A new numerical algorithm for the analytic continuation of Green's functions

DOI10.1006/jcph.1996.0123zbMath0855.65002OpenAlexW2017198957MaRDI QIDQ1917112

Bengt Fornberg, Vincent D. Natoli, Morrel H. Cohen

Publication date: 11 February 1997

Published in: Journal of Computational Physics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1006/jcph.1996.0123

zbMATH Keywords

fast Fourier transformenergy spectrumHermitian operatorresolventsnumerical analytic continuationfinite difference techniquescondensed matter systemsGreen's function operatorHerglotz propertyKohn-Sham Green's functions

Mathematics Subject Classification ID

Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other equations of quantum mechanics (81Q05) Algorithms for approximation of functions (65D15)

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