@Article{JCM-24-4, author = {}, title = {Chebyshev Weighted Norm Least-Squares Spectral Methods for the Elliptic Problem}, journal = {Journal of Computational Mathematics}, year = {2006}, volume = {24}, number = {4}, pages = {451--462}, abstract = {

We develop and analyze a first-order system least-squares spectral method for the second-order elliptic boundary value problem with variable coefficients. We first analyze the Chebyshev weighted norm least-squares functional defined by the sum of the $L^2_w$- and $H^{-1}_w$-norm of the residual equations and then we replace the negative norm by the discrete negative norm and analyze the discrete Chebyshev weighted least-squares method. The spectral convergence is derived for the proposed method. We also present various numerical experiments. The Legendre weighted least-squares method can be easily developed by following this paper.  

}, issn = {1991-7139}, doi = {https://doi.org/2006-JCM-8766}, url = {https://global-sci.com/article/85089/chebyshev-weighted-norm-least-squares-spectral-methods-for-the-elliptic-problem} }