Fuzzy bivariate triangular functions with application to nonlinear fuzzy Fredholm–Volterra integral equations in two dimensions

In this paper, an iterative numerical method based on two-dimensional triangular basis functions has been presented to obtain the numerical solution of fuzzy Fredholm–Volterra integral equations in two dimensions. Error estimation of the proposed method has been gained in terms of uniform and partial modulus of continuity. Also, numerical stability with respect to choice of the starting point of iteration has been also proved under the any theorem. Finally, some numerical examples have been included to demonstrate the convergence and accuracy of the proposed method.