Explicit formulas for the inverses of Toeplitz matrices, with applications
Explicit formulas for the inverses of Toeplitz matrices, with applications
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Toeplitz 矩阵逆的显式公式及其应用
DOI:
10.1007/s00440-022-01162-9
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发表时间:
2023
影响因子:
2
通讯作者:
Akihiko Inoue
中科院分区:
文献类型:
--
作者:
吉田 裕亮;瀬戸 道生;Akihiko Inoue
We derive novel explicit formulas for the inverses of truncated block Toeplitz matrices that correspond to a multivariate minimal stationary process. The main ingredients of the formulas are the Fourier coefficients of the phase function attached to the spectral density of the process. The derivation of the formulas is based on a recently developed finite prediction theory applied to the dual process of the stationary process. We illustrate the usefulness of the formulas by two applications. The first one is a strong convergence result for solutions of general block Toeplitz systems for a multivariate short-memory process. The second application is closed-form formulas for the inverses of truncated block Toeplitz matrices corresponding to a multivariate ARMA process. The significance of the latter is that they provide us with a linear-time algorithm to compute the solutions of corresponding block Toeplitz systems.
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影响因子:
2
作者:
R. Cheng;M. Pourahmadi
通讯作者:
M. Pourahmadi
DOI:
10.1007/978-3-0348-8944-5_14
发表时间:
2007
期刊:
arXiv: Classical Analysis and ODEs
影响因子:
--
作者:
V. Katsnelson;B. Kirstein
通讯作者:
B. Kirstein
影响因子:
4.5
作者:
S. Rao;Junho Yang
通讯作者:
Junho Yang
DOI:
10.1007/bf02788986
发表时间:
2000
期刊:
Journal d’Analyse Mathématique
影响因子:
--
作者:
A. Inoue
通讯作者:
A. Inoue
影响因子:
2
作者:
A. Inoue
通讯作者:
A. Inoue