D.I. Borisov, D.M. Polyakov, “Uniform Spectral Asymptotics for a Schrödinger Operator on a Segment with Delta-Interaction”, Russ. J. Math. Phys., 31:2 (2024), 149
D. I. Borisov, D. M. Polyakov, “Asymptotics for Eigenvalues of Schrödinger Operator with Small Translation and Dirichlet Condition”, Dokl. Math., 2024
D. I. Borisov, D. M. Polyakov, “Asymptotics for eigenvalues of Schrödinger operator with small shift and Dirichlet condition”, Doklady Rossijskoj akademii nauk. Matematika, informatika, processy upravleniâ, 517:1 (2024), 44
Tumanov S., “Completeness Theorem For the System of Eigenfunctions of the Complex Schrodinger Operator l-C = -D(2)/Dx(2) + Cx(2/3)”, J. Funct. Anal., 280:7 (2021), 108820
Д. В. Георгиевский, “Асимптотики собственных значений в задаче Орра–Зоммерфельда для малых скоростей невозмущенного течения”, Докл. РАН. Матем., информ., проц. упр., 496 (2021), 26–29 ; D. V. Georgievskii, “Asymptotics of eigenvalues in the Orr–Sommerfeld problem for low velocities of unperturbed flow”, Dokl. Math., 103:1 (2021), 19–22
Shafarevich A., “Quantization Conditions on Riemannian Surfaces and Spectral Series of Non-Selfadjoint Operators”, Formal and Analytic Solutions of Diff. Equations, Springer Proceedings in Mathematics & Statistics, 256, ed. Filipuk G. Lastra A. Michalik S., Springer, 2018, 177–187
A. A. Shkalikov, S. N. Tumanov, “Spectral Portraits in the Semi-Classical Approximation of the Sturm-Liouville Problem with a Complex Potential”, J. Phys.: Conf. Ser., 1141 (2018), 012155
А. М. Савчук, А. А. Шкаликов, “Спектральные свойства комплексного оператора Эйри на полуоси”, Функц. анализ и его прил., 51:1 (2017), 82–98 ; A. M. Savchuk, A. A. Shkalikov, “Spectral Properties of the Complex Airy Operator on the Half-Line”, Funct. Anal. Appl., 51:1 (2017), 66–79
Д. В. Нехаев, А. И. Шафаревич, “Квазиклассический предел спектра оператора Шрёдингера с комплексным периодическим потенциалом”, Матем. сб., 208:10 (2017), 126–148 ; D. V. Nekhaev, A. I. Shafarevich, “A quasiclassical limit of the spectrum of a Schrödinger operator with complex periodic potential”, Sb. Math., 208:10 (2017), 1535–1556
Tumanov S.N. Shkalikov A.A., “the Limit Spectral Graph in Semiclassical Approximation For the Sturm-Liouville Problem With Complex Polynomial Potential”, Dokl. Math., 92:3 (2015), 773–777