
It is shown that spectral properties of Sturm–Liouville eigenvalue problems with indefinite weights are related to integral inequalities studied by Everitt. A result of Beals on indefinite problems leads to a sufficient condition for the validity of such an inequality. A Baire category argument is used to show that, in general, the inequality under consideration does not hold.
Sturm-Liouville theory, completeness of eigenfunctions, Hardy-Littlewood-Pólya type integral inequality, integral inequalities, Sturm-Liouville problems, Riesz basis, Eigenfunctions, eigenfunction expansions, completeness of eigenfunctions of ordinary differential operators
Sturm-Liouville theory, completeness of eigenfunctions, Hardy-Littlewood-Pólya type integral inequality, integral inequalities, Sturm-Liouville problems, Riesz basis, Eigenfunctions, eigenfunction expansions, completeness of eigenfunctions of ordinary differential operators
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 24 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |
