References

Journal of Mathematical Sciences: Advances and Applications

ASYMPTOTIC SPECTRUM OF THE OPERATOR AND CHARACTERISTIC FUNCTION OPERATOR STURM-LIOUVILLE

[1] G. Freiling and V. Yurko, Inverse Sturm-Liouville Problems and their Applications, Nova Science Publishers, Inc. Huntington, New York, 2008.

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[3] I. Kalčo, Construction solutions differential operator type Sturm-Liouville border task with linear delay, Bulletin of the international mathematical virtual institute ISSN (p) 2303-4874, ISSN (o) 2303-4955, 0.951.

[4] Göran Borg, Eine Umkehrung der Sturm-Liouvilleschen Eigenwertaufgabe, Acta Math. 78 (1946), 1-96.

[5] N. Levinson, The inverse Sturm-Liouville problem, Math. Tidssker. 13 (1949), 25-30.

[6] R. Carlson, Inverse spectral theory for some singular Sturm-Liouville problems, J. Diff. Equations 106 (1993), 121-140.

[7] G. Freiling and V. Yurko, Inverse problems for Sturm-Liouville differential operators with a constant delay, Applied Mathematical Letters (2012).