Yagub N. Aliyev, 282, Operator Theory, Functional Analysis and Applications, 2021, 33
Seyfollah Mosazadeh, “A new approach to asymptotic formulas for eigenfunctions of discontinuous non-selfadjoint Sturm–Liouville operators”, J. Pseudo-Differ. Oper. Appl., 11, № 4, 2020, 1805
Manfred Möller, “Minimality of eigenfunctions and associated functions of ordinary differential operators”, Adv. Oper. Theory, 5, № 3, 2020, 1014
Ziyatkhan S. Aliyev, Gunay T. Mamedova, “Some properties of eigenfunctions for the equation of vibrating beam with a spectral parameter in the boundary conditions”, Journal of Differential Equations, 269, № 2, 2020, 1383
Nazim Kerimov, Yagub Aliyev, 798, Advances in Functional Analysis and Operator Theory, 2024, 1
N. Kapustin, A. Kholomeeva, “One Problem for the Bessel Equation with a Spectral Parameter in the Boundary Condition”, Lobachevskii J Math, 45, № 5, 2024, 2293
Yagub Aliyev, 6, Analysis and Applied Mathematics, 2024, 21
V. S. Kobenko, A. A. Shkalikov, “Boundary Value Problems for Ordinary Differential Equations with Linear Dependence on the Spectral Parameter”, Dokl. Math., 110, № 3, 2024, 506