scientific article; zbMATH DE number 1278004

zbMath0926.34066MaRDI QIDQ4239150

Tatsuya Koike

Publication date: 11 November 1999

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

differential equationasymptotics of eigenvalues

Mathematics Subject Classification ID

Particular ordinary differential operators (Dirac, one-dimensional Schrödinger, etc.) (34L40) Sturm-Liouville theory (34B24) General spectral theory of ordinary differential operators (34L05) Perturbation theories for operators and differential equations in quantum theory (81Q15) Singular perturbations, turning point theory, WKB methods for ordinary differential equations (34E20) Asymptotic distribution of eigenvalues, asymptotic theory of eigenfunctions for ordinary differential operators (34L20) Perturbations, asymptotics of solutions to ordinary differential equations (34E10) Asymptotic representations in the complex plane (30E15)

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