Computable Finite Element Error Bounds for Poisson's Equation
- 1 October 1982
- journal article
- Published by Oxford University Press (OUP) in IMA Journal of Numerical Analysis
- Vol. 2 (4) , 475-479
- https://doi.org/10.1093/imanum/2.4.475
Abstract
New explicit finite element error bounds are presented for approximation by (1) piecewise linear elements over triangles and (2) piecewise bilinear elements over squares and rectangles. By this the error bounds given in Bamhill, Brown & Mitchell (1981) are improved.Keywords
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