
The authors weaken the conditions and simplify the proof of a theorem of \textit{X. F. Yang} [A new inverse nodal problem, J. Differ. Equations (to appear)]. It is known that the usual nodal inverse problem developed by \textit{J. R. McLaughlin} [J. Differ. Equations, 73, No. 2, 354-362 (1988; Zbl 0652.34029)] is overdetermined. That makes possible to reduce the data sufficient to determine the potential of the Sturm-Liouville equation and the boundary conditions. The authors use the results of \textit{F. Gesztesy} and \textit{B. Simon} [Inverse spectral analysis with partial information on the potential, II, The case of discrete spectrum, Trans. Am. Math. Soc. 352, No. 6, 2765-2787 (2000)].
Sturm-Liouville theory, nodal length, Borg's theorem, Applied Mathematics, Inverse problems involving ordinary differential equations, nodal inverse problem, Sturm-Liouville problem, Analysis
Sturm-Liouville theory, nodal length, Borg's theorem, Applied Mathematics, Inverse problems involving ordinary differential equations, nodal inverse problem, Sturm-Liouville problem, Analysis
| 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). | 73 | |
| 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. | Top 10% | |
| 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. | Average |
