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Zapiski Nauchnykh Seminarov LOMI, 1984, Volume 139, Pages 74–93
(Mi znsl1738)
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This article is cited in 1 scientific paper (total in 2 paper)
Construction of a fundamental series of solutions of a pencil of matrices
V. N. Kublanovskaya, T. V. Vashchenko
Abstract:
Solution of spectral problems for a singular polynomial pencil of matrices $D(\lambda)$ of degree $s\geqslant1$ and size $m\times n$ is considered. Two algorithms for constructing polynomials solutions of pencils $D(\lambda)$ are considered: the first is a modification of an algorithm proposed earlier by one of the authors for determining polynomial solutions of a linear pencil; the second algorithm is based on other ideas and consists of two steps. At the first step a finite sequence of auxiliary pencils is constructed for each of which a basis of polynomial solutions of degree zero is found. At the second step the basis so constructed are rearranged into polynomial solutions of the original polynomial pencil $D(\lambda)$. Both algorithms make it possible to find solutions of the original pencil in order of increasing degrees. For constructing a fundamental series of solutions of the pencil $D(\lambda)$ two new algorithms are proposed which work independently with either of the algorithms mentioned above for constructing polynomial solutions by rearranging them into linearly independent solutions of the pencil.
Citation:
V. N. Kublanovskaya, T. V. Vashchenko, “Construction of a fundamental series of solutions of a pencil of matrices”, Computational methods and algorithms. Part VII, Zap. Nauchn. Sem. LOMI, 139, "Nauka", Leningrad. Otdel., Leningrad, 1984, 74–93; J. Soviet Math., 36:2 (1987), 224–239
Linking options:
https://www.mathnet.ru/eng/znsl1738 https://www.mathnet.ru/eng/znsl/v139/p74
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Abstract page: | 253 | Full-text PDF : | 69 |
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