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zbMath0668.34057MaRDI QIDQ3820968

I. N. Yakushina

Publication date: 1987

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

zbMATH Keywords

turning points second-order differential equation complex spectral parameter

Mathematics Subject Classification ID

Singular perturbations, turning point theory, WKB methods for ordinary differential equations (34E20) Asymptotic expansions of solutions to ordinary differential equations (34E05)

Related Items (2)

Asymptotic expansions for solutions of \(n\)th order linear ordinary differential equations with two turning points ⋮ Turning points for adiabatically perturbed periodic equations

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