Postprocessing and higher order convergence for the mixed finite element approximations of the eigenvalue problem (Q623281)
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scientific article; zbMATH DE number 5851368
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Postprocessing and higher order convergence for the mixed finite element approximations of the eigenvalue problem |
scientific article; zbMATH DE number 5851368 |
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Postprocessing and higher order convergence for the mixed finite element approximations of the eigenvalue problem (English)
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14 February 2011
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The authors consider the classical 2D second-order elliptic eigenvalue problem and suggest a postprecessing scheme in order to improve the convergence rate of the lowest order Raviart-Thomas mixed finite element method. Their convergence results seem to refer only to the first eigenpair.
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second-order elliptic eigenvalue problem
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Raviart-Thomas element
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Rayleigh quotient
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supercloseness
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postprocessing
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first eigenpair
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mixed finite element method
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convergence
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