Our purpose in this paper was to determine the eigenvalues of the boundary value problem with separated and parameter dependent boundary conditions when the potential function is integrable and symmetric. We first provided the asymptotic estimates of the eigenvalues of the related problem. Second, we computed numerical results for the eigenvalues using the interpolating element free Galerkin method. Then, a few examples are presented to illustrate the power of the method and compare the asymptotical and numerical results for consistency and validity.
Citation: Ayşe Kabataş, Süleyman Şengül. Computation of the eigenvalues of a second-order boundary value problem with parameter dependent boundary conditions[J]. AIMS Mathematics, 2026, 11(3): 6030-6049. doi: 10.3934/math.2026250
Our purpose in this paper was to determine the eigenvalues of the boundary value problem with separated and parameter dependent boundary conditions when the potential function is integrable and symmetric. We first provided the asymptotic estimates of the eigenvalues of the related problem. Second, we computed numerical results for the eigenvalues using the interpolating element free Galerkin method. Then, a few examples are presented to illustrate the power of the method and compare the asymptotical and numerical results for consistency and validity.
| [1] |
A. Almalki, Sinc-galerkin method for Sturm–Liouville problem with applications in quantum mechanics, J. Umm Al-Qura Univ. Appll. Sci., (2025), 1–11. https://doi.org/10.1007/s43994-025-00249-y doi: 10.1007/s43994-025-00249-y
|
| [2] |
E. Başkaya, On the asymptotics of eigenvalues for a Sturm-Liouville problem with symmetric single-well potential, Demonstr. Math., 57 (2024), 20230129. https://doi.org/10.1515/dema-2023-0129 doi: 10.1515/dema-2023-0129
|
| [3] | E. Başkaya, On the gaps of Neumann eigenvalues for Hill's equation with symmetric double well potential, Tbil. Math. J., 8 (2021), 139–145. |
| [4] | E. Başkaya, Periodic and semi-periodic eigenvalues of Hill's equation with symmetric double well potential, TWMS J. Appl. Eng. Math., 10 (2020), 346–352. https://dergipark.org.tr/en/download/article-file/1181245 |
| [5] |
E. Baskaya, H. Coşkun, The derivative of spectral function of the problem with the boundary condition dependent on spectral parameter, Turk. J. Math., 50 (2026), 153–163. https://doi.org/10.55730/1300-0098.3641 doi: 10.55730/1300-0098.3641
|
| [6] |
E. Başkaya, S. Şengül, On symmetric potential in a boundary value problem dependent on an eigenparameter, AIMS Math., 10 (2025), 21835–21852. https://doi.org/10.3934/math.2025971 doi: 10.3934/math.2025971
|
| [7] | C. M. Bender, S. A. Orszag, Advanced mathematical methods for scientists and engineers, McGraw-Hill International Editions, 1987. |
| [8] | A. I. Benedek, R. Panzone, On Sturm-Liouville Problems with the square-root of the eigenvalue parameter contained in the boundary conditions, INMABB-CONICET, Universidad Nacional del Sur, 1981. https://www.inmabb-conicet.gob.ar/static/publicaciones/naa/naa-10.pdf |
| [9] | B. V. Brunt, The calculus of variations, Berlin: Springer, 2003. |
| [10] |
N. M. Bujurke, C. S. Salimath, S. C. Shiralashetti, Computation of eigenvalues and solutions of regular Sturm–Liouville problems using Haar wavelets, J. Comput. Appl. Math., 219 (2008), 90–101. https://doi.org/10.1016/j.cam.2007.07.005 doi: 10.1016/j.cam.2007.07.005
|
| [11] |
Y. M. Cheng, F. N. Bai, M. J. Peng, A novel interpolating element-free Galerkin (IEFG) method for two-dimensional elastoplasticity, Appl. Math. Model., 38 (2014), 5187–5197. https://doi.org/10.1016/j.apm.2014.04.008 doi: 10.1016/j.apm.2014.04.008
|
| [12] |
I. Celik, Approximate calculation of eigenvalues with the method of weighted residuals–collocation method, Appl. Math. Comput., 160 (2005), 401–410. https://doi.org/10.1016/j.amc.2003.11.011 doi: 10.1016/j.amc.2003.11.011
|
| [13] | B. Chanane, Computation of the eigenvalues of Sturm-Liouville problems with parameter dependent boundary conditions using the regularized sampling method, Math. Comput., 74 (2005), 1793–1801. https://www.jstor.org/stable/4100211 |
| [14] |
B. Chanane, Computing the spectrum of non-self-adjoint Sturm–Liouville problems with parameter-dependent boundary conditions, J. Comput. Appl. Math., 206 (2007), 229–237. https://doi.org/10.1016/j.cam.2006.06.014 doi: 10.1016/j.cam.2006.06.014
|
| [15] |
H. Coşkun, E. Başkaya, A. Kabataş, Instability Intervals for Hill's equation with symmetric single well potential, Ukr. Math. J., 71 (2019), 977–983. https://doi.org/10.1007/s11253-019-01692-x doi: 10.1007/s11253-019-01692-x
|
| [16] |
H. Coşkun, A. Kabataş, E. Başkaya, On Green's function for boundary value problem with eigenvalue dependent quadratic boundary condition, Bound. Value Probl., 2017 (2017), 71. https://doi.org/10.1186/s13661-017-0802-0 doi: 10.1186/s13661-017-0802-0
|
| [17] |
H. Coşkun, A. Kabataş, Asymptotic approximations of eigenfunctions for regular Sturm-Liouville Problems with eigenvalue parameter in the boundary condition for integrable potential, Math. Scand., 113 (2013), 143–160. https://doi.org/10.7146/math.scand.a-15486 doi: 10.7146/math.scand.a-15486
|
| [18] |
H. Coşkun, E. Başkaya, Asymptotics of eigenvalues of regular Sturm-Liouville problems with eigenvalue parameter in the boundary condition for integrable potential, Math. Scand., 107 (2010), 209–223. https://doi.org/10.7146/math.scand.a-15152 doi: 10.7146/math.scand.a-15152
|
| [19] | Y. M. Frederick Wan, Introduction to the calculus of variations and its applications, London: Chapman and Hall, 1995. https://doi.org/10.1201/9780203749821 |
| [20] |
C. T. Fulton, Two point boundary value problems with eigenvalue parameter contained in the boundary conditions, Proc. R. Soc. Edinb. A: Math., 77 (1977), 293–308. https://doi.org/10.1017/S030821050002521X doi: 10.1017/S030821050002521X
|
| [21] |
B. J. Harris, The form of the spectral functions associated with Sturm-Liouville problems with continuous spectrum, Mathematika, 44 (1997), 149–161. https://doi.org/10.1112/S0025579300012043 doi: 10.1112/S0025579300012043
|
| [22] |
H. Hochstadt, On inverse problems associated with second-order differential operators, Acta Math., 119 (1967), 173–192. https://doi.org/10.1007/BF02392082 doi: 10.1007/BF02392082
|
| [23] |
A. Kabataş, Sturm-Liouville problems with non-linear dependence on the spectral parameter in the boundary conditions, Bound. Value Probl., 118 (2025). https://doi.org/10.1186/s13661-025-02086-8 doi: 10.1186/s13661-025-02086-8
|
| [24] |
A. Kabataş, One boundary value problem including a spectral parameter in all boundary conditions, Opusc. Math., 43 (2023), 651–661. https://doi.org/10.7494/OpMath.2023.43.5.651 doi: 10.7494/OpMath.2023.43.5.651
|
| [25] |
A. Kabataş, Eigenfunction and Green's function asymptotics for Hill's equation with symmetric single well potential, Ukr. Math. J., 74 (2022), 218–231. https://doi.org/10.37863/umzh.v74i2.6246 doi: 10.37863/umzh.v74i2.6246
|
| [26] |
A. Kabataş, On eigenfunctions of Hill's equation with symmetric double well potential, Commun. Fac. Sci. Univ. Ank. Ser. A1 Math. Stat., 71 (2022), 634–649. https://doi.org/10.31801/cfsuasmas.974409 doi: 10.31801/cfsuasmas.974409
|
| [27] |
N. B. Kerimov, K. R. Mamedov, On one boundary value problem with a spectral parameter in the boundary conditions, Sib. Math. J., 40 (1999), 281–290. https://doi.org/10.1007/s11202-999-0008-5 doi: 10.1007/s11202-999-0008-5
|
| [28] |
P. Lancaster, K. Salkauskas, Surfaces generated by moving least squares methods, Math. Comput., 37 (1981), 141–158. http://dx.doi.org/10.1090/S0025-5718-1981-0616367-1 doi: 10.1090/S0025-5718-1981-0616367-1
|
| [29] |
O. S. Mukhtarov, M. Yücel, A study of the eigenfunctions of the singular Sturm–Liouville problem using the analytical method and the decomposition technique, Mathematics, 8 (2020), 415. https://doi.org/10.3390/math8030415 doi: 10.3390/math8030415
|
| [30] |
S. Y. Reutskiy, A meshless method for nonlinear, singular and generalized Sturm-Liouville problems, Comput. Model. Eng. Sci., 34 (2008), 227. https://doi.org/10.3970/cmes.2008.034.227 doi: 10.3970/cmes.2008.034.227
|
| [31] |
Q. Shen, Numerical solution of the Sturm–Liouville problem with local RBF-based differential quadrature collocation method, Int. J. Comput. Math., 88 (2011), 285–295. https://doi.org/10.1080/00207160903370180 doi: 10.1080/00207160903370180
|
| [32] |
M. M. Tharwat, H. B. Ali, Y. Ahmet, Numerical computation of eigenvalues of discontinuous Sturm–Liouville problems with parameter dependent boundary conditions using sinc method, Numer. Algorithms, 63 (2013), 27–48. https://doi.org/10.1007/s11075-012-9609-3 doi: 10.1007/s11075-012-9609-3
|
| [33] |
M. M. Tharwat, H. B. Ali, S. A. Abdulaziz, Approximation of eigenvalues of discontinuous Sturm-Liouville problems with eigenparameter in all boundary conditions, Bound. Value Probl., 1 (2013), 132. https://doi.org/10.1186/1687-2770-2013-132 doi: 10.1186/1687-2770-2013-132
|
| [34] |
J. F. Wang, F. X. Sun, Y. M. Cheng, , A. X. Huang, Error estimates for the interpolating moving least-squares method, Appl. Math. Comput., 245 (2014), 321–342. https://doi.org/10.1016/j.amc.2014.07.072 doi: 10.1016/j.amc.2014.07.072
|
| [35] |
X. Yang, Z. Zhang, Analysis of a new NFV scheme preserving DMP for two-dimensional sub-diffusion equation on distorted meshes, J. Sci. Comput., 99 (2024), 80. https://doi.org/10.1007/s10915-024-02511-7 doi: 10.1007/s10915-024-02511-7
|
| [36] |
X. Yang, Z. Zhang, Superconvergence analysis of a robust orthogonal Gauss collocation method for 2D fourth-order subdiffusion equations, J. Sci. Comput., 100 (2024), 62. https://doi.org/10.1007/s10915-024-02616-z doi: 10.1007/s10915-024-02616-z
|
| [37] |
J. Zhang, X. Yang, S. Wang, A compact difference method for the 2-D Kuramoto-Tsuzuki complex equation with Neumann boundary characterized by strong nonlinear effects, Comput. Math. Appl., 203 (2026), 1–19. https://doi.org/10.1016/j.camwa.2025.11.013 doi: 10.1016/j.camwa.2025.11.013
|
| [38] |
Z. Zhang, X. Yang, Error estimation of $\alpha_p$-robust ADI difference scheme on graded meshes for the three-dimensional nonlinear multiterm subdiffusion equation with constant coefficients, Comput. Appl. Math., 45 (2026), 187. https://doi.org/10.1007/s40314-025-03469-4 doi: 10.1007/s40314-025-03469-4
|