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Citations (Crossref Cited-By Service + Math-Net.Ru) |
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| 1. |
Kh. K. Ishkin, “On a Trivial Monodromy Criterion for the Sturm–Liouville Equation”, Math. Notes, 94:4 (2013), 508–523        |
| 2. |
Kh. K. Ishkin, “A localization criterion for the spectrum of the Sturm–Liouville operator on a curve”, St. Petersburg Math. J., 28:1 (2017), 37–63 |
| 3. |
Kh. K. Ishkin, “Necessary Conditions for the Localization of the Spectrum of the Sturm–Liouville Problem on a Curve”, Math. Notes, 78:1 (2005), 64–75 |
| 4. |
Kh. K. Ishkin, “On localization of the spectrum of the problem with complex weight”, J. Math. Sci., 150:6 (2008), 2488–2499 |
| 5. |
Kh. K. Ishkin, “On the Uniqueness Criterion for Solutions of the Sturm–Liouville Equation”, Math. Notes, 84:4 (2008), 515–528 |
| 6. |
Kh. K. Ishkin, A. V. Rezbayev, “On the Davies Formula for the Distribution of Eigenvalues of a Non-Self-Adjoint Differential Operator”, J. Math. Sci., 252:3 (2021), 374–383 |
| 7. |
Ishkin Kh. K., “On the Spectral Instability of the Sturm–Liouville Operator with a Complex Potential”, Differential Equations, 45:4 (2009), 494–509 |
| 8. |
Kh. K. Ishkin, “Spectral Properties of the Non-Sectorial Sturm–Liouville Operator on the Semiaxis”, Math. Notes, 113:5 (2023), 663–679 |
| 9. |
Ishkin Kh. K., “A localization criterion for the eigenvalues of a spectrally unstable operator”, Doklady Mathematics, 80:3 (2009), 829–832 |
| 10. |
Kh. K. Ishkin, L. G. Davletova, “Regularized Trace of a Sturm—Liouville Operator on a Curve with a regular Singularity on the Chord”, Differential Equations, 56:10 (2020), 1257–1269 |
| 11. |
Kh. K. Ishkin, R. I. Marvanov, “On localization conditions for spectrum of model operator for Orr–Sommerfeld equation”, Ufa Math. J., 12:4 (2020), 64–77 |
| 12. |
Kh. K. Ishkin, “Conditions of Spectrum Localization for Operators not Close to Self-Adjoint Operators”, Doklady Mathematics, 97:2 (2018), 170–173 |
| 13. |
Ishkin Kh. K., “On the Birkhoff–Tamarkin–Langer Conditions and a Conjecture of Davies”, Doklady Mathematics, 91:3 (2015), 259–262
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| 14. |
Kh. K. Ishkin, “On continuity of the spectrum of a singular quasi-differential operator with respect to a parameter”, Eurasian Math. J., 2:3 (2011), 67–81
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| 15. |
Kh.K.Ishkin, “Asymptotic behavior of the spectrum and the regularized trace of higher-order singular differential operators”, Differential equations, 31:10 (1995), 1622–1632 |
| 16. |
Kh. K. Ishkin, R. I. Marvanov, “On the Class of Potentials with Trivial Monodromy”, Lobachevskii J. Math., 42 (2021), 1166–1174
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| 17. |
Kh. K. Ishkin, Kh. Kh. Murtazin, “Asymptotics for the eigenvalues of a fourth order differential operator in a “degenerate” case”, Ufa Mathematical Journal, 8:3 (2016), 79–94 |
| 18. |
Kh. K. Ishkin, “On analytic properties of Weyl function of Sturm–Liouville operator with a decaying complex potential”, Ufa Math. Journal, 5:1 (2013), 36–55 |
| 19. |
Ishkin Kh. K., “Conditions for localization of the limit spectrum of a model operator associated with the Orr–Sommerfeld equation”, Doklady Mathematics, 86:1 (2012), 549–552 |
| 20. |
Kh. K. Ishkin, Kh. Kh. Murtazin, “Quantum defect for the Dirac operator with a nonanalytic potential”, Theoret. and Math. Phys., 125:3 (2000), 1678–1686 |
| 21. |
Kh. Ishkin, “On Analytic Perturbations of a Non-Self-Adjoint Anharmonic Oscillator”, Lobachevskii J. Math., 44 (2023), 1854–1869 |
| 22. |
Kh. K. Ishkin, L. G. Davletova, “An Analogue of the Gelfand–Levitan Trace Formula for the Sturm–Liouville Operator with a Meromorphic Potential”, Lobachevskii J. Math., 43 (2022), 1519–1531 |
| 23. |
Kh. K. Ishkin, R. I. Marvanov, “Equivalence criterion for two asymptotic formulae”, Ufa Math. J., 12:1 (2020), 30–42 |
| 24. |
Kh. K. Ishkin, R. I. Marvanov, “Non-accretive Sturm-Liouville operator with discrete spectrum”, Journal of Mathematics Mechanics and Computer Science, 108:4 (2020), 18–25 |
| 25. |
L. G. Valiullina, Kh. K. Ishkin, “The formula for the regularized trace of the Sturm-Liouville operator with a logarithmic potential”, Tamkang Journal of Mathematics, 50:3 (2019), 199–211 |
| 26. |
L. G. Valiullina, Kh. K. Ishkin, R. I. Marvanov, “Spectral asymptotics for fourth order differential operator with two turning points”, Ufa Math. J., 10:4 (2018), 24–39 |
| 27. |
L. G. Valiullina, Kh. K. Ishkin, “On the localization conditions for the spectrum of a non-self-adjoint Sturm–Liouville operator with slowly growing potential”, J. Math. Sci., 241:5 (2019), 556–569 |
| 28. |
Kh. K. Ishkin, A. V. Rezbayev, “On the conditions for the existence of triangular transformation operator for a binomial differential equations”, International Conference “Functional Analysis in Interdisciplinary Applications” (FAIA2017), AIP Conference Proceedings (Astana, Okt 02–05, 2017), 1880, eds. T. Kal'menov, M. Sadybekov, American Institute of Physics, Melville, NY, 2017, 050006 |
| 29. |
Kh. K. Ishkin, “A Criterion for Spectrum Decomposition”, Math. Notes, 72:5 (2002), 620–630 |
| 30. |
Kh. K. Ishkin, R. I. Marvanov, “Erratum”, Ufa Math. J., 14:4 (2022), 150 |
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