Superconvergence of the h-p version of the finite element method in one dimension
Journal of Computational and Applied Mathematics
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We reveal the relationship between a Petrov---Galerkin method and a spectral collocation method at the Chebyshev points of the second kind (卤1 and zeros of U k ) for the two-point boundary value problem. Derivative superconvergence points are identified as the Chebyshev points of the first kind (Zeros of T k ). Super-geometric convergent rate is established for a special class of solutions.