A Robust Finite Element Method for a 3-D Elliptic Singular Perturbation Problem

A Robust Finite Element Method for a 3-D Elliptic Singular Perturbation Problem

Year:    2007

Journal of Computational Mathematics, Vol. 25 (2007), Iss. 6 : pp. 631–644

Abstract

This paper proposes a robust finite element method for a three-dimensional fourth-order elliptic singular perturbation problem. The method uses the three-dimensional Morley element and replaces the finite element functions in the part of bilinear form corresponding to the second-order differential operator by a suitable approximation. To give such an approximation, a convergent nonconforming element for the second-order problem is constructed. It is shown that the method converges uniformly in the perturbation parameter.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2007-JCM-8719

Journal of Computational Mathematics, Vol. 25 (2007), Iss. 6 : pp. 631–644

Published online:    2007-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    14

Keywords:    Finite element Singular perturbation problem.