In this paper the Carey non-conforming ยฎnite element is considered for solving eigenvalue problems of the second-order elliptic operator. Based on an interpolation postprocessing, high-accuracy estimates of both eigenfunctions and eigenvalues are obtained: Here, P 2 2h is an interpolation operator,
SUPERCONVERGENT RECOVERIES OF CAREY NON-CONFORMING ELEMENT APPROXIMATIONS
โ Scribed by ZHANG, LIN ;LI, LIKANG
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 164 KB
- Volume
- 13
- Category
- Article
- ISSN
- 1069-8299
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โฆ Synopsis
In this paper the superconvergence of the Carey non-conforming element is considered. A superconvergence estimate on the centres of elements and some superconvergent recoveries on the three vertices and the three midpoints of edges of elements are also obtained for piecewise strongly regular triangulations.
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