Journal of Shanghai University(Natural Science Edition)
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GU Chuan-qing,WANG Feng
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Abstract: In terms of the recursive relation in the Lagrange polynomial form, a method of Lagrange-type matrix rational interpolation is presented in the inner product space. When all interpolation points approach zero, a matrix Padé approximation with chosen coefficients is constructed, whose coefficients can be obtained by the least square method. An error formula of the matrix Padé approximation is given.
Key words: Lagrange polynomial, rational interpolation, matrix Padé approximation, matrix-valued
CLC Number:
O241.5
GU Chuan-qing;WANG Feng. A MatrixPadé Approximation with Chosen Coefficients[J]. Journal of Shanghai University(Natural Science Edition).
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URL: https://www.journal.shu.edu.cn/EN/
https://www.journal.shu.edu.cn/EN/Y2008/V14/I1/36