An elliptic singularly perturbed problem
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Lj. Teofanov; H.-G. Roos
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Article
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2008
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Elsevier Science
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English
β 233 KB
In this paper we consider a singularly perturbed elliptic model problem with two small parameters posed on the unit square. The problem is solved numerically by the finite element method using piecewise linear or bilinear elements on a layer-adapted Shishkin mesh. We prove that method with bilinear