Superconvergence of elliptic reconstructions of finite element solutions of parabolic problems in domains with piecewise smooth boundaries
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This paper addresses the superconvergence properties of the elliptic reconstruction of semi-discrete finite element solutions of linear parabolic problems on domains with piecewise smooth boundary. Numerical computations are presented and explained employing the optimal a priori error estimates proven in the Appendix. 2012 Elsevier B.V.