Natural and postprocessed superconvergence in semilinear problems
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Superconvergence error estimates are established for a class of semilinear problems defined by a linear elliptic operator with a nonlinear forcing term. The analysis is for rectangular biquadratic elements, and we prove superconvergence of the derivative components along associated lines through the Gauss points. Derivative postprocessing formula and formulas for integrals are also considered and similar superconvergence estimates proven. Copyright 1991 Wiley Periodicals, Inc.
Numerical Methods for Partial Differential Equations
author list (cited authors)
Chow, S., Carey, G. F., & Lazarov, R. D.
complete list of authors
Chow, S-S||Carey, GF||Lazarov, RD