Nakatsukasa, Yuji; Freund, Roland W. Computing fundamental matrix decompositions accurately via the matrix sign function in two iterations: the power of Zolotarev’s functions. (English) Zbl 1383.15012 SIAM Rev. 58, No. 3, 461-493 (2016). MSC: 15A23 65F15 65F30 65G50 PDFBibTeX XMLCite \textit{Y. Nakatsukasa} and \textit{R. W. Freund}, SIAM Rev. 58, No. 3, 461--493 (2016; Zbl 1383.15012) Full Text: DOI Link
Druskin, Vladimir; Guüttel, Stefan; Knizhnerman, Leonid Near-optimal perfectly matched layers for indefinite Helmholtz problems. (English) Zbl 1344.35009 SIAM Rev. 58, No. 1, 90-116 (2016). Reviewer: Andreas Kleefeld (Jülich) MSC: 35J05 65N06 65N55 30E10 65D25 PDFBibTeX XMLCite \textit{V. Druskin} et al., SIAM Rev. 58, No. 1, 90--116 (2016; Zbl 1344.35009) Full Text: DOI arXiv Link
Baratchart, L.; Kupin, S.; Lunot, V.; Olivi, M. Multipoint Schur algorithm and orthogonal rational functions. I: Convergence properties. (English) Zbl 1248.30015 J. Anal. Math. 114, 207-253 (2011). Reviewer: Leonid Golinskii (Kharkov) MSC: 30J10 33C47 30B70 PDFBibTeX XMLCite \textit{L. Baratchart} et al., J. Anal. Math. 114, 207--253 (2011; Zbl 1248.30015) Full Text: DOI arXiv
Nazarov, F.; Peherstorfer, F.; Volberg, A.; Yuditskii, P. Asymptotics of the best polynomial approximation of \(|x|^{p}\) and of the best Laurent polynomial approximation of \(\text{sgn}(x)\) on two symmetric intervals. (English) Zbl 1176.41032 Constr. Approx. 29, No. 1, 23-39 (2009). MSC: 41A44 30E10 PDFBibTeX XMLCite \textit{F. Nazarov} et al., Constr. Approx. 29, No. 1, 23--39 (2009; Zbl 1176.41032) Full Text: DOI arXiv
Eremenko, Alexandre; Yuditskii, Peter Uniform approximation of \(\text{sgn} (x)\) by polynomials and entire functions. (English) Zbl 1168.30020 J. Anal. Math. 101, 313-324 (2007). Reviewer: Rolf Wallisser (Freiburg i. Br.) MSC: 30E10 41A10 PDFBibTeX XMLCite \textit{A. Eremenko} and \textit{P. Yuditskii}, J. Anal. Math. 101, 313--324 (2007; Zbl 1168.30020) Full Text: DOI arXiv