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- W2345047788 abstract "In recent years, a great interest has been shown towards Krylov subspace techniques applied to model order reduction of large-scale dynamical systems. A special interest has been devoted to single-input single-output (SISO) systems by using moment matching techniques based on Arnoldi or Lanczos algorithms. In this paper, we consider multiple-input multiple-output (MIMO) dynamical systems and introduce the rational block Arnoldi process to design low order dynamical systems that are close in some sense to the original MIMO dynamical system. Rational Krylov subspace methods are based on the choice of suitable shifts that are selected a priori or adaptively. In this paper, we propose an adaptive selection of those shifts and show the efficiency of this appr oach in our numerical tests. We also give some new block Arnoldi-like relations that are used to propose an upper bound for the norm of the error on the transfer function. m ∈ R m×p , xm(t), ym(t) ∈ R m , and m≪ n, while maintaining the most relevant properties of" @default.
- W2345047788 created "2016-06-24" @default.
- W2345047788 creator A5005344548 @default.
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- W2345047788 date "2016-04-28" @default.
- W2345047788 modified "2023-09-24" @default.
- W2345047788 title "Adaptive rational block Arnoldi methods for model reductions in large-scale MIMO dynamical systems" @default.
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- W2345047788 doi "https://doi.org/10.20852/ntmsci.2016218259" @default.
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