In this paper, an Adomian decomposition method using Chebyshev orthogonal polynomials is
proposed to solve a well-known class of weakly singular Volterra integral equations. Comparison with the
collocation method using polynomial spline approximation with Legendre Radau points reveals that the
Adomian decomposition method using Chebyshev orthogonal polynomials is of high accuracy and reduces
the size of computational work