34-XX |
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Ordinary differential equations |
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34Lxx |
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Ordinary differential operators [See also 47E05] |
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34L05 |
General spectral theory of ordinary differential operators |
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34L10 |
Eigenfunctions, eigenfunction expansions, completeness of eigenfunctions of ordinary differential operators |
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34L15 |
Eigenvalues, estimation of eigenvalues, upper and lower bounds of ordinary differential operators |
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34L16 |
Numerical approximation of eigenvalues and of other parts of the spectrum of ordinary differential operators |
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34L20 |
Asymptotic distribution of eigenvalues, asymptotic theory of eigenfunctions for ordinary differential operators |
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34L25 |
Scattering theory, inverse scattering involving ordinary differential operators |
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34L30 |
Nonlinear ordinary differential operators |
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34L40 |
Particular ordinary differential operators (Dirac, one-dimensional Schrödinger, etc.) |
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34L99 |
None of the above, but in this section |