Postprocessing of a finite element scheme with linear elements
Neittaanmäki, P., Křižek, M. (1987). Postprocessing of a finite element scheme with linear elements. In W. Hackbusch & K. Witsch (Eds) Numerical Techniques in Continuum Mechanics, pp. 69-83. doi:10.1007/978-3-322-85997-6_7
Päivämäärä
1987Pääsyrajoitukset
Tekijänoikeudet
© the Authors & Friedr. Vieweg & Sohn
In this contribution we first give a brief survey of postprocessing techniques for accelerating the convergence of finite element schemes for elliptic problems. We also generalize a local superconvergence technique recently analyzed by Křížek and Neittaanmäki to a global technique. Finally, we show that it is possible to obtain O(h4) accuracy for the gradient in some cases when only linear elements are used. Numerical tests are presented.
Julkaisija
Friedr. Vieweg & SohnEmojulkaisun ISBN
978-3-528-08091-4Kuuluu julkaisuun
Numerical Techniques in Continuum MechanicsMetadata
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