OICC Press Mathematical Sciences 2251-7456 16 3 (September 2022) 2021 06 10 A new wavelet method for solving a class of nonlinear partial integro-differential equations with weakly singular kernels 10.1007/s40096-021-00414-4 EN Yaser Rostami Department of Mathematics, Islamic Azad University, Tehran, IR Journal Article 2021 06 10 Abstract This article gives a numerical solution for solving the two-dimensional nonlinear Fredholm–Volterra partial integro-differential equations with boundary conditions with weakly singular kernels. The collocation method has been used for these operational matrices of the Taylor wavelet along with the Newton method to reduce the given partial integro-differential equation to the system of algebraic equations. Error analysis is considered to indicate the convergence of the approximation used in this method. Attaining this purpose, first, two-dimensional Taylor wavelet and then operational matrices should be defined. Regarding the characteristics of the Taylor wavelet, we were obtaining high accuracy of the method. Finally, examples are provided to demonstrate that the proposed method is effective.