| A Remark on Ciarlet-Raviart Mixed Finite Element Method |
| Received:February 24, 1996 |
| Key Words:
mixed finite element Ciarlet-Raviart scheme.
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| Fund Project:This work was supported by National Natural Science Foundation of China and Science Foundation of The Hongkong Polytechnic University. |
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| Abstract: |
| In this paper, a variant of Ciarlet-Raviart mixed finite element scheme for solving the biharmonic equation is introduced, in which linear and quadratic elements are used for approximating the vorticity -△φ and the stream function φ, respectively.Under the conditions that triangulation is quasi-uniform, it is proved that the scheme has the same order of accuracy as the standard Ciarlet-Raviart scheme using quadratic finite elements. |
| Citation: |
| DOI:10.3770/j.issn:1000-341X.1999.01.005 |
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