Determination of singularities of a function from its perturbation expansion

DOI10.1088/0305-4470/38/18/010zbMath1065.81063OpenAlexW2018616029MaRDI QIDQ4678039

J. Zamastil, F. Vinetti

Publication date: 23 May 2005

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

Full work available at URL: https://doi.org/10.1088/0305-4470/38/18/010

Mathematics Subject Classification ID

Power series (including lacunary series) in one complex variable (30B10) Perturbation theories for operators and differential equations in quantum theory (81Q15) Analytic continuation of functions of one complex variable (30B40)

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