Geodesic
Numerical Solution of Inverse Spectral Problems for Sturm–Liouville Operators with Discontinuous Potentials
Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 14 (2014) no. 3, pp. 273-279 
L. S. Efremova. Numerical Solution of Inverse Spectral Problems for Sturm–Liouville Operators with Discontinuous Potentials. Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, Tome 14 (2014) no. 3, pp. 273-279. http://geodesic.mathdoc.fr/item/ISU_2014_14_3_a4/
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     title = {Numerical {Solution} of {Inverse} {Spectral} {Problems} for {Sturm{\textendash}Liouville} {Operators} with {Discontinuous} {Potentials}},
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Voir la notice de l'article provenant de la source Math-Net.Ru

We consider Sturm–Liouville differential operator with potential having a finite number of simple discontinuities. This paper is devoted to the numerical solution of such inverse spectral problems. The main result of this work is a procedure that is able to recover both the points of discontinuities as well as the heights of the jumps. Following, using these results, we may apply a suitable numerical method (for example, the generalized Rundell–Sacks algorithm with a special form of the reference potential) to reconstruct the potential more precisely.

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