The diagonal of the Padé table and the approximation of the Weyl function of second-order difference operators
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Publication:1381505
DOI10.1007/s003659900056zbMath0897.39003OpenAlexW1964359911MaRDI QIDQ1381505
Valeri A. Kaliaguine, Bernhard Beckermann
Publication date: 19 October 1998
Published in: Constructive Approximation (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1007/s003659900056
convergencespectrumPadé approximantsWeyl functionperiodic Jacobi matrixsecond-order difference operators
Padé approximation (41A21) Difference operators (39A70) Continued fractions; complex-analytic aspects (30B70) Linear difference operators (47B39)
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