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- W2829041732 abstract "Abstract In this work we derive new alternatives for efficient computation of the matrix exponential which is useful when solving Linear Initial Value Problems, vibratory systems or after semidiscretization of PDEs. We focus especially on the two classes of normal and nonnegative matrices and we present intervals of applications for rational L ∞ approximations of various degrees for these types of matrices in the lines of [7, 8]. Our method relies on Remez algorithm for rational approximation while the innovation here is the choice of the starting set of non-symmetrical Chebyshev points. Only one Remez iteration is then usually enough to quickly approach the actual L ∞ approximant." @default.
- W2829041732 created "2018-07-19" @default.
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- W2829041732 date "2018-12-01" @default.
- W2829041732 modified "2023-09-23" @default.
- W2829041732 title "Bounds for variable degree rational L∞ approximations to the matrix exponential" @default.
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- W2829041732 doi "https://doi.org/10.1016/j.amc.2018.06.040" @default.
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