Previous |  Up |  Next

Article

Keywords:
finite element method; singular perturbation; convection-diffusion problem; Bakhvalov-type meshes; layer-adapted meshes; optimal error estimates; exponential boundary layers
Summary:
So far optimal error estimates on Bakhvalov-type meshes are only known for finite difference and finite element methods solving linear convection-diffusion problems in the one-dimensional case. We prove (almost) optimal error estimates for problems with exponential boundary layers in two dimensions.
References:
[1] Dobrowolski, M., Roos, H.-G.: A priori estimates for the solution of convection-diffusion problems and interpolation on Shishkin meshes. Z. Anal. Anwend. 16 (1997), 1001-1012. DOI 10.4171/ZAA/801 | MR 1615644 | Zbl 0892.35014
[2] Franz, S.: Singularly perturbed problems with characteristic layers. PHD TU Dresden (2008). Zbl 1302.35002
[3] Linß, T.: Analysis of a Galerkin finite element method on a Bakhvalov-Shishkin mesh for a linear convection-diffusion problem. IMA J. Numer. Anal. 20 (2000), 621-632. DOI 10.1093/imanum/20.4.621 | MR 1795300 | Zbl 0966.65083
[4] Linß, T.: Uniform superconvergence of a Galerkin finite element method on Shishkin-type meshes. Numer. Methods Partial Differential Equations 16 (2000), 426-440. DOI 10.1002/1098-2426(200009)16:5<426::AID-NUM2>3.0.CO;2-R | MR 1778398
[5] Lin{ß}, T., Stynes, M.: Asymptotic analysis and Shishkin-type decomposition for an elliptic convection-diffusion problem. J. Math. Anal. Appl. 261 (2001), 604-632. DOI 10.1006/jmaa.2001.7550 | MR 1853059 | Zbl 1200.35046
[6] Linß, T.: Layer-adapted Meshes for Reaction-convection-diffusion Problems. Lecture Notes in Mathematics, Vol. 1985. Springer Berlin (2010). MR 2583792
[7] O'Riordan, E., Shiskin, G.: A technique to prove parameter-uniform convergence for a singularly perturbed convection-diffusion equation. J. Comput. Appl. Math. 206 (2007), 136-145. DOI 10.1016/j.cam.2006.06.002 | MR 2333841
[8] Roos, H.-G., Lin{ß}, T.: Sufficient conditions for uniform convergence on layer-adapted grids. Computing 63 (1999), 27-45. DOI 10.1007/s006070050049 | MR 1702159 | Zbl 0931.65085
[9] Roos, H.-G.: Error estimates for linear finite elements on Bakhvalov-type meshes. Appl. Math. 51 (2006), 63-72. DOI 10.1007/s10492-006-0005-y | MR 2197323 | Zbl 1164.65486
[10] Roos, H.-G., Stynes, M., Tobiska, L.: Robust Numerical Methods for Singularly Perturbed Differential Equations. Springer Berlin (2008). MR 2454024 | Zbl 1155.65087
[11] Stynes, M., O'Riordan, E.: A uniformly convergent Galerkin method on a Shishkin mesh for a convection-diffusion problem. J. Math. Anal. Appl. 214 (1997), 36-54. DOI 10.1006/jmaa.1997.5581 | MR 1645503 | Zbl 0917.65088
[12] Stynes, M., Tobiska, L.: The SDFEM for a convection-diffusion problem with a boundary layer: optimal error analysis and enhancement of accuracy. SIAM J. Numer.Anal. 41 (2003), 1620-1642. DOI 10.1137/S0036142902404728 | MR 2035000 | Zbl 1055.65121
Partner of
EuDML logo