TY - JOUR T1 - Mixed Fourier-Jacobi Spectral Method for Two-Dimensional Neumann Boundary Value Problems JO - East Asian Journal on Applied Mathematics VL - 3 SP - 284 EP - 296 PY - 2018 DA - 2018/02 SN - 1 DO - http://doi.org/10.4208/eajam.281010.200411a UR - https://global-sci.org/intro/article_detail/eajam/10909.html KW - Mixed Fourier-Jacobi orthogonal approximation, spectral method, Neumann boundary value problem. AB -

In this paper, we propose a mixed Fourier-Jacobi spectral method for two dimensional Neumann boundary value problem. This method differs from the classical spectral method. The homogeneous Neumann boundary condition is satisfied exactly. Moreover, a tridiagonal matrix is employed, instead of the full stiffness matrix encountered in the classical variational formulation. For analyzing the numerical error, we establish the mixed Fourier-Jacobi orthogonal approximation. The convergence of proposed scheme is proved. Numerical results demonstrate the efficiency of this approach.