Geodesic
Inverse Spectral Problem for Integro-Differential Operators
Matematičeskie zametki, Tome 81 (2007) no. 6, pp. 855-866.

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In this paper, we study the inverse spectral problem on a finite interval for the integro-differential operator $\ell$ which is the perturbation of the Sturm–Liouville operator by the Volterra integral operator. The potential $q$ belongs to $L_2[0,\pi]$ and the kernel of the integral perturbation is integrable in its domain of definition. We obtain a local solution of the inverse reconstruction problem for the potential $q$, given the kernel of the integral perturbation, and prove the stability of this solution. For the spectral data we take the spectra of two operators given by the expression for $\ell$ and by two pairs of boundary conditions coinciding at one of the finite points.
Keywords: integro-differential operator, inverse spectral problem, nonlinear integral equation, Sturm–Liouville operator, Volterra integral operator, inverse problem, Cauchy–Bunyakovskii inequality. 
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Yu. V. Kuryshova. Inverse Spectral Problem for Integro-Differential Operators. Matematičeskie zametki, Tome 81 (2007) no. 6, pp. 855-866. http://geodesic.mathdoc.fr/item/MZM_2007_81_6_a4/

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