstract:
A modified $QR$ factorization algorithm is proposed. It allows us to construct a normal pseudo-solution of
a System of Linear Algebraic Equations (SLAE) for a rectangular or square degenerate matrix with the same
efficiency as for SLAE with a square nonsingular matrix. As an application, the construction of an analytic
spline on a degenerate mesh is studied, and a modified algorithm is proposed to provide the “best” spline
solution.
Received: 10.10.2000 Revised: 12.02.2001
Citation:
A. I. Rozhenko, “On the construction of a normal pseudo-solution for a system of linear equations with a rectangular matrix”, Sib. Zh. Vychisl. Mat., 4:3 (2001), 285–293
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https://www.mathnet.ru/eng/sjvm402 https://www.mathnet.ru/eng/sjvm/v4/i3/p285
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Abstract page: | 1800 | Full-text PDF : | 1771 | References: | 59 |
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