Approximation equations Iterative methods 6 Numerical experiments 5 Numerical methods 5 Finite difference method 4 Number of iterations 4 Partial differential equations 4 Successive over relaxation 4 Finite-difference solution 3 Maximum absolute error 3 Boundary value problems 2 Discretization process 2 Finite difference approximations 2 Finite-difference discretization 2 Fractional derivative operator 2 Implicit finite-difference schemes 2 Linear systems 2 SOR iterative method 2 Two point boundary value problems 2 Alternating group explicit 1 Block iterative method 1 Derivative operators 1 Diffusion equations 1 Discretization scheme 1 Finite difference scheme 1 Fractional operators 1 Numerical solution 1 Parabolic Equations 1