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Publication:2823916
zbMath1363.34086MaRDI QIDQ2823916
Publication date: 6 October 2016
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sturm-Liouville theory (34B24) Eigenfunctions, eigenfunction expansions, completeness of eigenfunctions of ordinary differential operators (34L10) Asymptotic distribution of eigenvalues, asymptotic theory of eigenfunctions for ordinary differential operators (34L20) Eigenvalues, estimation of eigenvalues, upper and lower bounds of ordinary differential operators (34L15)
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