In this paper we prove some superconvergence of a new family of mixed finite element spaces of higher order which we introduced in [ETNA, Vol. 37, pp. 189-201, 2010]. Among all the mixed finite element spaces having an optimal order of convergence on quadrilateral grids, this space has the smallest
New decomposition of shape functions spaces of mixed finite element methods
β Scribed by A. Bendali; N. Raynaud; J.-M. Thomas
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 373 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0893-9659
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β¦ Synopsis
A new decomposition of the shape functions spaces involved in mixed finite element method is introduced. This decomposition is particularly well suited to handling the local equilibrium condition. Associated with the dual mixed hybrid formulation, this property reduces the mixed formulation of second order elliptic boundary-value problems in divergence form to a generalized nonconforming finite element method with only the interface multipliers as unknowns.
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