In this research, we consider the system of linear Volterra-Fredholm integro-differential equations (SVFIDEs). The main aim of this research is to approximate the integral by Gauss-Kronrod-Legendre quadrature rules and then using quintic B-spline as the bases function. The unknown coefficients in combination determine by collocation method. The arising system of algebraic linear can be solved via iterative method. Error analysis is investigated theoretically. Numerical text problems are considered to justify the applicability and efficient nature of our approach, comparison of the results justify the considerable accuracy and efficiency proposed methods. The extended parameter in valued in the spline can be chosen in such a way to improve the accuracy also.
[1] A.M. Wazwaz, Linear and Nonlinear Integral Equations Methods and Applications, Springer Heidelberg Dordrecht London New York, 2011. [2] D. Colton, R. Kress, Integral Equation Methods in Scattering Theory, New York, 1983. [3] H. Brunner, Iterated collocation methods and their discretizatins for Volterra integral equations, SIAM Journal on Numerical Analysis, 21(3), 1132–1145, (1984). [4] DD. Ganji, GA. Afrouzi, H. Hosseinzadeh, and RA. Talarposhti, Application of homotopy-perturbation method to the second kind of nonlinear integral equations, Physics Letters A, 371, 20–25, (2007). [5] ST. Mohyud-Din, A. Yildirim, and E. Yuluklu, Homotopy analysis method for space- and time-fractional KdV equation, International Journal Numerical MathematicsInt Heat and Fluid Flow, 7, 928–941, (2012). [6] YM. Chu, S Ullah, M. Ali, GF Tuzzahrah, and T. Munir, Numerical Investigation of Volterra Integral Equations of Second Kind using Optimal Homotopy Asymptotic Method, Applied Mathematics and Computation, 430, (2022), https://doi.org/10.1016/j.amc.2022.127304. [7] Z. Xiaoyang, Y. Xiaofan, Techniques for solving integral and differential equations by Legendre wavelets, International Journal of Systems Science, 40, 1127–1137, (2009). [8] Z. Mahmoodi, Quadrature Rule Extended Spline Method for Nonlinear and Linear Volterra Integral Equations, Analytical and Numerical Solutions for Nonlinear Equations, 9(2), 150–160, (2025). [9] M. Kazemi, Quadrature Rules for Solving Two-Dimensional Fredholm Integral Equations of Second Kind, Analytical and Numerical Solutions for Nonlinear Equations, 8(2), 172–181, (2023). [10] I.A. Adam, A.M. Abdullahi, S.O. Haishat, J.B. Sefinat, and J.F. Mistura, Efficient Boubakar Chebyshev Polynomial Algorithm for High Order Non-Linear Volterra-Fredholm Integro-Differential Equations, Journal of Institutional Research, Big Data Analytics and Innovation, 1(3), 1–8, (2025). [11] A.R. Nazemi, M.H. Farahi, and A.V. Kamyad, A new technique for approximate solutions of the nonlinear Volterra integral equations of the second kind, Sharif University of Technology, 14, 579–585, (2007). [12] AL. Martire, Volterra integral equations: An approach based on Lipschitz-continuity, Applied Mathematics Computation, 435, (2022). https://doi.org/10.1016/j.amc.2022.127496. [13] A.A. Hamoud, L.A. Dawood, K.P. Ghadle, and S.M. Atshan, Usage of the modified variational iteration technique for solving Fredholm integro-differential equations, International Journal of Mechanical and Production Engineering Research and Development, 9(2), 895–902, (2019). [14] M. Didgara, A. Vahidi, Approximate Solution of Linear Volterra-Fredholm Integral Equations and Systems of Volterra-Fredholm Integral Equations using Taylor Expansion Method, Iranian Journal of Mathematical Sciences and Informatics, 15(1), 31–50, (2020). [15] S. Yalçinba¸s, Taylor polynomial solutions of nonlinear Volterra-Fredholm integral equations, Applied Mathematics and Computation, 127, 195–206, (2002). [16] J. Saberi-Nadjafi, M. Heidari, Solving nonlinear integral equations in the Urysohn form by Newton- Kantorovich-quadrature method, Computers and Mathematics with Applications, 60, 2058–2065, (2010). [17] Z. Gilani, M. Alipour, and S. Rivaz, System of Volterra Fredholm Integro-Fractional Differential Equations: Application of Fibonacci Polynomials, Analytical and Numerical Solutions for Nonlinear Equations, 9(1), 89–101, (2024). [18] H.D. Mazraeh, M. Kalantari, S.H. Tabasi, A.A. Aghaei, Z. Kalantari, and F. Fahimi, Solving Fredholm Integral Equations of the Second Kind Using an Improved Cuckoo Optimization Algorithm, Analytical and Numerical Solutions for Nonlinear Equations, 7(1), 33–52, (2022). [19] A. Abdi, G. Hojjati, Z. Jackiewicz, and H. Mahdi, A new code for Volterra integral equations based on natural Runge-Kutta methods, Applied Numerical Mathematics, 143, 35–50, (2019). [20] A.M. Muhammad, A.M. Ayal, Numerical solution of linear Volterra integral equation with delay using Bernstein polynomial, International Electronic Journal of Mathematics Education, 14(3), 735–740, (2019). [21] S.C. Buranay, M.A. Özarslan, and S.S. Falahhesar, Numerical Solution of the Fredholm and Volterra Integral Equations by Using Modified BernsteinKantorovich Operators, Mathematics, 9(11), (2021). https://doi.org/10.3390/math9111193. [22] P.M. Prenter, Spline and variational methods, John Wiley and Sons, New-York, 1975. [23] D. Kincaid, W. Cheney, Numerical analysis: mathematics of scientific computing, The University of Texas at Austin, 1990. [24] F. Peherstorfer, K. Petras, Stieltjes polynomials and Gauss-Kronrod quadrature for Jacobi weight functions, Numerische Mathematik, 95, 689–706, (2003). [25] M.M Spalevic, A note on generalized averaged Gaussian formulas, Numerical Algorithms, 46, 253–264, (2007). [26] W. Gautschi, Orthogonal polynomials and quadrature, Electronic Transactions on Numerical Analysis, 9, 65–76, (1999).[27] C.A. Hall, On error bounds for spline interpolation, Journal of Approximation Theory, 1, 209–218, (1968). [28] W.D. Hoskins, P.J. Ponzo, Some Properties of a Class of Band Matrices, Math. Comput., 26(118), 393–400, (1972). [29] A.A. Jalal, N.A. Sleman, and A.I. Amen, Numerical Methods for Solving the System of Volterra-Fredholm Integro-Differential Equations. Journal of Pure and Applied Sciences, 31(2), 25–30, (2019).
Mahmoodi, Z. (2026). The Solution for Systems of High-Order Linear Volterra-Fredholm Integro-Differential Equations. Analytical and Numerical Solutions for Nonlinear Equations, 11(1), 93-100. doi: 10.22128/ansne.2026.3231.1190
MLA
Zahra Mahmoodi. "The Solution for Systems of High-Order Linear Volterra-Fredholm Integro-Differential Equations", Analytical and Numerical Solutions for Nonlinear Equations, 11, 1, 2026, 93-100. doi: 10.22128/ansne.2026.3231.1190
HARVARD
Mahmoodi, Z. (2026). 'The Solution for Systems of High-Order Linear Volterra-Fredholm Integro-Differential Equations', Analytical and Numerical Solutions for Nonlinear Equations, 11(1), pp. 93-100. doi: 10.22128/ansne.2026.3231.1190
VANCOUVER
Mahmoodi, Z. The Solution for Systems of High-Order Linear Volterra-Fredholm Integro-Differential Equations. Analytical and Numerical Solutions for Nonlinear Equations, 2026; 11(1): 93-100. doi: 10.22128/ansne.2026.3231.1190