Abstract
The inverse spectral problems are studied for the Sturm–Liouville operator on the star-shaped graph and for the matrix Sturm–Liouville operator with one boundary condition in the general self-adjoint form. We obtain necessary and sufficient conditions of solvability for these two inverse problems, and also prove their local solvability and stability.
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This work was supported by Grant 19-71-00009 of the Russian Science Foundation.
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Bondarenko, N.P. Spectral data characterization for the Sturm–Liouville operator on the star-shaped graph. Anal.Math.Phys. 10, 83 (2020). https://doi.org/10.1007/s13324-020-00430-y
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DOI: https://doi.org/10.1007/s13324-020-00430-y
Keywords
- Inverse spectral problem
- Sturm–Liouville operator on graph
- Differential operators on graphs
- Quantum graphs
- Spectral data characterization
- Local solvability
- stability
- Method of spectral mappings