Structure of avoided crossings for eigenvalues related to equations of Heun's class

DOI10.1088/0305-4470/30/2/027zbMath0948.34059OpenAlexW2055587410MaRDI QIDQ4950264

S. Yu. Slavyanov, N. A. Veshev

Publication date: 8 May 2000

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

Full work available at URL: https://doi.org/10.1088/0305-4470/30/2/027

zbMATH Keywords

eigenvaluesboundary value problemsdifferential equationscrossings of eigenvalues curves

Mathematics Subject Classification ID

Asymptotic distribution of eigenvalues, asymptotic theory of eigenfunctions for ordinary differential operators (34L20) Special ordinary differential equations (Mathieu, Hill, Bessel, etc.) (34B30) Asymptotic expansions of solutions to ordinary differential equations (34E05) Eigenvalues, estimation of eigenvalues, upper and lower bounds of ordinary differential operators (34L15)

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