Chiang Mai Journal of Science

                  The sinc-Galerkin method(SGM) is presented for solving Bratu's problem, some properties of the sinc-Galerkin method required for our subsequent development are given and are utilized to reduce the computation of solution of the Bratu equation to some algebraic equations. The exponential convergence rate of the method, , is developed. By considering the maximum absolute errors in the solution at uniform grid points and tabulated in tables, we conclude that our presented method (SGM) produces more accurate results in comparison with those obtained by Laplace (LM), LGSM, decomposition (DM) and B-spline (BSM) method.