A finite-element method is developed which improves accuracy and yields superconvergent approximations to two-dimensional elliptic boundary-value problems on a union of square bilinear elements. This method employs an auxiliary equation which is derived using a Taylor series analysis on the discrete
Superconvergence of finite element approximations to Maxwell's equations
β Scribed by Peter Monk
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 839 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0749-159X
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β¦ Synopsis
We study superconvergence of edge finite element approximations to the magnetostatic problem and to the time-dependent Maxwell system. We show that in special discrete norms there is an increase of one power in the order of convergence of the finite element method compared to error estimates in standard Sobolev norms. Our results are restricted to an orthogonal grid in R3, but the grid may be nonuniform.
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