On an inverse eigenvalue problem for a semilinear Sturm–Liouville operator
✍ Scribed by Peter Zhidkov
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 188 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0362-546X
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✦ Synopsis
The following problem is considered:
where λ is a spectral parameter. The inverse problem is studied: a subsequence λ n → +∞ of the sequence of eigenvalues is given and odd f is the unknown quantity. A description of the whole class of solutions of this problem is obtained. In addition, it is proved that there exists at most one function f such that an auxiliary function is nondecreasing.
📜 SIMILAR VOLUMES
An inverse problem of spectral analysis is studied for Sturm-Liouville differential operators on a A-graph with the standard matching conditions for internal vertices. The uniqueness theorem is proved, and a constructive solution for this class of inverse problems is obtained.
We consider a certain Sturm -Liouville eigenvalue problem with self-adjoint and non ~ separated boundary conditions. We derive an explicit formula for the oscillation number of any given eigenfunction. 1991 Mathematics Subject Classification. 34 C 10. Keywords and phrases. Oscillation number, index
In this work, we study the inverse problem for the Sturm-Liouville operator -D 2 + q with discontinuity boundary conditions inside a finite closed interval. Using spectral data of a kind, it is shown that the potential function q(x) can be uniquely determined by a set of values of eigenfunctions at