Fixed-point perturbation theory and the potential r2+ λr2/(1+gr2). I. Analysis of convergence

DOI10.1088/0305-4470/17/18/014zbMATH Open0563.41027OpenAlexW2083195523MaRDI QIDQ3676611

Miloslav Znojil

Publication date: 1984

Published in: Journal of Physics A: Mathematical and General (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1088/0305-4470/17/18/014

zbMATH Keywords

differential Schrödinger equationwavefunction projections

Mathematics Subject Classification ID

Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other equations of quantum mechanics (81Q05) Asymptotic approximations, asymptotic expansions (steepest descent, etc.) (41A60) Perturbation theories for operators and differential equations in quantum theory (81Q15) Continued fractions; complex-analytic aspects (30B70) Series expansions (e.g., Taylor, Lidstone series, but not Fourier series) (41A58) Convergence and divergence of continued fractions (40A15) Acceleration of convergence in numerical analysis (65B99)

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