This paper tries to provide an attractive framework based on Block-Pulse functions for the numerical solution of a system of two-dimensional Volterra integral equations of the second kind. These types of systems are created through the modeling of physics or engineering phenomena. By constructing operational matrices based on Block Pulse functions and the reduction of variables, a simpler algorithm is built. The block-pulse method is affordable because it converts algebraic systems to a matrix system and reduces the amount of computation. Some numerical examples and error analysis, which are in detail, support the method.
[1] W. M. Abd-Elhameed and Y. H. Youssri, Numerical solutions for Volterra-Fredholm-Hammerstein integral equations via second kind Chebyshev quadrature collocation algorithm, Adv. Math. Sci. Appl., (2014).
[2] K. Atkinson and W. Han, Theoretical numerical analysis, Third ed., Applied Mathematics. Springer, Dordrecht, 39 (2005).
[3] S. Behera and S. Saha Ray, Euler wavelet method for solving fractional-order linear Volterra-Fredholm integrodifferential equations with weakly singular kernels, J CAPM, 40(192) (2021).
[4] S. Behera and S. Saha Ray, An operational matrix based scheme for numerical solutions of nonlinear weakly singular partial integro-differential equations, J. Appl. Math. Comp, 367 (2020), 124771.
[5] I. Brunner, Collocation Methods for Volterra Integral and Related Functional Differential Equations, Cambridge University Press, Cambridge, (2004).
[6] M. V. Bulatov and P. M. Lima, Two-dimensional integral-algebraic systems: Analysis and computational methods, J. Comput. Appl. Math. 236 (2011), 132–140.
[7] D. Conte and B. Paternoster, Multistep collocation methods for Volterra integral equations, J. Appl. Num. Math, 59(8) (2009), 1721-1736.
[8] G. V. Demidenko and S. V. Uspenski, Partial Differential Equations and Systems not Solvable with Respect to the Highest-order Derivative, Taylor and Francis, (2005).
[9] M. Fallahpour, M. Khodabin, and K. Maleknejad, Theoretical error analysis and validation in numerical solution of two-dimensional linear stochastic Volterra-Fredholm integral equation by applying the block-pulse functions, J. Cogent Mathematics., 4 (2017).
[10] R. M. Hafez and Y. H. Youssri, Spectral Legendre-Chebyshev treatment of 2D linear and nonlinear mixed VolterraFredholm integral equation, J. Math. Sci. Lett., (2020).
[11] A. Karimi, K. Maleknejad, and R. Ezzati, Numerical solutions of system of two-dimensional Volterra integral equation via Legendre wavelets and convergence, J. App. Num. Math., 156 (2020), 228-241.
[12] Y. Li and N. Sun, Numerical solution of fractional differential equations using the generalized block pulse operational matrix, J. Comput. Math. Appl., 62 (2011), 1046-1054.
[13] K. Maleknejad, M. Khodabin, and M. Rostami, Numerical solution of stochastic Volterra integral equations by a stichastic operational matrix based on block pulse functins., J. Math. Comput. Model., 55 (2012), 791-800.
[14] K. Maleknejad and A. Ostadi, Numerical solution of system of Volterra integral equations with weakly singular kernels and its convergence analysis., J. Appl. Numer. Math., 115 (2017), 82-98.
[15] B. Moiseiwitsch, Integral Equations, Dover Publications Inc., New York, (2005).
[16] S. Najafalizadeh and R. Ezzati, A block puls nonlinear eoperational matrix method for solving two-dimensional nonlinear integro-differential equations of fractional order, J. Comput. Appl. Math., 326 (2017), 159-170.
[17] Y. Qian, I. Wu, and Y. Zhang, A Note on the Unique Solutionof the Integral Equations in the framework of Fixed Point Theorem on Partially Ordered Metric Space, Applied Mathematics and Statistics, 4(5) (2016), 154-160.
[18] C. T. Sheng, Z. Q. Wang, and B. Y. Guo, A Multistep Legendre–Gauss Spectral Collocation Method for Nonlinear Volterra Integral Equations, SIAM Journal on Numerical Analysis, 52(4) (2014), 1953-1980.
[19] Y. H. Youssri and R. M. Hafez, Chebyshev collocation treatment of Volterra-Fredholm integral equation with error analysis, Arabian Journal of Mathematics, Springer, (2020).
Karimi, A. , Maleknejad, K. and Ezzati, R. (2026). Numerical solutions and error analysis of a system of two-dimensional Volterra integral equations via Block-Pulse functions. Computational Methods for Differential Equations, 14(1), 223-234. doi: 10.22034/cmde.2024.60254.2570
MLA
Karimi, A. , , Maleknejad, K. , and Ezzati, R. . "Numerical solutions and error analysis of a system of two-dimensional Volterra integral equations via Block-Pulse functions", Computational Methods for Differential Equations, 14, 1, 2026, 223-234. doi: 10.22034/cmde.2024.60254.2570
HARVARD
Karimi, A., Maleknejad, K., Ezzati, R. (2026). 'Numerical solutions and error analysis of a system of two-dimensional Volterra integral equations via Block-Pulse functions', Computational Methods for Differential Equations, 14(1), pp. 223-234. doi: 10.22034/cmde.2024.60254.2570
CHICAGO
A. Karimi , K. Maleknejad and R. Ezzati, "Numerical solutions and error analysis of a system of two-dimensional Volterra integral equations via Block-Pulse functions," Computational Methods for Differential Equations, 14 1 (2026): 223-234, doi: 10.22034/cmde.2024.60254.2570
VANCOUVER
Karimi, A., Maleknejad, K., Ezzati, R. Numerical solutions and error analysis of a system of two-dimensional Volterra integral equations via Block-Pulse functions. Computational Methods for Differential Equations, 2026; 14(1): 223-234. doi: 10.22034/cmde.2024.60254.2570